I’m running my little zD&T z/OS system on my laptop. I am the only person on this system, so I have to do every thing myself.
I started my MQ system last week, and now it is complaining that it cannot allocate archive logs. From my experience with MQ, I know this is serious. I know I have lots of space on my disks, so why can’t MQ use it.
I’ll go through the diagnostic path I took, which shows the SMS commands I used, and give the solution.
The blog post One minute SMS covers many of the concepts (and commands used).
The error messages
CSQJ072E %CSQ9 ARCHIVE LOG DATA SET 'CSQARC2.CSQ9.B0000002' HAS BEEN ALLOCATED TO NON-TAPE DEVICE AND CATALOGUED, OVERRIDING CATALOG PARAMETER
IGD17272I VOLUME SELECTION HAS FAILED FOR INSUFFICIENT SPACE FOR DATA SET CSQARC2.CSQ9.A0000002 JOBNAME (CSQ9MSTR) STEPNAME (CSQ9MSTR) PROGNAME (CSQYASCP)
REQUESTED SPACE QUANTITY = 120960 KB
STORCLAS (SCMQS) MGMTCLAS ( ) DATACLAS ( )
STORGRPS (SGMQS SGBASE SGEXTEAV )
IKJ56893I DATA SET CSQARC2.CSQ9.A0000002 NOT ALLOCATED+
IGD17273I ALLOCATION HAS FAILED FOR ALL VOLUMES SELECTED FOR DATA SET
CSQARC2.CSQ9.A0000002
IGD17277I THERE ARE (247) CANDIDATE VOLUMES OF WHICH (7) ARE ENABLED OR
QUIESCED
IGD17290I THERE WERE 3 CANDIDATE STORAGE GROUPS OF WHICH THE FIRST 3 814
WERE ELIGIBLE FOR VOLUME SELECTION.
THE CANDIDATE STORAGE GROUPS WERE:SGMQS SGBASE SGEXTEAV
IGD17279I 240 VOLUMES WERE REJECTED BECAUSE THEY WERE NOT ONLINE
IGD17279I 240 VOLUMES WERE REJECTED BECAUSE THE UCB WAS NOT AVAILABLE
IGD17279I 7 VOLUMES WERE REJECTED BECAUSE THEY DID NOT HAVE SUFFICIENT
SPACE (041A041D)
Why is it using the storage class SCMQS?
From the ISMF panels,
- option 7 Automatic Class Selection
- option 5 Display – Display ACS Object Information
Gives a panel
Panel Utilities Help
──────────────────────────────────────────────────────────────────────────────
ACS OBJECT DISPLAY
Command ===>
CDS Name : ACTIVE
ACS Rtn Source Data Set ACS Member Last Trans Last Date Last Time
Type Routine Translated from Name Userid Translated Translated
-------- ----------------------- -------- ---------- ---------- ----------
DATACLAS SYS1.S0W1.DFSMS.CNTL DATACLAS IBMUSER 2019/12/17 15:21
MGMTCLAS ----------------------- -------- -------- ---------- -----
STORCLAS SYS1.S0W1.DFSMS.CNTL STORCLAS IBMUSER 2020/12/02 11:23
STORGRP SYS1.S0W1.DFSMS.CNTL STORGRP IBMUSER 2019/12/17 15:23
So the ACS routine is in SYS1.S0W1.DFSMS.CNTL(STORCLAS)
This file has
PROC STORCLAS
FILTLIST MQS_HLQ INCLUDE(CSQ*.**,
CSQ.**,
MQS.**,
MQS*.**)
...
SELECT
...
WHEN (&DSN = &MQS_HLQ)
DO
SET &STORCLAS = 'SCMQS'
EXIT CODE(0)
END
...
END
END
This says for any data set name (&DSN) that match the list (&MQS_HLQ) whic has CSQ* or MQS*, then set the Storage class to ‘SCMQS’
What storage groups are connected with the MQ data set?
Member SYS1.S0W1.DFSMS.CNTL(STORGRP) has
...
WHEN (&STORCLAS= 'SCMQS')
DO
SET &STORGRP = 'SGMQS','SGBASE','SGEXTEAV'
EXIT CODE(0)
END
...
so these are the storage groups that MQ data sets will use.
What DASD volumes are in the storage group?
D SMS,SG(SGbase)
IGD002I 13:34:38 DISPLAY SMS 699
STORGRP TYPE SYSTEM= 1
SGBASE POOL +
SPACE INFORMATION:
TOTAL SPACE = 29775MB USAGE% = 98 ALERT% = 0
TRACK-MANAGED SPACE = 29775MB USAGE% = 98 ALERT% = 0
Hows there is 29775 M allocated -and it is 98% full.
D SMS,SG(SGMQS)
IGD002I 13:31:33 DISPLAY SMS 678
STORGRP TYPE SYSTEM= 1
SGMQS POOL +
SPACE INFORMATION:
NOT AVAILABLE TO BE DISPLAYED
***************************** LEGEND *****************************
. THE STORAGE GROUP OR VOLUME IS NOT DEFINED TO THE SYSTEM
+ THE STORAGE GROUP OR VOLUME IS ENABLED
- THE STORAGE GROUP OR VOLUME IS DISABLED
* THE STORAGE GROUP OR VOLUME IS QUIESCED
D THE STORAGE GROUP OR VOLUME IS DISABLED FOR NEW ALLOCATIONS ONLY
Q THE STORAGE GROUP OR VOLUME IS QUIESCED FOR NEW ALLOCATIONS ONLY
> THE VOLSER IN UCB IS DIFFERENT FROM THE VOLSER IN CONFIGURATION
SYSTEM 1 = S0W1
There are no volumes allocated to this storage group.
What volumes are in the storage group?
D SMS,SG(SGBASE),LISTVOL
IGD002I 13:39:07 DISPLAY SMS 705
STORGRP TYPE SYSTEM= 1
SGBASE POOL +
SPACE INFORMATION:
TOTAL SPACE = 29775MB USAGE% = 98 ALERT% = 0
TRACK-MANAGED SPACE = 29775MB USAGE% = 98 ALERT% = 0
VOLUME UNIT MVS SYSTEM= 1 STORGRP NAME
B3USR1 0ADA ONRW + SGBASE
USER0A + SGBASE
USER0B + SGBASE
USER0C + SGBASE
USER0D + SGBASE
USER0E + SGBASE
USER0F + SGBASE
USER00 0A9C ONRW + SGBASE
USER01 + SGBASE
USER02 0AB0 ONRW + SGBASE
USER03 0ACE ONRW + SGBASE
USER04 0AB2 ONRW + SGBASE
USER05 0AB5 ONRW + SGBASE
USER06 0A83 ONRW + SGBASE
...
+ THE STORAGE GROUP OR VOLUME IS ENABLED
How do I see how much space is available in my disks?
ISMF,
- option 2 – Volume
- option 1 – DASD
This gives a panel
VOLUME SELECTION ENTRY PANEL Page 1 of 3
Command ===>
Select Source to Generate Volume List . . 2 (1 - Saved list, 2 - New list)
1 Generate from a Saved List Query Name To
List Name . . COLIN Save or Retrieve
2 Generate a New List from Criteria Below
Specify Source of the New List . . 1 (1 - Physical, 2 - SMS)
Optionally Specify One or More:
Enter "/" to select option Generate Exclusive list
Type of Volume List . . . 1 (1-Online,2-Not Online,3-Either)
Volume Serial Number . . USER* (fully or partially specified)
Device Type . . . . . . . (fully or partially specified)
Device Number . . . . . . (fully specified)
To Device Number . . . (for range of devices)
Acquire Physical Data . . Y (Y or N)
Acquire Space Data . . . Y (Y or N)
Storage Group Name . . . (fully or partially specified)
CDS Name . . . . . . .
(fully specified or 'Active')
Use ENTER to Perform Selection; Use DOWN Command to View next Selection Panel;
Use HELP Command for Help; Use END Command to Exit.
or
Enter "/" to select option Generate Exclusive list
Type of Volume List . . . 1 (1-Online,2-Not Online,3-Either)
Volume Serial Number . . * (fully or partially specified)
Device Type . . . . . . . (fully or partially specified)
Device Number . . . . . . (fully specified)
To Device Number . . . (for range of devices)
Acquire Physical Data . . Y (Y or N)
Acquire Space Data . . . Y (Y or N)
Storage Group Name . . . SGBASE (fully or partially specified)
CDS Name . . . . . . . 'ACTIVE'
(fully specified or 'Active')
You can specify a Volume Serial prefix, a Storage Group Name, or a combination of both.
You need to select Acquire Physical Data, and Acquire Space Data.
You get output like
LINE VOLUME FREE % ALLOC FRAG LARGEST FREE
OPERATOR SERIAL SPACE FREE SPACE INDEX EXTENT EXTENTS ... ...
---(1)---- -(2)-- ---(3)--- (4)- ---(5)--- -(6)- ---(7)--- --(8)--
B3USR1 149186K 2 8165315K 375 34032K 36
USER00 67067K 1 8247434K 718 2490K 133
USER02 30601K 1 2740899K 412 11621K 31
USER03 3209K 0 2768291K 333 2213K 6
USER04 146198K 5 2625302K 280 42332K 19
USER05 64466K 2 2707034K 9 63802K 3
USER06 273304K 10 2498196K 177 105581K 14
Which shows I do not have much free space.
Add more space
As it looks like my storage group pools are low on disk space, I need to allocate more volumes.
See Adding more disk space to z/OS, creating volumes and adding them to SMS.
Once I added the volume to the SGBASE storage group, it usage went from
TOTAL SPACE = 29775MB USAGE% = 98 ALERT% = 0
TRACK-MANAGED SPACE = 29775MB USAGE% = 98 ALERT% = 0
to
TOTAL SPACE = 32482MB USAGE% = 89 ALERT% = 0
TRACK-MANAGED SPACE = 32482MB USAGE% = 89 ALERT% = 0
ColinPaice 