Disabling write cache on eSATA enclosures
FreeBSD List
mlfreebsd at streamingedge.com
Wed Mar 11 13:39:56 PDT 2009
I've got an external eSATA enclosure as well which is using a Silicon
Image Chipset and its connected to a Silicon Image SATA controller just
like yours. So far, I haven't figured out how to turn off the write
cache. I even tried playing with it on Windows (both XP & Vista) and so
far, there is no way to disable it. This seems like a common problem
with Silicon Image Chipset + Silicon Image SATA controller. There's a
lot of complains on google about this but no fixes that work.
If anyone on the list has any first hand experience in resolving this,
I'm all ears.
-- Jacques Manukyan
Dan wrote:
> Hi. atacontrol is reporting that the write cache on an eSATA enclosure I
> am using (Silicon Image chipset) with Silicon Image SATA controller has
> write cache enabled even though I want it disabled in loader.conf. My
> feeling is this has to be controlled by the enclosure, though such
> control doesn't exist. Is this it, or is the OS still responsible for
> turning off cache on external drives? What's your experience? Thanks.
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