> From: Timothy Coalson [mailto:tsc...@mst.edu]
> Sent: Friday, October 19, 2012 9:43 PM
> 
> A shot in the dark here, but perhaps one of the disks involved is taking a 
> long
> time to return from reads, but is returning eventually, so ZFS doesn't notice
> the problem?  Watching 'iostat -x' for busy time while a VM is hung might tell
> you something.

Oh yeah - this is also bizarre.  I watched "zpool iostat" for a while.  It was 
showing me :
Operations (read and write) consistently 0
Bandwidth (read and write) consistently non-zero, but something small, like 
1k-20k or so.

Maybe that is normal to someone who uses zpool iostat more often than I do.  
But to me, zero operations resulting in non-zero bandwidth defies logic.

_______________________________________________
zfs-discuss mailing list
zfs-discuss@opensolaris.org
http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
              • ... Jim Klimov
              • ... Edward Ned Harvey (opensolarisisdeadlongliveopensolaris)
              • ... Jim Klimov
              • ... Edward Ned Harvey (opensolarisisdeadlongliveopensolaris)
              • ... Edward Ned Harvey (opensolarisisdeadlongliveopensolaris)
              • ... Jim Klimov
              • ... Jim Klimov
              • ... Jim Klimov
              • ... Edward Ned Harvey (opensolarisisdeadlongliveopensolaris)
              • ... Timothy Coalson
              • ... Edward Ned Harvey (opensolarisisdeadlongliveopensolaris)
              • ... Timothy Coalson
  • Re: [zfs-discuss]... matthew patton

Reply via email to