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467
z/OS Server / Re: On z/OS V2.1? CMOD Works Just Fine With New Format zFS Aggregates
« on: June 06, 2018, 11:14:08 AM »
To have all new aggregates automatically in V5 mode add this to IOEFSPRM:
There is no mass conversion utility, but there is something useful and that is the change_aggrversion_on_mount IOEFSPRM option.
With this option enabled zFS v4 datasets would be converted to v5 then next time they are mounted.
This can also be done with the converttov5 configuration option in IOEPRMxx or with CONVERTTOV5 on the mount command itself.
To maximize the conversion one could enable both change_aggrversion_on_mount and CONVERTTOV5.
Ref:
https://www.ibm.com/support/knowledgecenter/SSLTBW_2.2.0/com.ibm.zos.v2r2.ioea700/ioea7mt.htm
Ed
Quote
format_aggrversion=4 Sets the default format for new zfs datasets to v4
format_aggrversion=5 Sets the default format for new zFS datasets to v5
There is no mass conversion utility, but there is something useful and that is the change_aggrversion_on_mount IOEFSPRM option.
With this option enabled zFS v4 datasets would be converted to v5 then next time they are mounted.
This can also be done with the converttov5 configuration option in IOEPRMxx or with CONVERTTOV5 on the mount command itself.
To maximize the conversion one could enable both change_aggrversion_on_mount and CONVERTTOV5.
Ref:
https://www.ibm.com/support/knowledgecenter/SSLTBW_2.2.0/com.ibm.zos.v2r2.ioea700/ioea7mt.htm
Ed
468
z/OS Server / z/OS Performance Improvements That Require Explicit Enablement
« on: June 06, 2018, 09:08:48 AM »
I've been asked to provide a concise list of the items that are covered more extensively here:
http://www.odusergroup.org/forums/index.php?topic=1682.0
1. Base z/OS Operating system
a) USEZOSV1R9RULES(NO)
b) MEMDSENQMGMT: ENABLE
c) COFVLFxx parameters that, at a minimum, should be specified
2. JES2
a) auto-tuning of the JES2 checkpoint (at Z22 mode):
https://www.ibm.com/support/knowledgecenter/SSLTBW_2.2.0/com.ibm.zos.v2r2.hasa300/has2v5_automatic_approach.htm
3. zFS - At z/OS V2.1 a new version or release was made for zFS V1.5 or V5
If anyone has any additional please append or drop me a note.
Ed
http://www.odusergroup.org/forums/index.php?topic=1682.0
1. Base z/OS Operating system
a) USEZOSV1R9RULES(NO)
b) MEMDSENQMGMT: ENABLE
c) COFVLFxx parameters that, at a minimum, should be specified
2. JES2
a) auto-tuning of the JES2 checkpoint (at Z22 mode):
https://www.ibm.com/support/knowledgecenter/SSLTBW_2.2.0/com.ibm.zos.v2r2.hasa300/has2v5_automatic_approach.htm
3. zFS - At z/OS V2.1 a new version or release was made for zFS V1.5 or V5
If anyone has any additional please append or drop me a note.
Ed
469
z/OS Server / Re: List of Performance Related Fixes plus a Brief Checklist, Upgrading CMOD on z
« on: June 06, 2018, 08:03:17 AM »
At z/OS V2.1 a new version or release was made for zFS V1.5 or V5 depending on who you're talking to.
I talked about this here:
www.odusergroup.org/forums/index.php?topic=1710
There's a great testimonial on the web here:
https://groups.google.com/forum/#!topic/bit.listserv.ibm-main/CLBgzhjJPQk
Ed
I talked about this here:
www.odusergroup.org/forums/index.php?topic=1710
There's a great testimonial on the web here:
https://groups.google.com/forum/#!topic/bit.listserv.ibm-main/CLBgzhjJPQk
Ed
470
z/OS Server / Re: Ready for DB2 v12
« on: June 05, 2018, 07:06:49 AM »
A Db2 V12 service thread for CMOD is been created here:
Recommended DB2 on z/OS Service, V12
http://www.odusergroup.org/forums/index.php?topic=2412.0
Ed
Recommended DB2 on z/OS Service, V12
http://www.odusergroup.org/forums/index.php?topic=2412.0
Ed
471
z/OS Server / Re: List of Performance Related Fixes plus a Brief Checklist, Upgrading CMOD on z
« on: June 01, 2018, 09:49:12 AM »
What other performance enhancements should a shop be investigating?
1. For running in a SYSPLEX, the auto-tuning of the JES2 checkpoint first available in z/OS V2.2 is recommended:
https://www.ibm.com/support/knowledgecenter/SSLTBW_2.2.0/com.ibm.zos.v2r2.hasa300/has2v5_automatic_approach.htm
2. Ensure your COFVLFxx, at a minimum, has the following specified:
Ed
1. For running in a SYSPLEX, the auto-tuning of the JES2 checkpoint first available in z/OS V2.2 is recommended:
https://www.ibm.com/support/knowledgecenter/SSLTBW_2.2.0/com.ibm.zos.v2r2.hasa300/has2v5_automatic_approach.htm
2. Ensure your COFVLFxx, at a minimum, has the following specified:
Quote
CLASS NAME(CSVLLA) /* Class name for Library Lookaside @P2C*/
EMAJ(LLA) /* Major name for Library Lookaside @P2C*/
CLASS NAME(IRRSMAP) /* OpenMVS_RACF SMAP Table */
EMAJ(SMAP) /* Major name = SMAP */
CLASS NAME(IRRGMAP) /* OpenMVS_RACF GMAP Table */
EMAJ(GMAP) /* Major name = GMAP */
CLASS NAME(IRRUMAP) /* OpenMVS_RACF UMAP Table */
EMAJ(UMAP) /* Major name = UMAP */
CLASS NAME(IRRGTS) /* RACF GTS Table */
EMAJ(GTS) /* Major name = GTS */
CLASS NAME(IRRACEE) /* RACF saved ACEEs */
EMAJ(ACEE) /* Major name = ACEE */
Ed
472
z/OS Server / JES2 Checkpoint Improvement Starting At z/OS V2.2
« on: May 30, 2018, 07:15:34 AM »
Tuning the JES2 Checkpoint is always a concern.
Starting in z/OS V2.2 you can have JES2 automatically choose optimal values.
https://www.ibm.com/support/knowledgecenter/SSLTBW_2.2.0/com.ibm.zos.v2r2.hasa300/has2v5_automatic_approach.htm
Ed
Starting in z/OS V2.2 you can have JES2 automatically choose optimal values.
https://www.ibm.com/support/knowledgecenter/SSLTBW_2.2.0/com.ibm.zos.v2r2.hasa300/has2v5_automatic_approach.htm
Ed
473
z/OS Server / Addition to z/OS V2.2 Release Notes
« on: May 30, 2018, 07:14:07 AM »
Tuning the JES2 Checkpoint is always a concern.
Starting in z/OS V2.2 you can have JES2 automatically choose optimal values.
https://www.ibm.com/support/knowledgecenter/SSLTBW_2.2.0/com.ibm.zos.v2r2.hasa300/has2v5_automatic_approach.htm
Ed
Starting in z/OS V2.2 you can have JES2 automatically choose optimal values.
https://www.ibm.com/support/knowledgecenter/SSLTBW_2.2.0/com.ibm.zos.v2r2.hasa300/has2v5_automatic_approach.htm
Ed
474
z/OS Server / Re: Steps to upgrade CMOD 8.5 to CMOD 10.1 version on ZOS mainframe platform
« on: May 30, 2018, 07:06:26 AM »
Ashvin - in *theory* by merging and performing all of the steps in the different readme documents one can upgrade directly from V8.5 -> V10.1.
This has not been tested.
This is my own opinion:
I like small steps rather one big step.
Ed
This has not been tested.
This is my own opinion:
I like small steps rather one big step.
Ed
476
MP Server / PDFs for V10.1 now available
« on: May 17, 2018, 11:17:06 AM »
If it doesn't show you the list of pubs, click on "product documentation"
http://www-01.ibm.com/support/docview.wss?uid=swg27051067#docs
Ed
http://www-01.ibm.com/support/docview.wss?uid=swg27051067#docs
Ed
477
z/OS Server / PDFs for V10.1 now Available
« on: May 17, 2018, 11:15:49 AM »
If it doesn't open automatically, click on "product documentation"
http://www-01.ibm.com/support/docview.wss?uid=swg27051069#docs
Ed
http://www-01.ibm.com/support/docview.wss?uid=swg27051069#docs
Ed
478
z/OS Server / ARSSOCKD and TLS v1.2 - proof of concept
« on: May 17, 2018, 07:02:16 AM »
How to set up ARSSOCKD so that it's only accessible via TLS v1.2?
1. Get SSL up and running as per this thread:
http://www.odusergroup.org/forums/index.php?topic=1938.0
2. Disable the non-SSL connections:
SSL_CLNT_USE_SSL=1
3. Add the following ENVAR to ARSSOCKD:
XXARSSOC95 EXEC PGM=ARSSOCKD,REGION=0M,TIME=NOLIMIT,
XX PARM='ENVAR(GSK_PROTOCOL_TLSV1_2=ON,GSK_PROTOCOL_TLSV1=0)
XX /-S -I ARCH950 -v'
4. At this point you should be able to logon with the Windows client and load from Windows as well. You can verify that the connection is TLS v1.2 via your favorite TCP/IP utility.
5. For batch on the same LPAR verification you need to add the ENVAR to each batch job, for example to run the validate utility:
//STEP1 EXEC PGM=ARSMAINT,REGION=0M,
// PARM='ENVAR(GSK_PROTOCOL_TLSV1_2=ON,GSK_PROTOCOL_TLSV1=0)
// /-I ARCH950 -o -v'
//STEPLIB DD DISP=SHR,DSN=ARS.ARSV950.SARSLOAD
//ARSBIN DD PATH='/usr/lpp/ars/V9R5M0/bin'
//SYSPRINT DD SYSOUT=*,DCB=(RECFM=FBA,LRECL=134,BLKSIZE=134)
6. For security, the certificate is checked. In the batch job's JOB card I had to add the USER= parm as per this thread:
www.odusergroup.org/forums/index.php?topic=2296
Ed
1. Get SSL up and running as per this thread:
http://www.odusergroup.org/forums/index.php?topic=1938.0
2. Disable the non-SSL connections:
SSL_CLNT_USE_SSL=1
3. Add the following ENVAR to ARSSOCKD:
XXARSSOC95 EXEC PGM=ARSSOCKD,REGION=0M,TIME=NOLIMIT,
XX PARM='ENVAR(GSK_PROTOCOL_TLSV1_2=ON,GSK_PROTOCOL_TLSV1=0)
XX /-S -I ARCH950 -v'
4. At this point you should be able to logon with the Windows client and load from Windows as well. You can verify that the connection is TLS v1.2 via your favorite TCP/IP utility.
5. For batch on the same LPAR verification you need to add the ENVAR to each batch job, for example to run the validate utility:
//STEP1 EXEC PGM=ARSMAINT,REGION=0M,
// PARM='ENVAR(GSK_PROTOCOL_TLSV1_2=ON,GSK_PROTOCOL_TLSV1=0)
// /-I ARCH950 -o -v'
//STEPLIB DD DISP=SHR,DSN=ARS.ARSV950.SARSLOAD
//ARSBIN DD PATH='/usr/lpp/ars/V9R5M0/bin'
//SYSPRINT DD SYSOUT=*,DCB=(RECFM=FBA,LRECL=134,BLKSIZE=134)
6. For security, the certificate is checked. In the batch job's JOB card I had to add the USER= parm as per this thread:
www.odusergroup.org/forums/index.php?topic=2296
Ed
479
z/OS Server / Re: Recommended DB2 on z/OS Service, V12
« on: May 16, 2018, 01:27:23 PM »Thanks, any other requirements for DB2 V12 with V9.5 of CMOD?
None that we've found. CMOD itself doesn't exploit any new DB2 function.
Ed
480
Announcements & News / Re: SECURITY BULLETIN: GSKit and CMOD v9.0, v9.5, v10.1
« on: May 15, 2018, 06:47:43 AM »
Good news, from the 10.1.0.3 announcement:
> – The GSKit has been updated to version 8.0.50.88
Ed
> – The GSKit has been updated to version 8.0.50.88
Ed