11-03-2000 02:58 PM
Solved! Go to Solution.
11-03-2000 04:25 PM
The MPE system configuration is relatively simple: use the SYSGEN ID of SYMMETRIX for each logical unit number (LUN, or LDEV), and the path for that LUN.
The binding of the discs into LUNs is more complicated-- unless you can get details from other forum members, I'd suggest you ask EMC for help. HP no longer sells EMC arrays (replaced with the XP256/512-- see http://www.enterprisestorage.hp.com/products/disk_
11-06-2000 06:54 AM
We have been using EMC products on our 3000's for almost 4 years. Only issue is getting data re-loaded from one disc type to another. Attached is a sample of how we
have configured our EMC disc. This disc is part of a 'RAID-S' configuration. It is currently in a '3700' frame. Please note that you will have to work closely with EMC
to assign the path numbers. Our preferrence was to have 8 discs per channel and use
0-6 , and 8 for the addresses.
Another good source of information is firstname.lastname@example.org, both HP and EMC engineers
monitor that list.
io> ld 30
LDEV: 30 DEVNAME: OUTDEV: 0 MODE:
ID: SYMMETRIX RSIZE: 128 DEVTYPE: DISC
PATH: 8/4/44.0.0 MPETYPE: 4 MPESUBTYPE: 2
CLASS: DISC SPOOL
11-07-2000 06:37 PM
We also assign no more than 8 drives per FW-SCSI , and no two LUN's on any one physical drive will be addressed on the same I/O channel - for performance reasons.
One of the most attractive and useful features we've discovered is the "phone home" capability of the Symmetrix. If the on-board diagnostics detect a problem, the unit will dial up the EMC global response center and alert an engineer. If necessary, a local CE will be dispatched to attend to the issue. We've experienced two such events since 10/97, and we've not known a problem existed until the CE called to tell us he was on his way. No unplanned downtime as a result -- yet. :-)