On mån, 2010-10-25 at 09:33 -0400, Robert Haas wrote:
> It seems we're still missing some relevant details, because hdparm
> doesn't seem to work on SCSI devices.  Is sdparm the right utility in
> that case?  Does anyone know what the correct incantations look like?

Search the sdparm man page for "Writeback Cache".  It has detailed
examples.


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