Tom Lane wrote:
Andreas Pflug <[EMAIL PROTECTED]> writes:Unless I am reading it wrong,
This would be the first time a SCSI disk lies about its write caching. There are plenty of low-cost (i.e. IDE) disks out there having a hidden write cache, but AFAIK a generic SCSI tool is usable to enable/disable the write cache.
A SCSI disk shouldn't lie about write completion in any case; there's no need to because the interface spec is inherently multi-threaded (unlike IDE). See past discussions.
http://www.fcpa.com/download/download/hard-drives/map10krpm-manual.pdf appears to suggest (page 5-21) that the write cache can be disabled. How I am not sure - maybe using one of the tools Andreas mentioned.
cheers
andrew
---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ?
http://www.postgresql.org/docs/faqs/FAQ.html