Disabling write cache on eSATA enclosures

Dan dan-freebsd-questions at ourbrains.org
Wed Mar 11 11:10:49 PDT 2009

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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