[Mimedefang] ramdisks on Linux

[Jon R. Kibler]

Rob wrote:

> The only exception is if you create directories for the different files (xf,
> df and qf from memory), in which case you can make one of those a RAM disk,
> though I can't remember from memory.

For best performance from sendmail's mailqueues, put xf in a RAM disk, and put
df and qf on two separate spindles on two different controllers -- and use the
fastest possible disks you can afford. For example, given two different disks
with the same seek times, a 15,000 RPM drive will be twice as fast as a 7,500
RPM drive. Also, in general, SCSI drives will be faster than IDE drives -- in
fact, quite often two SCSI drives on the same controller will be faster than
two IDE drives on separate controllers because of the differences between how 
the SCSI and IDE protocols transfer data over their buses.

Jon
-- 
Jon R. Kibler
Chief Technical Officer
A.S.E.T., Inc.
Charleston, SC  USA
(843) 849-8214




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