Re: [PATCH] secure write for RAID1

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On 2005-04-23T22:48:01, "Peter T. Breuer" <ptb@xxxxxxxxxxxxxx> wrote:

> This patch (completely untested of course - what, me?) makes RAID1 write
> to all components of a raid-1 array, else return error to the write
> attempt, when one component cannot be written.

Would it make sense to generalize and introduce a "write quorum" for
arrays with more than 2 mirrors - ie, must be committed to at least n
disks?

This would also apply to RAID6, actually. One could say that it needs to
be committed to N-1 disks; as RAID6 could cope with N-2 failures,
redundancy would still be preserved.


Sincerely,
    Lars Marowsky-Brée <lmb@xxxxxxx>

-- 
High Availability & Clustering
SUSE Labs, Research and Development
SUSE LINUX Products GmbH - A Novell Business

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