Adaptec scsi performance

[Michael Josephson <mjj55409@yahoo.com>]

I'm running Debian (kernal 2.2.17) on a server at
home: PIII 700 256MB ram with an Adaptec 29160 SCSI
controller and an IBM ultra 160 hard drive. When I run
hdparm -Tt /dev/sda, it reports:

Timing buffer-cache reads: ...= 128 MB/sec
Timing buffered disk reads: ...= 19.05 MB/sec

I'm not expecting max performance, but 19 MB/sec is a
helluva lot slower than 160 MB/sec. Anyone have any
thoughts on this?

mj

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