> 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
> 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.
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