Re: RAID-5 creation crashes when files system installed while recovery going on

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On Wed, June 24, 2009 8:35 am, Tirumala Reddy Marri wrote:
> All,
>  I started RAID-5 creation using mdadm command. While recovery is
> happening I tried to install file system . I see intermittent crash   .
> And crash doesn't happen at fixed location. Any clue what could be the
> problem? How does the read/writes to MD driver handled while RAID-5 is
> under building.

Can you describe exactly what you mean by "crash" ??

The raid5 driver normally has no problems handling writes while
it is resyncing.  It has a 'stripe_cache' which is used to
synchronise regular IO with resync IO.

NeilBrown

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