Charlie Watts writes: 

> I have a dual-proc PIII 500MHz, 512MB Ram, single 10/100 NIC, plus a
> couple of SCSI disks for system and logging and a couple of mirrored
> UDMA66 IDE disks on dedicated controllers for mail storage.

You should swap them around.  You should use the SCSI disks for mail 
storage, and IDE disks for system and logging. 

SCSI will handle concurrent access much better than IDE, irrespective of the 
comparative bus speeds. 


-- 
Sam 

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