A few thoughts for you. 1: The storage team defined 1 of the 4 MCDS to take up a full M27. The others are defined to take up a full M9. I'm not sure why they did that. 2: If you have several lpars making updates to the MCDS you might consider RLS. It is my understanding that it will help with performance accessing the MCDS datasets.
Thanks.. Paul Feller AGT Mainframe Technical Support -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Hervey Martinez Sent: Tuesday, December 18, 2018 1:05 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: Multi-volume HSM MCDS [EXTERNAL] Ok, is there a limit to how big it can be? We have the file under SMS. ________________________________ From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> on behalf of Chuck Kreiter <kreiter_ibm-m...@twc.com> Sent: Tuesday, December 18, 2018 1:33 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: Multi-volume HSM MCDS It doesn't need to be RLS. -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Hervey Martinez Sent: Tuesday, December 18, 2018 12:51 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Multi-volume HSM MCDS The MCDS is taking up a full mod-9 and it is growing. I'm looking at expanding the file to be multi-volume and wondering if this can be done without converting CDS to RLS? Done some searches but don't really come up with anything. How would this be expanded to multi-volume. Would the definition just be, let's say 20,000 cylinders and make sure there are two mod9 volumes available? One option would be to move it to a Mod-27 but not sure if such a volume is available at our DR site. Anybody have any ideas? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- Please note: This message originated outside your organization. Please use caution when opening links or attachments. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
