?
Solved

How to find out the emc Clariion LUNS not in use ?

Posted on 2012-04-05
3
Medium Priority
?
981 Views
Last Modified: 2012-09-05
Hi Experts,

Has any body worked on this ? I need some help to figure out - How to find out the EMC Clariion LUNS on RHEL 5.7 & Solaris 10 so that we can get rid of those.

Thanks a lot Experts :-)
0
Comment
Question by:rajsolaris
  • 2
3 Comments
 
LVL 82

Expert Comment

by:arnold
ID: 37814569
You should check the navisphere to see which LUNs are allocated and to which hosts.
Then you can check the hosts.
On redhat you have to look at /proc/scsi/<hba>
There are different tools
fdisk -l
format on Solaris will list all the disks it sees local and San based.
Each system will have the LUN info which you then have to confirm it is not n se, or stop using it, and then unallocated from the host.
https://community.emc.com/thread/114410 references analyzing LUN performance. Using a similar tact if the statistics do not change, it will suggest that te LUN might not be actively used which you MUST confirm.
0
 

Author Comment

by:rajsolaris
ID: 37817109
Thanks for getting back arnold.
I can not access emc218359 in the powelink - looks like need to be a partner OR customer
I do not have an account having that previlege.

We have powermt installed on both solaris & Linux RHEL 5.7 so I ran multiple commands like

# powermt display dev=all

Okay, I just got a tip from my friend for Linux -

# pvs 2>/dev/null
# powermt display dev=emcpowerat
and check the status in the pvs command. But I am not sure on solaris.
we have svm installed on solaris

Thanks again.
0
 
LVL 82

Accepted Solution

by:
arnold earned 2000 total points
ID: 37817140
Within navisphere on the SAN, can you see which LUNS are allocated to each host?
do you have powerpath on either/both to manage the multipathing or you use native linux multipathing

http://www.expertslogin.com/linux-administration/show-luns-allocated-on-linux/
PVS is if you use LVM filesystems on the LUNS.
Depending on what the servers do, your allocated LUNs could be used in raw form.
There are many variations.

Solaris, format should list all the disks that are seen note the make of the disk.
powermt works the same way.
0

Featured Post

Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

How much do you know about the future of data centers? If you're like 50% of organizations, then it's probably not enough. Read on to get up to speed on this emerging field.
Disk errors can be the source of sundry problems for the Exchange server, the most common one being that the database fails to mount.
This video shows how to set up a shell script to accept a positional parameter when called, pass that to a SQL script, accept the output from the statement back and then manipulate it in the Shell.
In this video, Percona Solutions Engineer Barrett Chambers discusses some of the basic syntax differences between MySQL and MongoDB. To learn more check out our webinar on MongoDB administration for MySQL DBA: https://www.percona.com/resources/we…

569 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question