Disk went down, now some processes are stuck

[Dirk Mika]

Hi everybody,

one of some older disks attached to a L1000 went down, wich is not a problem because nothing important were on it. But i've some processes trying to access a filesystem on that drive which are hanging for hours now.

They wont die on a kill -9 since they are stalled in a i/o-call.

Any idea how to get rid of them, without rebooting the whole system?

Reagrds
Dirk Mika

[Patrick Wallek · Accepted solution]

It sounds like the disk wasn't mirrored. If that is the case, there is nothing you can do to get rid of those processes. Until they complete their IO, which they won't do because of the disk, they will just sit there.

[Pete Randall]

The only way other than reboot is to satisfy the I/O request by putting a file system in place. If you have some spare room, you could make a logical volume and mount it on the same mount point that these processes were trying to access. That may do it.


Pete

[Geoff Wild]

I had something similiar happen - a disk failed - and processes were tied to a file system that was mounted under that disk - I couldn't even shutdown the box - let alone kill processess....had to reset the box hard...

If a fuser -Cku doesn't work - then you will more then likely have to reboot...

Rgds...Geoff

[Dirk Mika]

The disk wasn't mirrored, and there is no way to mount a different logical volume on the same mountpoint, because i can't unmount the defect one. :-(

I've tried fuser -k but it didn't work.

So, i will do it the hard way.

Thanks to all of you.

Regards
Dirk mika