Yes, because z/OS (well, the allocation routines anyway) knows nothing of the back-end storage. As far as z/OS is concerned its data is still sitting on SLED 3390 volumes so things like free extent sizes and so on still matter.
Rex -----Original Message----- From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of Tim Hare Sent: Saturday, June 20, 2020 9:33 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: [External] Re: dfdss equivalent to fdr map Question: does it really matter with a volume that's a virtual thing implemented on a RAID array? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN The information contained in this message is confidential, protected from disclosure and may be legally privileged. If the reader of this message is not the intended recipient or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any disclosure, distribution, copying, or any action taken or action omitted in reliance on it, is strictly prohibited and may be unlawful. If you have received this communication in error, please notify us immediately by replying to this message and destroy the material in its entirety, whether in electronic or hard copy format. Thank you. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
