"Nick Fankhauser" <[EMAIL PROTECTED]> writes:
> I'm departing in three ways from the simple IDE
> model that (I presume) the default random page cost of 4 is based on- The
> disks are SCSI & RAID and the FS would be different.

Actually, the default 4 is based on experiments I did quite awhile back
on HPUX (with a SCSI disk) and Linux (with an IDE disk, and a different
filesystem).  I didn't see too much difference between 'em.  RAID might
alter the equation, or not.

                        regards, tom lane

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