COPYRIGHT (C) 1984-2021 MERRILL CONSULTANTS DALLAS TEXAS USA
MXG NEWSLETTER TWENTY-SEVEN
MXG NEWSLETTER NUMBER TWENTY-SEVEN March 1, 1995
Technical Newsletter for Users of MXG : Merrill's Expanded Guide to CPE
TABLE OF CONTENTS Page
I. MXG Software Version 12.12, Mar 1, 1995, shipped to all sites. 2
II. MXG Technical Notes 5
1. Pentium chip defect identification. 5
2. Dealings with holidays. 5
3. Conversion of GMT timestamps to local time using MXG exits. 5
4. MXG Execution under Windows, OS/2, or UNIX 6
III. MVS Technical Notes 7
1. APAR OW07300 type 89 Measured Usage Charges record. 7
2. Memory measures in RMF and SMF data at PERFGRP/SRVCLASS/task. 7
3. Chuck Hopf's examination of how BLSR helps VSAM performance. 8
4. CPU ID 6 missing in 9021-941 machine until PTFs applied 9
5. APAR OW08903 corrects wrong SRVCLASS in type 30 SMF 9
6. APAR OW08534 incorrect type 80 SMF record created for 9
7. APAR OW08302 type 89 records might not be created. 9
8. APAR OW07446 required for N_UP support for type 6 SMF. 9
9. APAR OW08890 errors in type 61 SMF record after OW03544. 9
10. APAR PN61950 for DB2 Release 3.1.0, missing QXST.... 9
11. APAR OW06510 DCOLLECT errors (only at HDP3320/HDP3330 level) 9
12. Type 42 records contain I/O measures not available elsewhere. 9
13. Non-zero value for LEAPSECONDS offset causes time differences. 10
14. SMF records can be lost without an SMF lost data event. 10
15. You cannot measure the time a job spends in the HOLD. 11
16. Hardware Data Compression in IBM mainframes. 11
IV. DB2 Technical Notes 11
1. APAR PN63234 corrects DB2 type 101 SMF record subtype error. 11
2. Track DB2 I/O activity with TYPE42DS data. 11
3. DB2 Elapsed time in DB2ACCT is not valid. 12
V. CICS Technical Notes 12
1. APAR PN34573 CICS EOD Shutdown Statistics for OPEN files. 12
VI. SAS Technical Notes 12
1. CANNOT ACCESS LIBREF ddname NOT VALID FORMAT FOR ACCESS SASEB 12
VII. IMS Technical Notes 13
1. ABEND 878-10 running TYPEIMSA with 4 log tapes. 13
2. Candle's ITRF errors reported in Newsletter 26 are fixed. 13
VIII. Incompatibilities and Installation of MXG 12.03. 13
1. Members IMAC7072 IMAC74 IMACDB2 IMACPDB IMACWORK changed. 13
2. Installation instructions. 13
IX. Online Documentation of MXG Software. 14
X. Changes Log 16
Alphabetical list of important changes 16
Changes 12.306 thru 12.129 19-60
(Changes 12.128-12.001 were in Newsletter 26)
COPYRIGHT (C) 1995 BY MERRILL CONSULTANTS DALLAS TEXAS
I. MXG Software Version 12.12, dated Mar 1, 1995, the "Production" MXG,
was shipped to all sites with this newsletter, containing:
Major enhancements added in MXG 12.12 dated Mar 1, 1995:
Support for OS/400 AS/400 Version 3.1.0 INCOMPATIBLE.
Support for PR/SM APAR OW078986 adds "MVS Wait" to "LPAR Waits"
Support for Type 99 Subtype 1 added.
Support for CICSAO availability measurement SMF written by CICSAC.
Support for Mitchem's ACC/SRS user SMF record.
Support for LEGENT SAR Cross Memory Session Logoff user SMF record.
Support for Network Systems DXE channel RDS user SMF.
Support for Velocity Software XAMAP Version 2.2.
Support for CICSAO user SMF record for CICS availability.
Support for Boole & Babbage IMF Version 3.1 (for IMS 5.0).
Support for VAX Accounting and Performance data.
Amdahl's MDF now populates TYPE70PR/ASUM70PR with valid CPU time.
Candle's ITRF product-error corrections have been validated.
RACF TYPE80A enhanced to decode RACF commands of interest.
REXX program to convert DB2 GTF records to SMF format for MXG.
ANALPGNS reports CPU utilization by Performance Group.
ANALDB2R Support for DB2 Version 3.1 DB2PM-like reports.
ANALMTP Analysis of Tape Mounts Concurrently Waiting.
ANALRMFR enhanced, selection by storage class, device, LCU added.
XMXGSUM replacement for VMXGSUM is ready for full use.
Major enhancements added in MXG 12.07 dated Feb 6, 1995:
Support for TCP/IP Version 3.1 (incompatible).
Support for RMDS Version 2.1 (incompatible).
Support for TPX 4.0 (compatible with one line edit).
Support for RMF Monitor III ("ZRB") for MVS/ESA 4.3 - partial.
Support for Xerox Print Service Manager XPSM SMF record.
Support for BGS's BEST/1 I/O Monitor SMF record.
Support for Boole & Babbage CMF VSAM MRR records.
%ANALCNCR algorithm for concurrency analysis (inits, tapes, etc.)
Circumvention for CACHE90 zero observations with RAMAC devices.
New TYPE72DL dataset for MVS/ESA 5.1 Goal Mode
Major enhancements added in MXG 12.06 dated Jan 9, 1995:
Support for NETSPY 4.5. Compatible except for LU6.2 NSPYAPPL data.
Support for Innovation Processing's IAM user SMF record.
VM/ESA 2.2 Scheduler records supported.
Invalid DB2 type 101 SMF record workaround (fix is APAR PN63234).
Revised ANALPATH reporting for MVS I/O Path analysis.
Final (?) enhancements for VMXGSUM parsing of all dataset options.
Major enhancements added in MXG 12.05 dated Nov 20, 1994:
Support for MQM 1.1.2 Performance Statistics type 115 SMF record.
Support for MQM 1.1.2 Accounting type 116 SMF record.
Support for Omegamon for CICS V100 and V300 SMF.
Support for Landmark Monitor for MVS Release 1.3 enhanced.
Support for InfoAccess Release 5.1 user SMF record.
Support for HSM APAR OW05988, adds CPU time to FSR!
Support for Sterling Software's ASM V3.0.0 type 39 records.
Support for CA/SQL user SMF record (same as IDMS records).
Support for S/390 Parallel Query Server SPQS SMF 123 started.
Correction for NPM 2.2 NPMVSaaa datasets.
CICS Utility UTILCICS now identifies type 110s from Omegamon.
New dataset PDB.TYPE72SC for Goal Mode Server data.
Type 42 technical note, removal of GMT offset calculation.
Major enhancements added in MXG 12.04A dated Oct 23, 1994:
Support for Omegamon for VTAM V160 (Incompatible).
Correction to MXG 12.04-only errors:
Type 28 Input Statement EXCEEDED error message.
MXG Tape Unload caused return code 4, extra members unloaded.
UTILCICS failed with syntax error
Correction to SAP Accounting under IMS.
Correction to NETSPY Token-Ring TIC-UTIL in NSPYTR - was too large.
Correction to TYPE42 STARTIME/ENDTIME - may be on GMT clock.
Technical note on Memory measurement in MVS Technical Notes.
Major enhancements added in MXG 12.04 dated Sep 30, 1994:
All "Chapter 99 CodeSharks" now honored in ACHAP99.
Support for CICS/ESA 4.1.0 (compatible) adds important new measures.
Support for NPM 2.2 (compatible, but new subtypes).
Support for LEGENT's TSO/MON 6.1 (compatible).
Support for Landmark TMON Monitor for CICS/ESA 1.3 (incompatible).
Support for Landmark TMON Monitor for DB2.
Support for STK ICEBERG SMF record subtype 5.
Support for CA's TELEVIEW user SMF record.
Support for APARs OW00484/UW06888/others corrupt TYPE1415 variables.
DB2STATS variables QB3Taaaa/QB4Taaaa corrected.
TYPE37 Short LAND segment INPUT STATEMENT EXCEEDED corrected.
Major enhancements added in MXG 12.03A dated Aug 17, 1994:
Support for APAF 2.2 (incompatible).
Support for TLMS Release 5.4 (incompatible).
Support for BETA93 1.6.1 validated (it was incomplete in MXG 12.03).
Further DB2 3.1 corrections in TYPEDB2 and TYPE102 support.
Major enhancements added in MXG 12.03 dated Aug 4, 1994:
Support for MVS/ESA 5.1 Type 99 Subtype 2 record.
Support for LEGENT's ASTEX Release 2.0.
Support for UniKix Release 4.1 Binary File
Support for EMPACT's HIPER-CACHE Version 1.1.1.
Support for SMF Type 50 VTAM Tuning APAR OW04453.
Support for RSD's WSF Release 3.5.1.
Support for Omegamon II for SMS V100/V110.
Support for BETA93 user SMF record.
MXG Tape Mount and Tape Allocation Monitor errors now works!
Correction for NPM Release 2.0 subtypes 214 thru 219.
Additional DB2 3.1 Trace IFCIDs supported.
Analysis ANALDB2C matches CICSTRAN observations with DB2ACCT.
Major enhancements added in MXG 12.02 dated Jul 4, 1994:
MXG Tape Mount and Allocation Monitor was revised, new reports.
Support for IBM's CRR 1.6 (3990-3 and 3990-6) (incompatible).
Support for DFSMS 1.2 changes to DCOLLECT (compatible).
Support for MEMO subtype 6 record.
Support for TCP/IP APAR PN34837 new field (compatible).
Support for MVS APAR OW00884/UW06821 - (no impact, see MVS Notes).
Support for IMS 4.1 Log Records (see IMS Technical Notes)
Major enhancements added in MXG 12.01 dated Jun 15, 1994:
Support for MVS/ESA 5.1 many new datasets (Goal Mode Incompatible).
Support for Measured Usage SMF Record 89 and changes to type 30.
DB2 Version 3.1 Buffer Pool statistics were incorrect in MXG 11.11.
Probable Future Enhancements:
EXPLORE/VSE - Partial support might just make it into MXG 12.12, full
support of all records in second quarter 1995.
TYPE72_4 MVS/ESA Version 5.1 Goal Mode only. Some of the SUMmed
fields need to be divided by number of samples, but I need
test data to validate which variables are summed and which
are not! If you are running MVS/ESA 5.1 in Goal Mode and
want to use this RMF Monitor III data, please send me an
SMF tape (UNIT=3480,DCB=TRTCH=NOCOMP, please)!
Following are longer range (maybe's) to be attacked:
Huron - Huron SMF record - no sample SMF data, no machine DSECTS.
EPIC - LEGENT has not provided the format of their tape catalog.
Table of availability dates for the IBM products and MXG version:
Product Name Availability MXG Version
MVS/ESA 4.1 Oct 26, 1990. 8.8
MVS/ESA 4.2 Mar 29, 1991. 9.9
MVS/ESA 4.2.2 Aug 1991. 9.9
MVS/ESA 4.3 Mar 23 1993. 10.10
MVS/ESA 5.1.0 Jun 24 1994 12.02
MVS/ESA 5.2.0 ??? ?? ???? 13.??
CICS/ESA 3.2 Jun 28, 1991. 9.9
CICS/ESA 3.3 Mar 28, 1992. 10.01
CICS/ESA 4.1 Oct 27, 1994. 12.04
CICS/ESA ?.? ??? ??, ????. 13.??
CRR 1.6 Jun 24, 1994. 12.02
DB2 2.2.0 1990 8.8
DB2 2.3.0 Oct 28, 1991. 10.01
DB2 3.1.0 Dec 17, 1993. 12.04
DB2 4.1.0 ??? ??, ????. 13.??
DFSMS/MVS 1.1 Mar 13, 1993. 11.11
DFSMS/MVS 1.2 Jun 24, 1994. 12.02
NPM 2.0 Dec 17, 1993. 12.03
NPM 2.2 Aug 29, 1994. 12.05
VM/ESA 1.1.1 Dec 27, 1991. 10.01
VM/ESA 2.0 Dec 23, 1992. 10.04
VM/ESA 2.1 Jun 27, 1993. 12.02
VM/ESA 2.2 ??? ??, 1994. 12.06
Table MXG support for non-IBM products:
Product Name MXG Version
The Monitor for CICS/ESA 1.3 12.12
The Monitor for MVS/ESA 1.3 12.05
OMEGAMON for CICS V300 User SMF Record 12.05
Boole & Babbage
IMF 3.1 (for IMS 5.1) 12.12
II. MXG Technical Notes
1. You can identify that your Pentium chip is defective by using the
Windows Calculator (in Accessory Window) and calculating:
Good chips return a value of 4195835, bad chips return 4195579.
2. Dealing with holidays.
First, I do not think it is necessary to separate holidays into a
separate value of SHIFT (or to re-classify holiday dates to the
Weekend shift) for reporting. Especially for resource data, if you
plot weekly data rather than monthly, the weeks containing holidays
will naturally separate from the real weeks so you can clearly see
the growth in weekly prime capacity, and you do not need to make the
reporting more complicated with a new SHIFT. However, if you decide
(or your boss decides!) that you must separate holidays, you can use
this example (which may eventually be a formal part of MXG):
a. Build a format of holiday dates for your site, using:
PROC FORMATS LIB=LIBRARY;
(If you put your PROC FORMATS code in member IMACFMTS, then when
you install a new version of MXG and create/update the
MXG FORMATs library, your code will be executed to create/update
your MGHOLID format in the MXG format library, or you could put
this "Installation Format" in its own format library and use the
new FMTSEARCH= option in an OPTIONS statement to find the format.
//SYSIN DD *
OPTIONS FMTSEARCH=(MYLIB LIBRARY);
Remember to allocate the //LIBRARY DD with DISP=OLD (or DISP=NEW)
to write to the format library.)
b. Then use the PUT function with the MGHOLID format to determine if
the date is a holiday; this logic would be added to MXG member
IMACSHFT, by adding after the last line:
IF UPCASE(PUT(DATEPART(DATETIME),MGHOLID.))='Y' THEN SHIFT='H';
to create a fourth value of the variable SHIFT for holidays.
The point is that you must create a table of holidays, using a
PROC FORMAT, and you then use the above PUT function to do the
table lookup to determine if a specific date value is in the
list of (holiday) dates in your MGHOLID format.
3. Conversion of GMT timestamps to local time using MXG exits.
If you have a non-zero value for TIMEZONE specified in member CLOCKn
of your SYS1.PARMLIB, some fields in some SMF records (notably, the
start/end timestamps in DB2ACCT, CICSTRAN, and TYPE42DS datasets)
use that non-zero value to store GMT time instead of local time.
At some time in the future, IBM has plans to carry the value of the
GMT offset into these records so that I can correct GMT back to your
local time, but until that fix is provided by IBM, you must do it
yourself, using the MXG "Exit" member for the dataset to be changed:
Dataset Exit Member Variables to be corrected
CICSTRAN EXCICTRN STRTTIME,ENDTIME
DB2ACCT EXDB2ACC QWACESC,QWACBSC
TYPE42DS EXTY42DS STARTIME,ENDTIME
Notes a-c were revised Aug 23, 1996:
a. To correct the DB2 timestamps from GMT to USA EST time zone, you
would insert these two lines:
before the OUTPUT statement in member EXDB2ACC, as this would
subtract 5 hours from the GMT value.
b. To correct the CICS timestamps from GMT to USA PDT (-7 GMT), in
IF SMFPSRVR LT 41.0 THEN DO;
The test for CICS/ESA 4.1 is needed because Change 13.247 added
the MXG support for automatic correction of GMT. When all of
your systems are at 4.1 or later, you can delete this insertion.
c. These examples only work six months of the year. When Daylight
Savings (or Summer) Time changes, you must change the hours.
4. MXG Execution under Windows, OS/2, or UNIX.
As described in MXG Newsletter 25, MXG Software CAN be executed
under Windows, OS/2 or UNIX versions of the SAS System. That paper
also states that "just because you CAN does not mean you SHOULD"!
I still strongly recommend that MXG be executed under MVS to create
the MXG datasets on the mainframe, not only because MVS is
technically superb at handling large volumes of data and providing
large virtual space for the large MXG programs, but also because the
job and file management facilities of MVS (i.e., MVS catalog, JCL,
single DDNAME for an entire PDB library, backup, etc.) are automated
so that MVS will require much less human time to monitor and manage
the MXG job stream. Once you have built your MXG datasets on your
mainframe, then it does make sense to use SAS on your Workstation
or PC to graph, report, and/or develop analyses and reports,
especially when your plotters and graphic presentation devices
are PC or Workstation based. You can bring down only the summary
data you need for today's analysis or testing, keeping the PDB data
libraries archived on the mainframe you are measuring.
MXG was enhanced to run on PCs and Workstations, not because it is
the best place to execute MXG, but because some MXG technicians were
told they would lose their job if they could not move the SAS work
off the mainframe (typically, MXG was the only SAS application at
these sites, and the SAS mainframe license cost can exceed the
technician's salary!) As a result, the "vanilla" (unmodified)
BUILDPDB has been successfully executed under Windows, OS/2, and
UNIX on several hardware platforms. MVS data records that require
Assembly routines will not execute on PCs or Workstations;
compressed records from Landmark, Candle, and IBM require assembly
routines to decompress on the fly, or the records must first be
uncompressed on the mainframe before download. Because Windows and
OS/2 are limited to 255 open files, large MXG programs (BUILDPDB
plus many additional user SMF records, TYPE102 transit report) may
not run at all without user changes (such as splitting the data into
two runs). Nevertheless, a dozen or so sites have successfully
moved their MXG application from their mainframe to UNIX
workstations, and I will continue to support MXG execution on all
SAS platforms that I can, in spite of my present preference for MVS!
There is only one MXG Software product, and it will execute on any
supported SAS platform. MXG is shipped on 3480 cartridges, which
can be unloaded on the mainframe and then downloaded to the PC or
Workstation; installation instructions are in MXG Newsletter 25,
"Executing MXG on PCs and Workstations". If required, MXG can be
shipped as a PKZIP file on five PC diskettes.
There is only one MXG Software License, and its price and terms
apply no matter what operating system or hardware platform you use
for the execution of MXG Software; MXG is licensed at each physical
site address at which the data is created or processed, and not by
the make, model, manufacturer, color, speed or number of engines at
III. MVS Technical Notes
1. APAR OW07300 reports (without PTF) that type 89 Measured Usage MULC
records report falsely high usage for TSO if the site has an OEM
multi-user product in use, since these multi-session products
attach X number of IKJEFT01 sessions in a single address space, and
since IKJEFT01 registers X times, SMF multiples X times the actual
2. Memory measures in RMF and SMF data for the PERFGRP/SRVCLASS/task:
Prior to MVS/ESA, RMF provided only the MSOUNITS-based measure of
the real memory occupied by tasks in each performance-group-period
in TYPE72 dataset. From the MSOUNITS variable (which is the product
of the pages times seconds of TCB time times a constant), MXG
creates the variable AVGMEMSZ, the number of "K" bytes of memory
occupied by this performance group period (so a value of
AVGMEMSZ=250 meant 250K bytes). The AVGMEMSZ was never really
accurate (it measures only the pages held while the task was
executing TCB-only, and any pages held while the address space was
waiting or executing under SRB, etc., are not included), but it was
the only measure we had!
MVS/ESA Version 3 provided the much more useful measure of the total
number of frame-seconds (CSTORE+ESTORE) when page-frames were
occupied by tasks that were "resident" in real memory, for each
performance-group-period ("PGP"), in variable ACTFRMTM in dataset
TYPE72. The ACTFRMTM eliminated the TCB-only error in the old
MSOUNITS-based measures, and are thus much more accurate, since they
include the pages occupied by each PGP, whether resident tasks are
executing or waiting. However, these "ACTFRMTM-based" measures do
not include the MVS Nucleus pages, nor pages in the LPA (Link Pack
Area), nor pages in the CSA (Common Storage Area), since those page-
frames are not "owned" by an address space (although the size of
each of those areas is available in the TYPE71 dataset). And of
special significance, these "ACTFRMTM-based" measures do NOT include
any page-frames that are occupied by Logically Swapped Address
Spaces, which can be significant with lots of TSO users! (One site
found the total of the TYPE72 and TYPE71 data was 51MB in a machine
with 64MB of total memory, implying 13MB used by LSWAPs!).
MVS/ESA Version 4 added the ACTESFTM variable, the frame-seconds of
ESTORE page-frames occupied, so the CSTORE, ESTORE, and total
page-frames can now be separately calculated.
MVS/ESA Version 5 made no changes in memory measurements, but the
TYPE72 dataset will exist only in "Compatibility Mode"; when MVS is
in "Goal Mode", these same memory measures exist only in the new
TYPE72GO dataset (and instead of Performance-Group-Period, the new
entity is Service-Class-Period).
The TYPE72GO dataset still contains the archaic MSOUNITS & AVGMEMSZ
variables; variables ACTFRMTM and ACTESFTM were added with MVS/ESA,
and MXG 12.04 adds new variables TSTORE72, CSTORE72, and ESTORE72,
which are the ACTFRMTM-based measures of Total, CSTORE, and ESTORE
occupied storage. These new variables contain the number of bytes,
but are formatted with the special MGBYTES format, which converts
bytes to KB, MB, GB, etc., and adds that suffix when the variable
is printed (thus a value of 5,242,880 bytes would print as "5MB").
In the RMFINTRV dataset, where Performance Groups/Service Classes
are mapped into workloads (by your IMACWORK member), MXG creates the
ACTFRMTM-based memory occupied by each individual workload in the
variables BATMEMR, TSOMEMR, CICSMEMR, ... , and total memory
occupied by all workloads in variable TOTMEMR. These xxxxMEMR
variables are also in bytes and formatted with MGBYTES.
The RMFINTRV dataset still contains the (now-useless)
MSOUNITS-based TCB-only memory occupied variables BATWKST,
TSOWKST, CICSWKST ... and their total in AVGWKSET (note that if
AVGWKSET was equal to 5MB, it would print as 5120, because it is
units of K, and 5120*1024=5,242,880, or 5MB).
I have recently (MXG 12.04) enhanced the TYPE72GO dataset with three
new variables, TSTORE72, CSTORE72, and ESTORE72, the ACTFRMTM-based
measures of total, CSTORE, and ESTORE bytes occupied by each PGP.
Finally, in the TYPE30 datasets, at the job/step/interval level,
only MSOUNITS-based TCB-only measures exist, with PAGESECS the
TCB-only frame/page-seconds occupied, from which the AVGWKSET
variable is calculated for TYPE30_4, TYPE30_5, TYPE30_V datasets,
but all of these TCB-only-based memory metrics are of very limited
use because of their inherent inaccuracy.
The following chart (hopefully) summarizes what's captured where:
-----------GOOD STUFF---------------- --BAD--
Framesecs: ACTFRMTM ACTESFTM ACT(FRM-ESF)TM MSOUNITS
Per-PGP TSTORE72 ESTORE72 CSTORE72 AVGMEMSZ
Per-Wkload: BATMEMR n/c n/c BATWKST
TSOMEMR n/c n/c TSOWKST
CICSMEMR n/c n/c CICSWKST
OTHRMEMR n/c n/c OTHRWKST
All-Wkloads: TOTMEMR n/c n/c AVGWKST
Framesecs: n/c n/a n/a PAGESECS
Average size: n/c n/a n/a AVGWKSET
n/c = not-calculated, but could be
n/a = not-available, does not exist (16May2000)
3. Chuck Hopf's examination of how BLSR helps VSAM performance (see the
member ADOCBLSR) concentrated on Index Buffers, because usually that
is where the most benefit can be gained. However, if your VSAM file
has significantly more EXCPs to the Data Area than there are records
in the file, increasing the Data Buffers can also be rewarding. In
one case, a batch job accessing a KSDS with 78,000 records recorded
over 400,000 I/Os and the job ran for over 2.5 hours. Increasing
the number of 4K data buffers from 200 to 2,000 dropped the I/Os to
only 70,000 and the run time to only 70 minutes! Adding 5,000 more
4K buffers in Hiperspace dropped the I/Os to 19,000 and the run time
to 19 minutes! Note that while buffers increased from 200 to 7,000
(a factor of 35) the actual memory buffer-minutes used increased
only by a factor of 4.4 (from 30,000 buffer-minutes with 200 buffers
for 150 minutes to 133,000 buffer-minutes with 7,000 buffers for 19
minutes). Finally, note that the 7,000 buffers allocated are enough
for about 10% of the entire file to be resident, suggesting the old
90:10 rule; 90% of the activity hits 10% of the file! MXG analysis
program ANALBLSR can identify candidate jobs whose run time can be
improved by either data or index buffers. (1Oct94)
4. Andrew Jeppeal discovered that his 9021-941 machine with CPU IDs of
0,1,2, and 6 did not contain CPU busy for CPU #6 until his site put
PTFs UY98489/UW00101/UW00619/UY98312 maintenance on their system!
5. APAR OW08903 reports PTF correcting wrong SRVCLASS in type 30 SMF
records for TSO users, and DPRTY (SMF30PTY) contained '09'x instead
of the expected '00'x value.
6. APAR OW08534 reports PTF incorrect type 80 SMF record created for
ALTUSER command with DELCATEGORY keyword.
7. APAR OW08302 reports (no PTF yet) that type 89 records might not be
written when the local time is not in synchronization with the GMT;
that is, sites who input their local time manually or who issue the
'T CLOCK=hh.mm.ss' command before SMF is started/restarted are most
likely to experience this situation.
8. APAR OW07446's PTF is required for N_UP support to cause type 6 SMF
record variable SHEETPRN (SMF6IMPS) to correctly count the number of
sheets of paper printed (or impressions). Without this APAR, if you
use the new N_UP PSF facility (presumably, to print multiple logical
pages on a single sheet side), the count in SHEETPRN will be wrong
(and will be too large, because logical pages printed are counted.)
With the APAR, SHEETPRN correctly counts the number of sides of
sheets of paper printed.
9. APAR OW08890 reports errors in type 61 SMF record after OW03544,
notably the Entry Name, ENTRNAME, contains garbage.
10. APAR PN61950 for DB2 Release 3.1.0 puts back the missing QXST....
fields in the DB2ACCT (IFCID 3) type 101 SMF record.
11. APAR OW06510 corrects DCOLLECT errors (only at HDP3320/HDP3330 level
of DCOLLECT) wherein block sizes were not determined, which caused
the space calculation in the DCOLLECT record to be wrong.
12. Type 42 records contain powerful I/O measures that are simply not
available anywhere else in MVS. Of very specific note, the I/O
activity to DB2 datasets, interval by interval, and job by job
are now available at the DB2 table-space level in TYPE42DS (see the
discussion in DB2 Technical Notes, below), and PTFs now exist that
will create TYPE42DS data for ANY dataset, not just datasets managed
by SMS. The majority of the type 42 data is quite good, but you
should be aware of these additional type 42 notes:
In addition to the problems with STARTIME/ENDTIME in the TYPE42SR
(subtype 5) and TYPE42DS (subtype 6) that are discussed in the
text of Change 12.180 (revised, Nov 9), these are concerns:
Subtype 1: Added after NEWSLETTER TWENTY-SEVEN was printed:
This was an IBM error in SMF42TNT, that is fixed by
APAR OW11254, PTF UW15167.
TYPE42SC/TYPE42TO - Storage Class Detail and Totals:
The interval duration, DURATM (SMF42TMT), ranges from
57:13.00 to 57:27:00, instead of the 60 minutes, but
the delta time between successive SMFTIME records is
60 minutes. There appears to be 2-3 minutes in each
interval that are not measured.
Subtype 2: TYPE42CU/TYPE42VL - 3990 CU Counts and Volume Status.
The statistics in the Control Unit Cache Section, in
TYPE42CU, is extremely suspect. The LASTTIME is only
2.5 minutes before CURRTIME, which is about 2 minutes
before SMF time, yet the records are written hourly.
Worse, the current count (CCT) and last count (LCT)
are independently accumulated (for each SMF42CID), and
give very different counts of I/O activity in the
CURRTIME CCT LASTTIME LCT SMFTIME
14:56:12 47258 14:53:42 63121 14:58:37
15:56:18 64579 15:53:47 81884 15:58:38
The delta-current is 3606 seconds, and delta-last
is 3605 seconds, but delta-CCT is 17321 while the
delta-LCT is 18763 I/Os for the same hour.
Subtype 5: Even though this is an interval record, and should not
be delayed, we have data showing and ENDTIME 12:00:00
and an SMFTIME of 13:01:22 (and the site had a GMTOFF
of 1 hour). This may only indicate that it took 82
seconds after the end of the interval for MVS to allow
the type 42 logic to access the SMF buffer (i.e., it
may be a real measure of real contention for the SMF
buffer), but it is still under investigation.
Subtype 6: In addition to the problem noted in Change 12.180 with
INTVCLOS=1 (INTERVAL) SMFTIMEs much later than ENDTIME
I have instances for INTVCLOS=0 (CLOSE) records which
have SMF42PTE=22:00:27.90 with SMFTIME=17:00:09.88,
and the site has a GMT offset of 5 hours, AND THE SITE
HAS A LEAP SECOND OFFSET OF 18 SECONDS!, which is why
the PTE time is later than SMFTIME. See next note!
PTFs in 1994 now cause TYPE42DS (subtype 5) observations for ALL
datasets, not just SMS managed datasets: for SMS 1.1 UW06888,
UW07846,UW08562,UW09726,US09553 and for HSM 1.1 UW08973-74;
for SMS 1.2 UO08757,US09725 and for HSM 1.2 UW11682.
13. Sites with non-zero value for LEAPSECONDS offset will find that the
timestamps from STCK macro (i.e., those read in with TODSTAMP8.)
will include the value of leap seconds, but the SMF time stamp (byte
3 of all SMF records), and probably all other timestamps in SMF
format (i.e., those read in with SMFSTAMP8.) do NOT include the
14. SMF records can be lost without an SMF lost data event. One site
has 7.5MB of type 110 CICS statistics records to be written at each
CICS interval pop. If the CICS interval pop happens to occur at the
same instant as a SWITCH SMF command (to switch recording from MANX
to MANY), the SMF SVC immediately returns a code that "SMF Buffers
are not available", and CICS discards the statistics records with
only its own DFHxxxx message on the CICS log to indicate that data
was not written. This site never used more than 12MB of SMF buffer
space, but at the instant of the CICS interval pop, the 7.5MB of
data filled current buffers until SMF needed to expand its buffer
space. However, the SMF SWITCH process is mutually exclusive with
the buffer expansion, so SMF could not expand buffers and thus SMF
returned the "no buffers available", and CICS then chose to discard
the rest of the statistics records. Minimizing the number of SWITCH
SMF commands (by increasing the size of your MANX dataset so it can
hold an entire day's data and is thus dumped only once a day) would
minimize the exposure. In addition, scheduling that daily SMF DUMP
(which SWITCHES at least twice) so that it is not concurrent with
the interval pop can avoid the data loss. The exposure is reduced
significantly in MVS/ESA 5.1, because IBM has increased the minimum
size of the SMF buffers from 1MB to 8MB (and IBM APAR OY56676 has
been in existence since 1992 to accomplish that increase). Both
CICS and DB2 will discard records and write messages to their log if
they find buffers are not available, but theoretically, any writer
of SMF records could discard records in this situation.
For DB2, its SMF records in DB2STATS count if records were lost; see
Change 12.279 for the variables to examine if any records were lost,
and if so, from which IFCID (accounting, statistics, audit, etc.).
Note that APAR OY56676 indicates that another symptom of this
problem is the occurrence in SYSLOG of MSG IEE979W (indicating SMF
data is lost) without any preceding MSGs IEE978E or IEE986E (which
occur when there are no buffers).
15. It is not possible to measure the time a job spends in the HOLD
queue. Jobs that are read into HOLD can be identified by PDB.JOBS
variable TYPRUN='HOLD', but the time of release of the job is not
reported in any SMF record. Furthermore, if the job is read into
the Execution Queue and then placed in HOLD, there is not even any
flag that lets you know the job went into HOLD. If you know what
are reasonable worst-case durations for the input queue time for
each job class, you could establish heuristic ceiling values, and
if a job exceeds that ceiling value, you could "declare" that the
job must have been in hold during some of its input time, and could
exclude that job from queue time calculations. If you use average
values of input queue time you are really doomed if only a few jobs
in a class were held; counting the percentage of jobs in a class
that initiated in some duration is much less affected statistically
and has always been my recommendation instead of average values.
Note that Duplicate JobName hold can be detected, as is done in the
ASUMJOBS algorithms. There are JES exits from which SMF records
could be written to timestamp when jobs are released from hold, and
if you write and test the code, I will share it with MXG users!
16. Hardware Data Compression in IBM mainframes, as I understand it, is
implemented at the dataset level, and is enabled through the SMS
Data Class parameter. Thus to identify which (if any!) datasets are
compressed, you would examine the DATACLAS variable in the TYPE1415
(non-VSAM) or TYPE64 (VSAM) MXG data. To look at CPU costs with and
without data compression, you would use TYPE1415/TYPE64 to get the
READTIME JOB and SMFTIME values and select PDB.STEPS with the same
READTIME & JOB and with INITTIME LE SMFTIME LE TERMTIME to get the
step resources with and without compression. Let me know what you
discover and I will share it!
IV. DB2 Technical Notes
1. APAR PN63234 corrects DB2 type 101 SMF record subtype error. When
more than 10 package segments occur, a type 101 subtype 1 record is
supposed to be written, but IBM instead put a zero in the subtype,
which made MXG think this was a normal DB2ACCT record, causing an
observation in DB2ACCT with trashed values for many fields!
This APAR makes the subtype value correct. See Change 12.220.
2. It has always been impossible to track DB2 I/O activity (because the
Media Manager thought itself so fast that it was not necessary to
count I/Os!), but now, the TYPE42DS dataset (SMF 42 Subtype 6)
records both interval and close statistics on ALL datasets (not just
those managed by SMS). As both the DB2 Database and Tablespace or
Indexspace names are contained in the DSNAME in TYPE42DS, you can
analyze DB2 I/O for each tablespace for each DB2 subsystem. The
naming pattern for the DB2 VSAM datasets looks like this:
or, written with MXG variable names (from T102S105 dataset):
as QWHSSSID is the DB2 subsystem Name (almost always DB2...)
DSNDBD is a constant string for the data component
QW0105DN is the DB2 Database Name, and
QW0105TN is the DB2 Tablespace or Indexspace Name.
3. DB2 Elapsed time in DB2ACCT (ELAPSTM=QWHCESC-QWHCBSC) is not a valid
measure of duration in DB2 when threads do not terminate (such as
CICS primed threads and IMS wait-for-input-message regions), because
the QWHCESC ending time stamp is not taken until the next use of the
thread starts - the ELAPSTM includes time when the thread was
inactive and waiting to perform work. This is very obvious if you
match CICSTRAN with DB2ACCT (using member ANALUOW) and you find the
DB2END time is greater than the CICSEND time - that portion of the
DB2 elapsed between CICSEND and DB2END was the amount of time that
the thread was inactive. Now that I realize the impact of this DB2
"feature", ASUMUOW recalculates the DB2ELAPS duration and also now
creates new variable DB2IDLE so you can see how much of the reported
Class-one DB2 elapsed time is really thread inactive duration.
V. CICS Technical Notes
1. APAR PN34573 describes why CICS EOD Shutdown Statistics for OPEN
files and LSRPOOLs are zero when CICS is shutdown normally (i.e.,
using CEMT P SHUT. However, if CICS an immediate shutdown (i.e.,
using CEMT P SHUT I), the correct values are reported. The problem
is that normal shutdown closes the files first, and then shuts down
the CICS region, hence zero values. The APAR is closed with "FIN"
(a new one for me, described as "This closing code indicates that
this problem will be resolved if there is a next release of CICS
after CICS/ESA Version 3 Release 3.") - Fixed In Next!
VI. SAS Technical Notes
1. CANNOT ACCESS LIBREF ddname - NOT VALID FORMAT FOR ACCESS SASEB
This error occurs when the dataset pointed to by DDNAME does not
have the correct DCB attributes. SAS libraries on MVS must be
DSORG=PS, and the default DCB attributes are RECFM=FS,LRECL=512 (or
block size), BLKSIZE=Half Track (because MXG's CONFIG forces half
track to minimize DASD storage). Especially with SMS allocation,
your site can establish defaults that might be incorrect for SAS
data libraries. Usually, you can solve this error by adding a DCB
parameter to the DD statement, for example:
DCB=(DSORG=PS,RECFM=FS,LRECL=23040,BLKSIZE=23040) for 3380s
DCB=(DSORG=PS,RECFM=FS,LRECL=27648,BLKSIZE=27648) for 3390s
although you may also need to discuss your sites ACS rules with
your SMS guru.
VII. IMS Technical Notes
1. ABEND 878-10 running TYPEIMSA with 4 log tapes can be corrected by
increasing the REGION parameter to 8MB, or by reducing the number of
slots parameter from 30,000 to 20,000.
2. Candle's ITRF errors, reported in Newsletter 26, have been fixed.
The numeric errors were corrected by Candle PTFs last summer, and
the blank values are now populated by new PTF QI22910, so MXG now
fully supports Candle's Omegamon II for IMS Version 110 records.
Some MXG users who installed ITRF last fall used MXG 11.11 quite
effectively to analyze their IMS activity, even without the most
recent PTF. It appears that the errors I reported occurred during
ITRF's "Shakedown Cruise" (see page 23 of Newsletter 17 for this
nautical analogy), and Candle has now repaired ITRF to full service
as a valid source of accounting and response data for IMS systems.
VIII. Incompatibilities and Installation of MXG 12.12.
1. Incompatibilities introduced in MXG 12.12 (since MXG 11.11):
a- IMACs that were changed (if they exist in your USERID.SOURCLIB, you
must refit your tailoring, starting with the new IMAC member):
IMAC7072 IMAC74 IMACDB2 IMACPDB IMACWORK IMACTMNT
MONTHBLD WEEKBLD IMACCICS
b- The JCL for processing the OPC log requires two new DDNAMES so that
the OPC spanned records can be reconstructed and read by MXG. See
comments in member VMACOPC. Member JCLTEST6 was changed also.
c- The JCL for AS/400 processing with TYPEQAPM requires //QAPMIOPD DD
added. See Change 12.292
d- These products were incompatibly changed by their vendor, and they
require MXG 12.12 (or at least the MXG 12.xx indicated):
MVS/ESA 5.1 (Goal Mode) Change 12.034 MXG 12.02
OS/400 Version 3.1.0 Change 12.292 MXG 12.12
TCP/IP Version 3.1 Change 12.257 MXG 12.12
RMDS Version 2.1 Change 12.264 MXG 12.12
Omegamon for VTAM V160 Change 12.186 MXG 12.04A
Landmark CICS Version 1.3 Change 12.151 MXG 12.12
Landmark MVS Version 1.3 Change 12.191 MXG 12.05
APAF 2.2 Change 12.138 MXG 12.12
TLMS Release 5.4 Change 12.136 MXG 12.03A
Cache RMF Reporter 1.6 Change 12.070 MXG 12.12
2. Installation and re-installation procedures are described in detail
in member INSTALL (which also lists common Error/Warning messages a
new user might encounter); sample JCL is in member JCLINSTL:
a. Install member MXGSAS as JCL Procedure MXGSAS in your PROCLIB.
b. Allocate a 90-cyl PDS: MXG.V1212.MXG.SOURCLIB, and use IEBUPDTE
to read the MXG tape to create the 2000+ member Source Library.
c. Allocate a 1-cyl PDS: MXG.V1212.USERID.SOURCLIB for your site
"Installation Tailoring" Source Library. Installation specific
tailoring (like telling MXG your shift hours, which performance
groups are TSO, CICS, etc.) is done by copying and modifying MXG
source members into V1212.USERID.SOURCLIB.
d. Allocate a 1-cyl SAS Data Library: MXG.V1212.MXG.FORMATS and
execute SAS to create the library of Formats required by MXG.
e. If this is the initial install of MXG, tailor these members into
your MXG.V1212.USERID.SOURCLIB tailoring library:
IMACACCT (Account Length),
IMACSHFT (Shift Definitions),
IMACWORK (Performance Group to Workload mapping), and
IMACSPIN (for BUILDPDB).
Each IMAC member is self-documenting, and IMACAAAA is the index
of all of the IMACs. You should at least scan IMACAAAA to see
the acronyms MXG uses for the many products MXG supports.
e. If reinstalling MXG, copy your existing USERID.SOURCLIB library
members into the MXG.V1212.USERID.SOURCLIB. Then, compare the
members in your USERID.SOURCLIB with the list of members that
were incompatibly changed (above, in this section) in this MXG.
If any of the incompatibly changed members exist in your dataset
MXG.V1212.USERID.SOURCLIB, then you must reinstall your site's
tailoring for that IMAC, starting with the IMAC member from the
MXG 12.12 Source Library.
f. EDIT and submit member JCLTEST6 to verify that your tailoring
did not create any errors.
g. EDIT and submit JCLPDB6 to create a Daily PDB for testing. Or
use the TYPE.... members to process specific data sources, use
the ANAL.... members for report examples, the GRAF.... members
for SAS/GRAPH reports.
You have now installed MXG 12.12 in its own set of libraries. When
parallel testing is complete and are ready to implement MXG 12.12
in production, rename your three current MXG Production Libraries
(MXG.MXG.SOURCLIB, MXG.USERID.SOURCLIB, and MXG.MXG.FORMATS) to
(MXG.BACK.MXG.SOURCLIB, MXG.BACK.USERID.SOURCLIB, MXG.BACK.MXG....)
and rename the MXG.V1212.x.y libraries to their Production names!
Again, detailed installation instructions are in member INSTALL
Always read comments in the CHANGES member for compatibility issues, as
well as for any last minute changes.
Whenever you install changes or test a new version of MXG (or even your
own reports), be extra careful to look on the SAS log for any real error
conditions. Search for all occurrences of "ERROR:", "ERROR :", " NOT "
"UNINITIALIZED", "TRUNCATED", "NEVER BEEN", "NOT FOUND", "CONVERT",
"APPARENT", and "NOT CATLGD", as they usually indicate a serious error.
A PROC PRINT and a PROC MEANS of each new MXG-built SAS dataset can help
you to understand their contents, and should be used to examine any
unusually large, negative, or suspicious values. Print all variables in
the dataset, and read the variable's descriptions in its ADOC member.
IX. Online Documentation of MXG Software.
Beginning with MXG 11.11, the contents of the two MXG Books, (the 1984
MXG Guide, and the 1987 MXG Supplement) are contained in the MXG Source
Library, as are all MXG Technical Newsletters and all MXG Changes, so
all MXG documentation is actually online in the software itself; even
the Installation Instructions are online, in members INSTALL/JCLINSTL!
ACHAPxxx members are the text of the 42 chapters from the two MXG books,
to which the text from newsletters and changes has been added. Some of
these chapters are still rough; while some of the chapters have actually
been completely revised, many of these ACHAPxxx are little more than a
concatenation of the two original chapters, often without the figures
or tables. The revision is work still in progress!
Members ADOCxxxx are what were in Chapter FORTY, and should be the first
place you look for information about MXG variables and/or datasets. The
ADOCxxxx members alphabetically describe each dataset and all variables
that are created by product xxxx, the instructions on how to enable that
product, bibliography of the vendor documentation, sample PROC PRINT and
PROC MEANS of real data, references to MXG reports that use these data,
and the MXG member names that you use to process that product. While
this too is work in progress, the most heavily used data sources,
especially the common SMF records, have been revised and are up to date.
There is an IMACxxxx member for every product supported by MXG. Once
you know the xxxx suffix for a product, you then know the names of all
of the MXG members for that product, because of MXG naming conventions:
IMACxxxx - Defines record IDs, and the _Lyyyzzz and _Kyyyzzz macros
that name the dataset(s) created from product xxxx.
ADOCxxxx - "Chapter FORTY" style dataset and variable documentation of
all datasets created from product xxxx, with sample output.
VMACxxxx - The "real" source code member, often extensively commented.
TYPExxxx - Standalone member to test or process product xxxx records.
ASUMxxxx - Summarization example (only for some products)
TRNDxxxx - Trending example (only for some products)
ANALxxxx - Reporting/analysis example (only for some products)
GRAFxxxx - SAS/GRAPH report example (only for some products)
EXyyyzzz - OUTPUT exit for tailoring of each MXG dataset, not used by
most MXG sites, but powerful if needed. There can be more
than one dataset created from one product. The yyyzzz
suffix of the EXyyyzzz member name is the same as the
suffix of "_L" and "_K" macros defined in the IMACxxxx for
its product. See Using the MXG Exit Facilities in ACHAP33.
Member IMACAAAA is an index of all IMACs, and is the best place to begin
to find what xxxx suffix Merrill chose for which product! You can often
find additional documentation by searching members NEWSLTRS or CHANGESS
for the xxxx suffix.
Member CHANGES identifies this Version and Release of MXG Software, and
describes all changes made in this Release, plus new technical notes.
Member CHANGESS contains each of the CHANGES members from each version
of MXG, so this member contains ALL changes ever made to MXG Software.
Since each MXG change lists the names of the members that were added or
altered, names the new product/version supported by a change, or lists
error messages corrected by a change, this member is designed to be read
online (with SPF BROWSE); you can search for specific product acronyms
(CICS, MVS/ESA, etc.), or the MXG member name or anything else. Many of
the changes are actually mini-tutorials, especially for new products.
Member NEWSLTRS contains the text of all newsletters. You can search
NEWSLTRS for product name or acronym to find all of Dr. Merrill's
published and unpublished technical papers, technical notes announcing
enhancements in new operating systems or subsystems, new datasets and
products, important APARs and PTFs, and other technical information of
importance to MXG users. (Since the Change Log that is printed in each
newsletter is in member CHANGESS, it is not repeated in NEWSLTRS.) MXG
Technical Newsletters are typically published twice a year, with one
printed copy sent to each licensed site's technical addressee.
Member DOCVER lists alphabetically ALL datasets and variables that are
built by this MXG Software Version, abbreviated to a line per variable.
Members DOCVERnn are the "delta-documentation" between MXG versions, and
list only those datasets and variables that were added/deleted/changed
by version "nn", so you can identify when a variable/dataset was added.
Finally, remember that MXG is source code, and you can often find your
answer by BROWSING the source members, especially the VMACxxxx members.
The MXG Variable name is frequently the vendor's field name, or the
vendor's field name is often in a comment adjacent to the variable's
INPUT, so you can cross reference MXG to the vendor's documentation.
The migration from print to online is clearly work in progress, but at
least the two books are now machine readable! When all 42 chapters
are completely revised and updated in the source library, I will decide
which, if any, will also be made available in printed form, but the
primary media for all future MXG documentation will be these members of
the MXG source library, which can be immediately updated in each new
version of MXG as changes occur.
X. Changes Log
You MUST read each Change description to determine if a Change will
impact your site. All changes have been made in this MXG Library.
Member CHANGES of the MXG SOURCLIB will always be more accurate than
the printed changes in a Newsletter, because the software tapes are
created after the newsletter is sent to the printer!
Member CHANGES always identifies the actual version and release of
MXG Software that is contained in that library.
The actual code implementation of some changes in MXG SOURCLIB may be
different that described in the change text (which might have printed
only the critical part of the correction that can be made by paper).
Scan each source member named in any impacting change for any comments
at the beginning of the member for additional documentation, since the
documentation of new datasets, variables, validation status, and notes,
are often found in comments in the source members.
Alphabetical list of important changes after MXG 11.11:
Member Change Description
Many 12.034 Support for MVS/ESA 5.1.
Many 12.030 All instances of MSEC8. were removed from MXG.
ACHAP99 12.161 "Chapter 99 CodeSharks" honored.
ANALBLSR 12.001 Batch LSR analysis fails due to errors in ANALDSET.
ANALBLSR 12.080 Batch LSR analysis enhanced.
ANALBLSR 12.185 No BLSR candidates detected when there were some.
ANALCISH 12.035 CICS Shutdown report corrected, design revised.
ANALCISH 12.163 PDB=PDB,TYPE=ALL,SUMMARY=YES produced no reports.
ANALCISH 12.235 Additional DFHSTUP-like CICS Shutdown reports.
ANALCNCR 12.272 Analysis of concurrency - generalized new tool.
ANALDB2C 12.087 Analysis to match CICSTRAN with DB2ACCT.
ANALDB2R 12.078 Using ANALDB2R with PDB= tape was inefficient.
ANALDB2R 12.236 DB2 report PMSQL01 may fail - QWHCTOKN left out.
ANALDB2R 12.250 DB2 Locking Contention Report fails.
ANALDB2R 12.251 DB2 Transit Report fails with NOT SORTED.
ANALDB2R 12.270 PMLOK02 and PMLOK03 now revised.
ANALDB2R 12.305 Support for DB2 Version 3.1 DB2PM-like reports.
ANALDSET 12.001 Syntax error (wrong member migrated).
ANALMTP 12.303 Analysis of Tape Mounts Concurrently Waiting.
ANALPATH 12.239 Revised analysis of TYPE73, TYPE74, TYPE78CF data.
ANALPGNS 12.293 CPU Utilization by Performance Group analysis.
ANALRMFR 12.047 RMF CPU Activity Report CPU time can be zero.
ANALRMFR 12.276 Report selection by storage class, device, LCU.
ANALSMF 12.012 SMF Simulator 3380 tracks count wrong if CISIZE=26624
ASMIMSLG 12.129 ABEND 002 on IMSMPRS with FASTPATH records corrected.
ASMTAPES 12.024 MXG Tape Allocation and Mount Monitor almost healed.
ASMTAPES 12.058 New Tape Allocation and Mount Monitor now works!
ASMTAPES 12.105 MXG Tape Mount and Tape Allocation Monitor Now Works!
ASMTAPES 12.234 MXG Tape Mount and Tape Allocation Monitor fixes.
ANALINIT 12.274 Analysis of initiator concurrent usage.
ASUMPRTR 12.040 KEEPIN=STDUPLEX TMBUPLEX needed to be added
ASUMTALO 12.273 Revised summarization using %ANALCNCR (incompat).
ASUM70PR 12.048 INVALID NUMERIC DATA 'SAT' with modified IMACRMFI.
BUILDPDB 12.013 TYPE77 addition to BUILDPDB/BUILDPD3 causes errors.
BUILDPDB 12.026 Jobs with ABEND='JCL' are not in PDB.JOBS.
BUILDPDB 12.200 New dataset PDB.TYPE72SC for Goal Mode Server data.
BUILDPDB 12.204 TYPETASK added for jobs with only type 6 record.
DAILYDSN 12.004 Variable UMLEVEL must be added to KEEPIN= list.
DB2ACCT 12.033 DB2 3.1 Buffer Statistics are wrong.
DB2STATS 12.033 DB2 3.1 Buffer Statistics are wrong.
DIFFDB2 12.133 DDF variables QLSTxxxx incorrectly deaccumulated.
FMXGSID 12.015 Function ABENDs 0C4 with SAS 6.08 at TS407.
FMXGUCBL 12.015 Function ABENDs 0C4 with SAS 6.08 at TS407.
INSTALL 12.101 Documentation of common MXG installation errors.
REXXDB2 12.306 REXX program to convert DB2 GTF to SMF format.
TESTOTHR 12.153 ABEND 213-04 if VIO used for temporary allocation.
TRNDRMFI 12.046 Variables TSOnSWAP and TSOnTRAN were not normalized.
TYPEACC 12.277 Support for ACC/SRS from Mitchem Technologies.
TYPEACF2 12.063 INVALID data for LIDCDATE/LIDDXPDT/LIDIPDAT/LIDADATE.
TYPEACF2 12.072 INPUT STATEMENT EXCEEDED for subtype 'V' record.
TYPEACF2 12.253 ACF2 INPUT STATEMENT EXCEEDED, DO value wrong
TYPEACHE 12.262 CACHE90 zero observations with RAMAC devices.
TYPEAPAF 12.138 Support for APAF 2.0 (incompatible).
TYPEAPAF 12.197 INPUT STATEMENT EXCEEDED ... with backlevel APAF.
TYPEBETA 12.132 Support for BETA93 1.6.0 user SMF record.
TYPEBGSI 12.268 Support for BGS's BEST/1 I/O Monitor SMF record.
TYPECACH 12.194 3990-6 storage variables units were changed by IBM.
TYPECIAO 12.299 Support for CICSAO user SMF for CICS availability.
TYPECIAO 12.299 Support for CICSAO SMF record written by CICSAC.
TYPECIMS 12.265 IMF variables ABENDSYS/ABENDUSR in CIMSPROG wrong.
TYPECIMS 12.284 Support for IMF 3.1 (for IMS 5.1) - record unchanged.
TYPECMFV 12.269 Support for Boole & Babbage CMF VSAM MRR records.
TYPECTLD 12.011 INPUT STATEMENT EXCEEDED for CONTROL-D SMF record.
TYPEDB2 12.157 Dataset PDB.DB2ACCTB should have zero observations.
TYPEDB2 12.159 DB2STATS variables QB3Taaaa/QB4Taaaa corrected.
TYPEDB2 12.220 Invalid DB2 type 101 workaround (fix is APAR PN63234)
TYPEDCOL 12.051 Variable DCNDMBLK needs to be multiplied by 1024.
TYPEDCOL 12.057 Support for DFSMS 1.2 added several variables.
TYPEDMON 12.120 Support for ASTEX 2.0 added several variables.
TYPEEDGB 12.242 Support for DFSMSrmm Control Backup file
TYPEEDGR 12.242 INPUT STATEMENT EXCEEDED corrected.
TYPEHIPR 12.104 Support for EMPACT's HIPER-CACHE Version 1.1.1.
TYPEHSM 12.206 Support for HSM APAR OW05988, adds CPU time to FSR!
TYPEIAM 12.226 Support for Innovation Processing's IAM SMF record.
TYPEICE 12.031 ICEBERG dataset ICEBRGCH is trashed, misalignment.
TYPEICE 12.160 Support for STK ICEBERG SMF record subtype 5.
TYPEICE 12.228 ICEBERG variables CAENBCUR,DFWENCUR incorrect.
TYPEICE 12.243 Support for ICEBERG's PUT9404 (compatible).
TYPEIDMS 12.212 Support for CA/SQL user SMF record (same as IDMS).
TYPEIMSA 12.009 IMS Log processing incorrect, misspelled NMSGPROC.
TYPEIMSA 12.179 SAP Accounting under IMS times wrong.
TYPEITRF 12.287 Candle's ITRF product errors corrected by Candle.
TYPELMS 12.007 WARNING LMS SMF RECORD TYPE created in error.
TYPEMEMO 12.056 Support for MEMO subtype 6 SMF record.
TYPEMON8 12.291 INVALID OFFSETS IN USER SEGMENTS Landmark CICS.
TYPENDM 12.014 INPUT STATEMENT EXCEEDED for NDM type FP record.
TYPENDML 12.146 Reading NDM VSAM log produced zero observations.
TYPENSPY 12.010 LANSPY dataset NSPYLANS has no/too few observations.
TYPENSPY 12.184 NETSPY Token-Ring TIC_UTIL in NSPYTR 10 times larger.
TYPENSPY 12.196 Variables AOUTSZT and ARSPNET now match reports.
TYPENSPY 12.225 Support for NETSPY 4.5 (partially incompatible).
TYPEODS 12.198 Support for InfoAccess Release 5.1 user SMF record.
TYPEOMCI 12.027 OMEGAMON for CICS dataset OMCISYST wrong.
TYPEOMCI 12.164 Zero observations in OMCIVSAM dataset.
TYPEOMCI 12.167 INVALID DATA FOR EXMXT1 - EXMXT10 when hex zeroes.
TYPEOMCI 12.203 Support for Omegamon for CICS V100 and V300 SMF.
TYPEOMSM 12.123 Support for Omegamon II for SMS V100/V110.
TYPEOMVT 12.186 Support for Omegamon for VTAM V160 (Incompatible).
TYPEOPC 12.002 INVALID MT0TYPE, OPC29 too few obs, split support.
TYPEQAPM 12.292 Support for OS/400 AS/400 Version 3.1.0 INCOMPATIBLE.
TYPEQTRT 12.037 Support for AS/400 Trace File (QTRTSUM).
TYPERDS 12.295 Support for Network Systems DXE Channels RDS SMF.
TYPERMDS 12.264 Support for RMDS Version 2.1 (incompatible)
TYPERMFV 12.259 RMF Monitor III ("ZRB") support for MVS/ESA 4.3.
TYPESARS 12.299 Support for LEGENT's SAR Cross Memory Logoff SMF.
TYPETCP 12.041 Ambiguity between TELNET and FTP resolved.
TYPETCP 12.049 TCP/IP APAR PN34837 added 8 bytes to TELNET SERVER.
TYPETCP 12.257 Support for TCP/IP Version 3.1 (incompatible)
TYPETELE 12.229 Support for CA's TELEVIEW user SMF record.
TYPETLMS 12.136 Support for TLMS Release 5.4.
TYPETMDB 12.162 Support for Landmark's The Monitor for DB2.
TYPETMON 12.151 Support for TMON/CICS Version 1.3 (incompatible).
TYPETMVS 12.191 Support for TMON/MVS Release 1.3 (incompatible).
TYPETPX 12.008 UNRECOGNIZED TPX VERSION message.
TYPETPX 12.263 Support for TPX 4.0 (compatible, new datasets)
TYPETSOM 12.165 Support for LEGENT's TSO/MON 6.1 added (compatibly).
TYPEUNIK 12.112 Support for UniKix Release 4.1.
TYPEVMXA 12.069 UNEXPECTED/INVALID CONTROL RECORD/PROBABLE DATA LOSS.
TYPEVMXA 12.226 VM/ESA 2.2 Scheduler records cause PROBABLE LOSS.
TYPEWSF 12.096 Support for RSD's WSF Release 3.5.1.
TYPEXAM 12.282 Support for Velocity Software XAMAP Version 2.2.
TYPEXPSM 12.267 Support for Xerox Print Service Manager XPSM SMF.
TYPE102 12.032 IFCID=196 (Lock Timeout Details) now populated.
TYPE102 12.088 Additional DB2 Trace IFCIDS new in 3.1 now supported.
TYPE102 12.103 DB2 Trace IFCID=141 corrected.
TYPE102 12.135 IFCID 125 created extraneous observations.
TYPE110 12.023 CICS Statistics in CICLSRR wrong.
TYPE110 12.068 Boole & Babbage subtype 'BB02'x changed to '0B02'x.
TYPE110 12.166 Support for CICS/ESA 4.1.0 is added (compatibly).
TYPE110 12.189 CICS 3.2.1 only. CICDS variables wrong.
TYPE110 12.278 ERROR.TYPE110.SUBTYPE 2, STID=57, CICS 3.3.0.
TYPE115 12.208 Support for MQM 1.1.2 Performance Statistics SMF.
TYPE116 12.209 Support for MQM 1.1.2 Accounting SMF record.
TYPE123 12.215 Support for S/390 Parallel Query Server SPQS SMF 123.
TYPE1415 12.036 APAR OW00484 adds open date to type 14,15 SMF record.
TYPE1415 12.158 APARs OW00484/UW06888/OW08246 corrupt TYPE1415 data.
TYPE1415 12.245 INVALID DATA FOR OPENDTE corrected.
TYPE26J2 12.015 IBM truncates type 26 record, caused STOPOVER.
TYPE28 12.097 NPM Release 2.0 subtypes 214 thru 219 corrected.
TYPE28 12.145 Support for NPM Release 2.2 added NetWare measures.
TYPE28 12.188 MXG 12.04 only. Type 28 INPUT STATEMENT EXCEEDED.
TYPE28 12.201 Support for NPM 2.2 NPMVSaaa datasets corrected.
TYPE30 12.018 TYPE30_V INTBTIME/INTETIME are GMT in MULTIDD='Y'.
TYPE37 12.154 Short LAND segment caused INPUT STATEMENT EXCEEDED.
TYPE39 12.210 Support for Sterling Software's ASM V3.0.0 type 39.
TYPE42 12.019 INVALID ADSM SECTION TRIPLET and/or bad data values.
TYPE42 12.045 DFSMS GG66-3252 pub are now variables in TYPE42DS/SR
TYPE42 12.180 TYPE42 STARTIME/ENDTIME may be on GMT clock.
TYPE50 12.102 Support for VTAM Tuning APAR OW04453 type 50 SMF.
TYPE6 12.016 CA-DISPATCH 5.1 PTF T97E056 corrects bad READTIME.
TYPE6 12.059 Type 6 records from VPS now have SUBSYS='VPS '.
TYPE6 12.199 INVALID ARGUMENT TO FUNCTION INPUT with CA-DISPATCH.
TYPE62 12.122 Support for APAR OW00157 adds SMS classes to TYPE62.
TYPE70 12.288 Support for PR/SM APAR OW078986 adds "MVS Wait".
TYPE70 12.289 MDF now populates TYPE70PR/ASUM70PR w/valid CPU time
TYPE70 12.290 Same LPAR number for two LPARs trashes CPU busy.
TYPE70s 12.006 SYNCTIME wrong in RMF 71,73,74,75,77,78 and 79.
TYPE72DL 12.252 New TYPE72DL dataset for MVS/ESA 5.1 Goal Mode.
TYPE80A 12.280 RACF Command events decoded in TYPE80A for RACFRW.
TYPE89 12.028 Support for Measured Usage License Charges type 89.
TYPE91 12.038 BatchPipes/MVS APAR PN45846 adds new fields.
TYPE91 12.254 BatchPipes/MVS INTBTIME/INTETIME values incorrect.
TYPE99 12.117 Support for ESA 5.1 Workload Manager Trace SMF 99.
TYPE99 12.285 Support for Type 99 Subtype 1 added.
UCICSCNT 12.021 Utility report output counts were unclear.
UTILCICS 12.182 UTILCICS fails with syntax error, mislocated comment.
UTILCICS 12.202 CICS Utility identifies if type 110s are Omegamon's.
UTILCVRT 12.022 Non-existent conversion utility now exists.
VAXPDS 12.301 Support for VAX Accounting and Performance Data.
VMXGSUM 12.084 New features added transparently to VMXGSUM.
VMXGSUM 12.233 New VMXGSUM enhancements in XMXGSUM.
VMXGSUM 12.271 More VMXGSUM enhancements in XMXGSUM.
VMXGVTOF 12.249 DEVCYL value different for RAMAC than native devices.
WEEKBLDT 12.195 DATASET TAPEMNTS NOT SORTED.
XMXGSUM 12.304 XMXGSUM replacement for VMXGSUM ready for use.
Inverse chronological list of all Changes:
===Changes thru 12.306 were included in MXG 12.12 dated Mar 1, 1995===
===Changes thru 12.306 were printed in MXG Newsletter TWENTY-SEVEN ===