On 02/04/2011 04:35, Matthew Dillon wrote:
First, a power loss to the drive will cause the drive's dirty write cache
to be lost, that data will not make it to disk. Nor do you really want
to turn of write caching on the physical drive. Well, you CAN turn it
off, but if you do performance will become so bad that there's no point.
So turning off the write caching is really a non-starter.
Do you know if that's changed at all with NCQ on modern SATA drives?
I've seen people commenting that using tags recovers most, if not all,
of the performance lost by disabling the write cache.
--
Bruce Cran
