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SubjectRe: Kernel 2.6.17 and RAID5 Grow Problem (critical section backup)
>> Hm, what's superblock 0.91? It is not mentioned in mdadm.8.
>>
>
> Not sure, the block version perhaps?
>
Well yes of course, but what characteristics? The manual only lists

0, 0.90, default
Use the original 0.90 format superblock. This format
limits arrays to 28 componenet devices and limits compo■
nent devices of levels 1 and greater to 2 terabytes.

1, 1.0, 1.1, 1.2
Use the new version-1 format superblock. This has few
restrictions. The different subversion store the
superblock at different locations on the device, either
at the end (for 1.0), at the start (for 1.1) or 4K from
the start (for 1.2).

No 0.91 :(
(My mdadm is 2.2, but the problem remains in 2.5.2)


Jan Engelhardt
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