On 2016-08-09 06:02, Gim Leong Chin wrote:
> Drives connected to RAID controllers with battery backed cache should
> have their caches "disabled" (they are really set to write through mode
> instead). By the way, I found out in lab testing that 7200 RPM SATA
> drives suffer a big performance loss when doing sequential writes in
> cache write through mode.<http://oss.sgi.com/mailman/listinfo/xfs>
If you disable the disk internal cache, as a consequence you also
disable the disk internal write optimizations. It has to be much slower
at writing. It seems to me obvious.
--
Cheers / Saludos,
Carlos E. R.
(from 13.1 x86_64 "Bottle" at Telcontar)
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