<[EMAIL PROTECTED]> writes:
> I would like to know if my supposition is right.

> Considering an environment with only one hard disk attached to a server, an
> initial loading of the database probably is much faster using an IDE/ATA
> interface with write-back on than using an SCSI interface. That´s because of
> the SCSI command interface overhead.

I *seriously* doubt that.

If you see a difference in practice it's likely got more to do with the
SCSI drive not lying about write-complete ...

                        regards, tom lane

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