Portal | Manuals | References | Downloads | Info | Programs | JCLs | Master the Mainframes
IBM Mainframe Computers Forums Index
 
Register
 
IBM Mainframe Computers Forums Index Mainframe: Search IBM Mainframe Forum: FAQ Memberlist Usergroups Profile Log in to check your private messages Log in
 

 

Upgrading z/OS 11 to z/OS 13

 
Post new topic   Reply to topic    IBMMAINFRAMES.com Support Forums -> All Other Mainframe Topics
View previous topic :: :: View next topic  
Author Message
dick scherrer

Site Director


Joined: 23 Nov 2006
Posts: 19270
Location: Inside the Matrix

PostPosted: Sat Jan 19, 2013 1:09 am    Post subject: Upgrading z/OS 11 to z/OS 13
Reply with quote

Hello,

Has anyone upgraded their system from 11 directly to 13?

Any cautionary tales?

Any showstoppers you've encountered?

Over the weekend, i plan on doing some searching to see if there is a decent cheat-sheet for this.

The folks i'm trying to help are "tennants" and the data center will do the actual upgrade. The intent here is to make sure we have done as much shake-down as possible - especially where there are known "gotcha's".
Back to top
View user's profile Send private message

Pete Wilson

Active User


Joined: 31 Dec 2009
Posts: 437
Location: London

PostPosted: Wed Jan 23, 2013 3:26 pm    Post subject:
Reply with quote

Ensure you have a backout plan ! icon_wink.gif

DFSMS ACDS gets reformatted from 1.11 to 1.12 I think so might pay to have backups of both SCDS and ACDS pre upgrade.
Back to top
View user's profile Send private message
dick scherrer

Site Director


Joined: 23 Nov 2006
Posts: 19270
Location: Inside the Matrix

PostPosted: Wed Jan 23, 2013 8:23 pm    Post subject:
Reply with quote

Thanks Pete,

Is this reformatting done automagically when going from 11 directly to 13 or does there have to be an intermediate upgrade to 12 to get there?

I'm sure the data center folks have a plan, but so far they are not "sharing".

So far, i've not found something that will provide "guidance" for those of us who are "users". A couple of times when something like this was done, we found some surprises. In the last 5 years, z/OS has been upgraded from 1.7 to 1.9 to 1.11 and now 1.13. One of the biggest issues was incomplete (or non-existent) testing on the part of some of the tennant users. . .

We're shooting for a more successful implementation.

Is anyone aware of issues with products from other vendors (CA, Syncsort, Compuware, etc)?
Back to top
View user's profile Send private message
Pete Wilson

Active User


Joined: 31 Dec 2009
Posts: 437
Location: London

PostPosted: Wed Jan 23, 2013 8:32 pm    Post subject:
Reply with quote

Yes, the reformatting happens in the SCDS when you update it from the higher level system with ISMF. If you try and update it subsequently from a lower level system it will warn you it is at a higher level, and you can logon to a higher level LPAR. If you're taking a 'big bang' approach and updating all LPARS in the plex at the same time it's not an issue, unless you want to go back to 1.11 when you might have to restore the older version. Make sure you have an empty COMMDS ready as well just in case as it remembers what ACDS you were on and you might have to do a SETSMS to load the previous version ACDS, in which case you want to do it into an empty COMMDS.

Can't speak too much about the OEM's. I guess the usual cautions would apply, maybe a DUMPQ backup for CA7, and TMC and AUDIT backup for CA1 pre upgrade. Usual stuff.

Has there been testing of all the software at 1.13 on test systems beforehand?
That's usually the best way to flush out any issues.
Back to top
View user's profile Send private message
View previous topic :: :: View next topic  
Post new topic   Reply to topic    IBMMAINFRAMES.com Support Forums -> All Other Mainframe Topics All times are GMT + 6 Hours
Page 1 of 1

 

Search our Forum:

Similar Topics
Topic Author Forum Replies Posted
No new posts problem in java on upgrading webspher... meykh2014 All Other Mainframe Topics 11 Tue May 12, 2015 1:56 pm
No new posts Experience sharing of upgrading the DB2 Francis Tchang DB2 1 Tue Dec 09, 2014 12:00 pm
This topic is locked: you cannot edit posts or make replies. Experience sharing of upgrading the CICS Francis Tchang CICS 2 Tue Dec 09, 2014 11:54 am
No new posts RISK of not upgrading softwares for D... vicky10001 DB2 1 Wed Mar 17, 2010 12:25 pm
No new posts Upgrading to PL/I enterprise compiler... dick scherrer PL/I & Assembler 13 Tue Aug 04, 2009 2:47 am


Facebook
Back to Top
 
Mainframe Wiki | Forum Rules | Bookmarks | Subscriptions | FAQ | Tutorials | Contact Us