Re: Resizing disks - ASM mulpath

Posted by ErmanArslansOracleBlog on
URL: http://erman-arslan-s-oracle-forum.114.s1.nabble.com/Resizing-disks-ASM-mulpath-tp7113p7122.html

Okay good.
In multipath output, you already see the device names :

for ex here ->

PRD-ARCH01 (360002ac0000000000000006b0001c9fc) dm-19 3PARdata,VV
size=100G features='1 queue_if_no_path' hwhandler='1 alua' wp=rw
`-+- policy='round-robin 0' prio=50 status=active
  |- 2:0:0:24 sdo  8:224   active ready running
  |- 1:0:1:24 sdec 128:64  active ready running
  |- 2:0:1:24 sdbv 68:144  active ready running
  `- 1:0:0:24 sdgj 131:240 active ready running

This means your multipath device named PRD-ARCH01 consisting of 4 100G disks, which are sdo,sdec,sdby,sdgj..
There are also scsi ids there ->  for ex: sdo ->  2:0:0:24 .
This means Your sdo disk is coming from 2nd scsi host, Channel :0 Id: 02 Lun: 24..

Analyze the whole output of multipath like this..

Tell them to your SAN admin.

What else do you need?