[dm-devel] Proper way to test RAID456?

[Lukas Straub]

CC'ing linux-raid mailing list, where md raid development happens.
dm-raid is just a different interface to md raid.

On Fri, 7 Jan 2022 10:30:56 +0800
Qu Wenruo <quwenruo.btrfs at gmx.com> wrote:

> Hi,
>
> Recently I'm working on refactor btrfs raid56 (with long term objective
> to add proper journal to solve write-hole), and the coverage of current
> fstests for btrfs RAID56 is not that ideal.
>
> Is there any project testing dm/md RAID456 for things like
> re-silvering/write-hole problems?
>
> And how you dm guys do the tests for stacked RAID456?
>
> I really hope to learn some tricks from the existing, tried-and-true
> RAID456 implementations, and hopefully to solve the known write-hole
> bugs in btrfs.
>
> Thanks,
> Qu
>
>
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>



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