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Cannot kill ioscan

 
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Ratzie
Super Advisor

Cannot kill ioscan

I have a issue with a scsi disk. Yes, it will be replaced, so that is not an issue. But, I have a process that I cannot kill.

I ran an ioscan and can not kill the process.
The server will not be rebooted so it will not wipe out that process.
kill -9 does not work either.

Thanks for the help.
3 REPLIES 3
Florian Heigl (new acc)
Honored Contributor
Solution

Re: Cannot kill ioscan

You can't kill anything that's currently doing some io in the kernel, but it means no harm either.

Just leave it hanging, it will resume when the new harddrive was inserted.

(We've been used to it when working with EMC^2 Clariions :)
yesterday I stood at the edge. Today I'm one step ahead.
A. Clay Stephenson
Acclaimed Contributor

Re: Cannot kill ioscan

It's waiting on an i/o request to complete and that is a higher priority event that responding to a signal (kill). If this is a hot-plug disk, you can probably remove the disk (which will interrupt the i/o request) and then ioscan will terminate. Don't be afraid to yank a hot-plug disk especially if it's mirrored, that triggers a SCSI bus reset and that can be considered a normal (more or less) event. If it's not mirrored, you are dead in the water anyway -- at least with respect to this disk.
If it ain't broke, I can fix that.
Geoff Wild
Honored Contributor

Re: Cannot kill ioscan

You might also be able to renice the process at a lower priority...

Otherwise, just leave it - no harm done - wait for disk replacement and/or reboot.

Rgds...Geoff
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