[TriLUG] general RAID questions

[Kevin Otte]

On my Ubuntu 10.04 LTS server, there is a cron job that does this for me 
on the first Sunday of every month for all running arrays.

On 12/04/2011 10:17 AM, David Brain wrote:
> Hi,
>
> I run this:
>
>   echo check>>  /sys/block/md0/md/sync_action
>
> Weekly - forces a 'fake' rebuild of the array.  This means that every
> block of the drives are read, which will pick up (hopefully) bad
> drives early and mitigate the possibility of a dual drive failure on
> rebuild.  Hardware RAID controllers typically have a similar function
> ('patrol read' or somesuch).
>
> David.