Messages in this thread | | | Date | Tue, 25 Aug 2009 08:57:00 -0500 | From | Chris Adams <> | Subject | Re: [patch] ext2/3: document conditions when reliable operation is possible |
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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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