Thread (22 messages) 22 messages, 6 authors, 2014-01-14

Re: RAID 10 far and offset on-disk layouts

From: Gionatan Danti <hidden>
Date: 2014-01-09 08:03:37

quoted
Interesting. Two question:
1) from which kernel the layout is the one depicted by Wikipedia?
2) it is possible, using mdadm, check what "far" layout is in use?
I cannot answer that. Neil Brown should know.

Best regards
Keld
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Hi all,
anyone with an update on these two questions?

I was thinking to use the kernel block trace facility to track disk 
access and infer the on-disk data structure, but I haven't tried for now.

On the other hand, I carefully looked at mdadm output, without finding 
anything related to physical block placing.

Any new advices on that regard?
Thanks.

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Danti Gionatan
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Assyoma S.r.l. - www.assyoma.it
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