European System z Technical Conference - End of Day 2
MartinPacker 11000094DH Comment (1) Visits (1996)
Paul Rogers: z/OS Releases 8, 9 and Beyond
This is very much an overview presentation. Other sessions go into more detail.
Paul provided a salutary reminder that z/OS Release 6 goes out of service at the end of September. We're now supporting only the current release and the 2 previous ones.
APAR OA20314 (in support of zNALC) allows you to IPL with LICENSE=ZNALC rather than hardcoding the LPAR's name according to the old NALC licencing convention (ZNALxxxx). zNALC is a big step forward in licencing, among other things allowing any modern System z server to participate.
Multiple subchannel sets (z9-109 only) is interesting in that it allows PAV aliases to be defined in the second subchannel set (SS0), freeing up addresses in SS0 (given the 64K limit). HyperPAV also (pardon the pun) addresses this. So the two functions together help greatly for large installations. (They work well together.)
Paul also presented on IBM's programme of simplification for z/OS System Management. One could argue this takes all the fun out of it. :-) But seriously I think it's an important strand going forward.
The Health Checker appears to be a big success story: When it was owned by the ITSO (the Red Books people) there were more than 3000 downloads. Now in z/OS Release 8 it's fully integrated into the base operating system.
The writing is clearly on the wall for HFS. zFS is obviously the way to go. Note: This can be a migration worthy of serious planning. Major helpers became available in z/OS Release 7. I'd not noticed, by the way, that RMF had support for zFS.
Paul mentioned briefly an enhancement to WLM-Managed JES2 Initiators in z/OS Release 8. I'm going to have to do more research before commenting further on this one.
Bob Rogers: z/OS R.8 and R.9 System Programmer Goody Bag
About 10% of his audience are already on z/OS Release 8. (He didn't need to ask who's on Release 9.)
On Release 8 some things struck me:
And on Release 9 (which has only been previewed at this point):
Kay Adams: What's New In zSubCapacity Pricing
Group Capacity Limits supported by z/OS Release 8 - on z9 EC and BC only. You can have multiple groups in the one machine. You can set individual LPAR limits as well as a group limit for the group it's in.
Kay also talked about zNALC, which became available a month ago. NALC and z/OS.e are withdrawn from marketing at the end of September 2007. I questioned whether Linux applications could be considered for certification, as well as UNIX and Windows. The good news is they can. This IS good news because lots of new applications are being built on the LAMP stack (where L stands for Linux). I'm thinking of eg blogging and wiki software.
It's not my area but z/VSE 4.1 introduces Subcapacity Licensing for VSE.
Pat Artis - MIDAWs
An excellent explanation that, though difficult material for most, gave a good explanation of what MIDAWs are and why they help when they do.
Me - Much Ado About CPU
I was very pleased to have around 50 people in my audience. And I got some good questions - mostly afterwards.