[2901] in linux-scsi channel archive
Stability/performance of SCSI adapters & their Linux drivers
daemon@ATHENA.MIT.EDU (Mr M S Aitchison)
Thu Dec 4 16:20:01 1997
Date: Fri, 05 Dec 1997 09:44:09 +1300
From: physmsa@cantua.canterbury.ac.nz (Mr M S Aitchison)
To: linux-scsi@vger.rutgers.edu
If we run 2.0.32 (possibly on a dual PII), and our choice is out of an
Asus PCI-SC875 (Ultra + Ultra Wide) and an Adaptec AHA2940UW, which is
the best to buy? (Our priorities being reliability and speed, in that
order, in a heavily used file server probably attached to a RAID box).
Second (related) question: how useful is it having *2* scsi adapters in
a linux system if one scsi bus is likely to have a large RAID system
with files that are to be served to the network while a local hard disk
has system files, swap ,etc? (especially after reading of recent
problems with CDROM reads & disconnection problems when using a single
adapter). We tend to put multiple scsi adapters on the SUN servers
when there is any chance the scsi chain is going to be heavily loaded
or long, but I need to check whether this is still required - is Linux
going to feed two ulte-wide adapters fast enough?
And still slightly related is the question: how fussed should I be
about getting a fast CPU (or dual CPU's) for a system only to be used
as a file server? If I religiously avoid IDE (not sure about CDROM),
is the Linux SCSI handling such that, once I get beyond (say) a P133
there is little benefit from faster CPU's?
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Mark Aitchison, \_ Phone: +64 3 364-2947 home 337-1225
Dept of Physics & Astronomy, </ Fax: +64 3 364-2469 or 364-2999
University of Canterbury, /) E-mail: phys169@csc.canterbury.ac.nz
Christchurch, NEW ZEALAND. (/' www.phys.canterbury.ac.nz/~physmsa
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