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Full Discussion: Finding the correct LUN
Operating Systems HP-UX Finding the correct LUN Post 302563246 by xtoverus1 on Monday 10th of October 2011 01:39:41 PM
Old 10-10-2011
Lightbulb Finding the correct LUN
I am using hp ux 11.31

Our SAN storage is being presented from an IBM XIV.

We have 3 HP servers (rx4640's), and the XIV has them setup in a cluster, so that when a disk is presented all 3 servers can see the new LUN.

I'm setting up a new VM on one of the HP servers. I have allocated a 34Gb disk to one of those servers, so that I can use it as the root volume for the new VM.

The problem is I can't tell which is the new disk as there are so many.

I'm a new admin for this environment, so I'm not familiar with which disks are for what servers.

I've run ioscan -fnC disk before and after the disk was presented, but it's difficult to tell which one is new.

Is there a best practice for this? I have the LUN ID, but I didnt see a corresponding number associated with the disks.
 

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LEARN ABOUT CENTOS

mkqdisk

mkqdisk(8)						      Quorum Disk Management							mkqdisk(8)

NAME

       mkqdisk - Cluster Quorum Disk Utility

WARNING

       Use of this command can cause the cluster to malfunction.

SYNOPSIS

       mkqdisk [-?|-h] | [-L] | [-f label] [-c device  -l label] [-d [-d ...]]

DESCRIPTION

       The mkqdisk command is used to create a new quorum disk or display existing quorum disks accessible from a given cluster node.

OPTIONS

       -c device -l label
	      Initialize  a new cluster quorum disk.  This will destroy all data on the given device.  If a cluster is currently using that device
	      as a quorum disk, the entire cluster will malfunction.  Do not run this on an active cluster  when  qdiskd  is  running.	 Only  one
	      device  on  the  SAN should ever have the given label; using multiple different devices is currently not supported (it is expected a
	      RAID array is used for quorum disk redundancy).  The label can be any textual string up to 127 characters - and is therefore  enough
	      space to hold a UUID created with uuidgen(1).

       -f label
	      Find the cluster quorum disk with the given label and display information about it.

       -L     Display information on all accessible cluster quorum disks.

       -d     Increase debugging level.  Specify multiple times for more information.  Currently, specifying more than twice has no effect.

SEE ALSO

       qdisk(5), qdiskd(8), uuidgen(1)

								     July 2006								mkqdisk(8)
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