ZFS file corruption problem
Bob Friesenhahn
bfriesen at simple.dallas.tx.us
Wed Mar 14 14:03:27 UTC 2012
On Wed, 14 Mar 2012, Mark Murawski wrote:
>
> Why would the whole pool now become available upon access to a bad file?
A disk drive (or HBA) may be hanging (e.g. endless retries) when the
bad file is accessed. This is a common problem with consumer disks or
HBAs which believe they are the top level authority when it comes to
data integrity. Zfs itself does not include any timers to decide to
stop waiting. Zfs depends on the lower-level OS & drivers to decide
to stop waiting on a stalled device.
Bob
--
Bob Friesenhahn
bfriesen at simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/
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