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More on write caching

To: linux-xfs@xxxxxxxxxxx
Subject: More on write caching
From: Andrew Klaassen <ak@xxxxxxx>
Date: Fri, 6 Jul 2001 13:06:36 -0400
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I've asked about write caching before, and now I've got another
question.

If I've got write caching turned on, and the power goes out, do
I face the possibility of silent metadata corruption?

With ext2, the fsck would attempt to fix metadata problems on
bootup; on the other hand, with xfs, if write caching resulted
in a corrupted log, would the simple log replay that xfs does on
mount perhaps fail to catch possible metadata problems?

Andrew Klaassen


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