HPE Community
Operating System - Linux
1819791 Members
3274 Online
109607 Solutions
New Discussion юеВ

checking disk path

 
Ronald Y. Salem
Advisor

тАО07-14-2008 03:51 AM

тАО07-14-2008 03:51 AM

checking disk path

Hi All,
I am new in Linux and recently I added new LUNs to Linux machine from EVA4000 SAN.

Can you pls let me know how to check the path of the disks (if it's dual path) presented from linux machine? What's the command to do it?

Any help would be appreciated.
Thanks.
0 Kudos
Reply
5 REPLIES 5
Ivan Ferreira
Honored Contributor

тАО07-14-2008 05:11 AM

тАО07-14-2008 05:11 AM

Re: checking disk path

You can use lssd, fdisk -l and ensure that you have a multipath enabled driver for your HBA.
Por que hacerlo dificil si es posible hacerlo facil? - Why do it the hard way, when you can do it the easy way?
0 Kudos
Reply
Court Campbell
Honored Contributor

тАО07-14-2008 05:25 AM

тАО07-14-2008 05:25 AM

Re: checking disk path

You can install lsscsi. And then issue the command

# lsscsi -g --transport

You should see duplicate wwn's for the luns. Then if you need want to do mulitpathing you can install dm-multipath.
"The difference between me and you? I will read the man page." and "Respect the hat." and "You could just do a search on ITRC, you don't need to start a thread on a topic that's been answered 100 times already." Oh, and "What. no points???"
0 Kudos
Reply
Ronald Y. Salem
Advisor

тАО07-15-2008 08:57 PM

тАО07-15-2008 08:57 PM

Re: checking disk path

Hi Evan,
May I know how to check if multi path is enable? I am really new with Linux.

I try to execute the command sbin/fdisk -l but nothing been displayed. Thanks.
0 Kudos
Reply
Court Campbell
Honored Contributor

тАО07-16-2008 09:40 AM

тАО07-16-2008 09:40 AM

Re: checking disk path

You should install dm-multipath. Here is a brief overview:

http://www.redhat.com/docs/manuals/csgfs/browse/4.6/DM_Multipath/MPIO_description.html
"The difference between me and you? I will read the man page." and "Respect the hat." and "You could just do a search on ITRC, you don't need to start a thread on a topic that's been answered 100 times already." Oh, and "What. no points???"
0 Kudos
Reply
skt_skt
Honored Contributor

тАО07-25-2008 05:55 PM

тАО07-25-2008 05:55 PM

Re: checking disk path

do you use any path management s/w like power path/secure path?

Powermt display dev=all might help to list all LUNs with paths including the new one
0 Kudos
Reply
The opinions expressed above are the personal opinions of the authors, not of Hewlett Packard Enterprise. By using this site, you accept the Terms of Use and Rules of Participation.