How can I retrieve the mount count for an ext3 volume?

Dave Johnson dave-gnhlug-list at davej.org
Tue Oct 6 18:25:44 EDT 2009


Ben Scott writes:
> On Tue, Oct 6, 2009 at 10:43 AM, Tom Buskey <tom at buskey.name> wrote:
> > And RAIDs should be scrubbed periodically.
> 
>   Modern RAID controllers usually feature something called "patrol
> read", which reads all the blocks on the physical disks in the
> background, when otherwise idle.
> 
>   Is there a similar feature in Linux's RAID implementation?

Yes, md has a 'check' action that you can issue to the kernel to have
it run a RAID consistancy check.

mdadm issues this once a week (by default)

you can also issue this manually with something like:
$ echo check > /sys/block/md0/md/sync_action

-- 
Dave


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