QBUS SCSI card...

From: Doc Shipley <doc_at_mdrconsult.com>
Date: Mon Feb 24 22:18:00 2003

On Mon, 24 Feb 2003, Zane H. Healy wrote:

> Unfortunatly this is something that will have to wait for me to actually
> find the time to do it :^( I'm really curious as to how much of a
> difference in performance it would be possible to obtain with VMS. With VMS
> you're dealing with ODS2, DECnet and the Clustering software, on Unix you've
> got ffs (or whatever the filesystem BSD is using), TCP/IP and NFS. On the
> downside, Unix tends to beat VMS at disk IO, still we're talking more the
> difference between a RQDX3/RD54 combo vs. a nice fast more modern server
> with SCSI (or IDE) disks.

  I'd say it's more the difference between the throughput of the DEQNA
and the throughput of the RQDX3/RD54 than it is between the difference
between MFM & modern SCSI. My fileserver will spew data a good bit
faster than the DEQNA can process it. The Qbus ethernet is the
bottleneck.
  No hurry, anyhow. It's mostly academic to me - the whine of the MFM
drives makes SWMBO nuts. The choice to go network-based storage had the
unexpected speed boost, but peace in the castle was/is the overriding
factor....

        Doc
Received on Mon Feb 24 2003 - 22:18:00 GMT