Re: [patch] ext2/3: document conditions when reliable operation ispossible

[Pavel Machek]

Hi!

>> Ok, can you help? Having a piece of MD documentation explaining the
>> "powerfail nukes entire stripe" and how current filesystems do not
>> deal with that would be nice, along with description when exactly that
>> happens.
>
> Except of course for the inconvenient detail that a power
> failure on a degraded RAID 5 array does *NOT* nuke the
> entire stripe.

Ok, you are right. It will nuke unrelated sector somewhere on the
stripe (one that is "old" and was not recently written) -- which is
still something ext3 can not reliably handle.
									Pavel

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