On 07/10/2019 04:41 PM, Wols Lists wrote:
On 10/07/19 09:35, Xiao Ni wrote:
It can create raid device on dm integrity device. So raid can fix the
silent data corruption
automatically itself. For example a raid1 with two members A and B. When
there are some
data corruption on A disk, the read from A will fail, because dm
integrity return error to
raid1. At this time, raid1 can fix this automatically.
Can you point me at some documentation on how to use this? This should
go in the raid wiki, as it sounds like it's something that users ought
to put in the stack, and I never knew about it.
Cheers,
Wol
Yes. I learned about this from this article
https://securitypitfalls.wordpress.com/2018/05/08/raid-doesnt-work/
As this article pointed, raid6 has problem to support this. The patch
which I sent recent should fix this problem.
Regards
Xiao
