Messages in this thread | | | Subject | Re: Linux SATA RAID FAQ | From | Xavier Bestel <> | Date | Sun, 15 Aug 2004 22:54:02 +0200 |
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Le sam 14/08/2004 à 23:49, Alan Cox a écrit : > > > * Caching > > Is it battery backed ? If it is battery backed then its useful, if not > then it becomes less useful although not always. The i2o drivers have > some ioctls so you can turn on writeback caching even without battery > backup. While this is suicidal for filesytems its just great for swap..
Isn't sufficient to have it do ordered writes ? If you power your machine off, you'll have things half-written anyway, the only thing important with journaled filesystems (and raid5 arrays) is to have writes staying between barriers.
Xav
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