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Re: SATA write performance problems (on HP MicroServer)
On Tue, Jan 1, 2013 at 7:00 PM, Michael L. Hitch
> b) I wouldn't think so. In fact, it may possibly reduce the likelyhood of
> a corrupted file system after a crash. With write caching enabled, you may
> get more of the disk buffers written to the drive cache rather than sitting
> in memory. Anything in memory will be gone after a crash that is unable to
> flush any buffers. If the data gets to the drive cache, it should make it
> to the disk eventually. Now a crash due to a power failure is a different
> story. Anything in the drive's cache would be lost (but then so would
> anything sitting in memory). Write caching could also disrupt any ordered
> writes done by the OS, which may get data written to the disk in an order
> that could lead to corruption.
Doesn't this depend on filesystem journaling?
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