Greg Freemyer wrote:
On Fri, Apr 5, 2013 at 12:27 PM, Per Jessen <per@computer.org> wrote:
Carlos E. R. wrote:
This should be diminished by good disk hardware with a /write/ ram cache in the firmware. This cache is pretty small, and I'm not sure it caches writes.
Disks don't do write-caching. That is left to hardware controllers with battery-backed cache.
ISTR that sata drives have a very small write cache. For some reason I'm remembering up to 7 writes can be cached. For streamed data like BC is talking about, that is effectively nothing.
Does it need to be explicitly enabled? Seems odd for the drive to report "data written to disk" unless it has? -- Per Jessen, Zürich (0.0°C) http://www.dns24.ch/ - free DNS hosting, made in Switzerland. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org