XFS Resiliency to the disk errors.

["Zak, Semion" <SZak@xxxxxxx>]

Hi,
 
We are studying possibility to use XFS with cheap (not too reliable)
discs, so we have some questions:
 
What in XFS is done to survive the disk errors (bad sectors)?
I know about superblock duplication in every AG. What else?
 
What is XFS behavior in case of the disk errors  (panic/no mount/partial
data access)?
 
What could be done to restore?
If  zero bad sector/dump to other device/format/restore will help? 
 
Thanks,
 
Semion.


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