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SubjectRe: raid is dangerous but that's secret (was Re: [patch] ext2/3: document conditions when reliable operation is possible)
On Sun 2009-08-30 02:01:10, Christian Kujau wrote:
> On Sun, 30 Aug 2009 at 09:51, Pavel Machek wrote:
> > > give system administrators. It's better than the fear-mongering
> > > patches you had proposed earlier, but what would be better *still* is
> > > telling people why running with degraded RAID arrays is bad, and to
> > > give them further tips about how to use RAID arrays safely.
> >
> > Maybe this belongs to Doc*/filesystems, and more detailed RAID
> > description should go to md description?
> Why should this be placed in *kernel* documentation anyway? The "dangers
> of RAID", the hints that "backups are a good idea" - isn't that something
> for howtos for sysadmins? No end-user will ever look into

The fact that two kernel subsystems (MD RAID, journaling filesystems)
do not work well together is surprising and should be documented near
the source.
(cesky, pictures)

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