topic Re: Show Qlogic HBAs WWIDs on Redhat? in Operating System - Linux

Show Qlogic HBAs WWIDs on Redhat?

Alzhy — Thu, 12 Nov 2009 18:47:23 GMT

Aside from installing SANsurfer, are there other ways for the admin to show properties of the installed Qlogic HBAs?

TIA.

Re: Show Qlogic HBAs WWIDs on Redhat?

Steven E. Protter — Thu, 12 Nov 2009 19:14:19 GMT

Shalom,

hwbrowser can provide limited information on QLogic HBA's but is not included on all versions of the Red Hat Enterprise Linux.

The PSP package for also includes utilites such as hp_rescan that include limited capabilities.

SEP

Re: Show Qlogic HBAs WWIDs on Redhat?

Alzhy — Thu, 12 Nov 2009 19:19:40 GMT

cd /sys/class/fc_host
ls
host1 host2 host3 host4

cd /sys/class/fc_host/host1
cat node_name portname port_id

And it appears from said FC directory you can even initiate LIPs, scans, etc..

Re: Show Qlogic HBAs WWIDs on Redhat?

Ivan Ferreira — Thu, 12 Nov 2009 19:23:26 GMT

Check:

http://blog.evad.info/2009/07/27/ibm-ds4000-storage-arrays-and-red-hat-enterprise-linux-5/

Section:

"Find out your HBA WWID"

Re: Show Qlogic HBAs WWIDs on Redhat?

John McNulty_2 — Fri, 13 Nov 2009 11:53:46 GMT

On Redhat 5 do:

# systool -c fc_host -v

If you want to see info about the WWIDs on the other end of your link do:

# systool -c fc_transport -v

Another useful tip: you can use the port_id number to find out the Domain ID and port number of the FC Switch you're connected to. The first two numbers are the ID and the next two the port. Just convert from hex to decimal. e.g.

port_id = "0x2C1000"

# bc
ibase=16
2C
44 <-- domain ID
11
17 <-- port number

There are a couple of Redhat knowledgebase articles on this subject you might like to read too.

http://kbase.redhat.com/faq/docs/DOC-19446

http://kbase.redhat.com/faq/docs/DOC-19446

http://kbase.redhat.com/faq/docs/DOC-9937

Re: Show Qlogic HBAs WWIDs on Redhat?

John McNulty_2 — Fri, 13 Nov 2009 12:04:14 GMT

Whoops .. typo

port_id = "0x2C1100"