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SubjectRe: [patch] ext2/3: document conditions when reliable operation is possible
Once upon a time, Theodore Tso  <tytso@mit.edu> said:
>I'll note, BTW, that AIX uses a journal to protect against these sorts
>of problems with software raid; this also means that with AIX, you
>also don't have to rebuild a RAID 1 device after an unclean shutdown,
>like you have do with Linux MD. This was on the EVMS's team
>development list to implement for Linux, but it got canned after LVM
>won out, lo those many years ago.

See mdadm(8) and look for "--bitmap". It has a few issues (can't
reshape an array with a bitmap for example; you have to remove the
bitmap, reshape, and re-add the bitmap), but it is available.
--
Chris Adams <cmadams@hiwaay.net>
Systems and Network Administrator - HiWAAY Internet Services
I don't speak for anybody but myself - that's enough trouble.


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