topic offline a path RHEL5 in Operating System - Linux

offline a path RHEL5

ossupport55 — Thu, 24 Sep 2009 05:51:48 GMT

hi guys,

I need to offline one path form the OS and check how the multipath is behaving. How could this be done ?. I don't need to try something like SANsurfer as we have not got this on all the machines.
cheers

Re: offline a path RHEL5

Rob Leadbeater — Thu, 24 Sep 2009 11:16:17 GMT

Hi,

I'm not sure this can be done from Linux... If it can, the details will depend on the type of HBAs that are in the server.

Assuming you don't have physical access to the server (which would enable you to simply pull a fibre) then probably the next easiest thing would be to get the relevant SAN switch ports disabled.

Hope this helps,

Regards,

Rob

Re: offline a path RHEL5

Ivan Ferreira — Thu, 24 Sep 2009 13:55:08 GMT

You could run the portdisable command on the san switch to offline one HBA.

Re: offline a path RHEL5

skt_skt — Thu, 24 Sep 2009 14:17:19 GMT

Powerpath commands helps. I have not tried this myslef so far.

In the "PowerPath Family CLI and System Messages Reference Guide 5.2 and 5.3 A03" on page 16 I found 2 commands to disble ports:
- powermt disable hba
- powermt set port_disable