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Disable SAN on boot up

brian_31
Super Advisor

Disable SAN on boot up

since we suspect some SAN issues blocking the boot up times we want to disable the initialization services (fc_td). Is it OK if i move the start up script alone? what would be the best way to do this? We are running 11.0.

Thanks

Brian
4 REPLIES
Steven E. Protter
Exalted Contributor

Re: Disable SAN on boot up

Shalom,

You will need to physically unplug the fiber cables between the SAN and the system.

That will insure there is no connection. These services can be disabled, but that is not a complete test of SAN based troubles.

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Steven E Protter
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brian_31
Super Advisor

Re: Disable SAN on boot up

I understand. But since the reboot is schduled today and we cannot unplug anything now, atleast what is best other alternative? And in case we disable this start up, once the server comes up and we do /sbin/init.d/fc_td start should we able to see the luns? any gotchas? Any other additional scripts i will have disable in addtion to fc_td to get the SAN disabled?

Thanks

Brian

Torsten.
Acclaimed Contributor

Re: Disable SAN on boot up

I have no idea about your SAN issues, but if you cannot pull the cables - why not disable the switch ports?

Hope this helps!
Regards
Torsten.

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sujit kumar singh
Honored Contributor

Re: Disable SAN on boot up

hi


for the fc Ports as /dev/td0 ..

you can use the command

#fcmsutil /dev/td0 [-f] disable

somewhere in startup script for the system or can run manually at system startup.

This disables the corresponding FC port and makes that offline.

more man fcmsutuil.


regards
sujit