Solved

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

Posted on 2012-04-05
3
946 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 76

Expert Comment

by:arnold
Comment Utility
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
Comment Utility
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 76

Accepted Solution

by:
arnold earned 500 total points
Comment Utility
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

Highfive + Dolby Voice = No More Audio Complaints!

Poor audio quality is one of the top reasons people don’t use video conferencing. Get the crispest, clearest audio powered by Dolby Voice in every meeting. Highfive and Dolby Voice deliver the best video conferencing and audio experience for every meeting and every room.

Join & Write a Comment

FreeBSD on EC2 FreeBSD (https://www.freebsd.org) is a robust Unix-like operating system that has been around for many years. FreeBSD is available on Amazon EC2 through Amazon Machine Images (AMIs) provided by FreeBSD developer and security office…
AWS Glacier is Amazons cheapest storage option and is their answer to a ‘Cold’ storage service.  Customers primarily use this service for archival purposes and storage of infrastructure backups.  Its unlimited storage potential and low storage cost …
Learn how to navigate the file tree with the shell. Use pwd to print the current working directory: Use ls to list a directory's contents: Use cd to change to a new directory: Use wildcards instead of typing out long directory names: Use ../ to move…
In a previous video, we went over how to export a DynamoDB table into Amazon S3.  In this video, we show how to load the export from S3 into a DynamoDB table.

772 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

Need Help in Real-Time?

Connect with top rated Experts

11 Experts available now in Live!

Get 1:1 Help Now