I came up with 17 x 3390-27's (30051 Cyl). The ESS will let you know exactly how many when you start to define them. 32 alias addresses for 17 -27 base addresses is too small for me. If you don't have an addressing problem, you should define some more. Can you define a new LCU for these -27 devices? That should get you around any addressing shortages.
John -- snip -- I have a 2105-F20 with 8 drawers of 18.2Gb disks. One of the current drawer pair uses 256 devno's for base and alternate volumes, the other 3 drawer pairs uses only 128 of the addresses. I know, lots of small volumes, but we were migrating from MP3000 internal disk and an RVA that only supported 3390-3's when we got the 2105. There are 8 ESCON channels to the box, no FICON. I'm adding 2 drawers of 72.8Gb drives. I think I'll have to generate 16 base devices per drawer, allocate 15 3390-27's and have some a odd sizeed 16th device. Does that sound correct? I'll have 32 addresses for alternates for each drawer. (I have 6 38 address holes in the current config). -- snip -- ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
