GRS ring or GRS star? -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Joe Owens Sent: Wednesday, April 5, 2017 11:44 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: RLS for catalogs
We are experiencing general issues with catalog contention, seeing a lot of SYSIGGV2 enqueue waits. We have shared DASD between multiple LPARS in a sysplex I was wondering if anyone had experience of using RLS for catalogs, as introduced with with Z/OS 2.1? In particular, anyone using this with MIM. MIM has to be initialised before RLS can start (several references to this in APARS). We use RLS with endevor VSAM datasets, and this is not an issue, but as catalog access is so basic to the system, I am thinking we might have to initialise MIM before JES (and have it's parmlib in the master catalog), to avoid a chicken and egg situation. Just wondering if anyone else has considered this. Regards, Joe Owens ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ::DISCLAIMER:: ---------------------------------------------------------------------------------------------------------------------------------------------------- The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only. E-mail transmission is not guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or may contain viruses in transmission. The e mail and its contents (with or without referred errors) shall therefore not attach any liability on the originator or HCL or its affiliates. Views or opinions, if any, presented in this email are solely those of the author and may not necessarily reflect the views or opinions of HCL or its affiliates. Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of this message without the prior written consent of authorized representative of HCL is strictly prohibited. If you have received this email in error please delete it and notify the sender immediately. Before opening any email and/or attachments, please check them for viruses and other defects. ---------------------------------------------------------------------------------------------------------------------------------------------------- ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
