On 2011-11-29T12:36:39, Dimitri Maziuk <[email protected]> wrote:
> If you repeatedly try to re-sync with a dying disk, with each resync
> interrupted by i/o error, you will get data corruption sooner or later.
No, you shouldn't. (Unless the drive returns faulty data on read, which
is actually a pretty rare failure mode.)
You might get all sorts of hangs etc, but that's a different story.
In general, the auto-recovery of the md devices is not necessarily a
good idea for real JBODs. I added it for a customer where each MD mirror
was on a different very high-end array - they didn't want to protect
against disk corruption, but recover from connectivity outages that
would kick the device from the mirror group.
Regards,
Lars
--
Architect Storage/HA
SUSE LINUX Products GmbH, GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer, HRB
21284 (AG Nürnberg)
"Experience is the name everyone gives to their mistakes." -- Oscar Wilde
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