Well, you have to move out enough data to cover the number of TB that you're reconfiguring. For the most part, the Rank/array has to have enough contiguous data to carve out the volumes. In other words, if you want to carve out 1 TB of mod-9 volumes, then you have to have 1 tb of contiguous free space on the rank. As for ease to get this done, that depends on the level of microcode that's on your box.
I know that currently, some very large volumes can be created but I don't know how this relates to the amount of space on a rank. Thanks, Hervey ----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@bama.ua.edu] On Behalf Of O'Brien, David W. (NIH/CIT) [C] Sent: Thursday, January 26, 2012 10:53 AM To: IBM-MAIN@bama.ua.edu Subject: 3390s on SAN? There is an internal proposal to carve several TB of dasd from one of our non-mainframe depts. And use it to replace our aging HDS DASD. Question: How easy/difficult is this to accomplish? We re-configured an array from 3390 mod-3s to mod 27/50s but the entire array needed to be cleared of data. I'm assuming the same will be true in this case. I'm also assuming that the disks will need to be re-modeled (I am probably not using the correct terminology) to be mainframe compliant. Are my assumptions correct? Thank You, Dave O'Brien NIH Contractor ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: INFO IBM-MAIN
