At 09:09 PM 11/30/2007, Trevor Talbot wrote:
The controller always exists, so it's not moving a point of failure; if a controller goes you've lost the disk anyway.
Anecdotal - I have found "smart" raid controllers to fail more often than dumb scsi controllers (or even SATA/PATA controllers), and some seem more failure prone than semi-decent operating systems.
Not recommending people turn fsync off, but the O/S "always" exists, if it is that flaky, you might lose data anyway, so pick a better O/S.
What's more likely in most places is somebody powering down the server abruptly, and then fsync=off could hurt :).
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