Path: utzoo!mnetor!tmsoft!torsqnt!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!wuarchive!hsdndev!cmcl2!uupsi!eye!paul
From: paul@eye.com (Paul B. Booth)
Newsgroups: comp.sys.hp
Subject: hpib/scsi ?
Message-ID: <1990Dec21.181837.6797@eye.com>
Date: 21 Dec 90 18:18:37 GMT
Reply-To: paul@eye.com (Paul B. Booth)
Organization: 3D/Eye Inc., Ithaca, NY
Lines: 27

Maybe someone knows (or can guess well)....

I'm upgrading hardware for a group of software developers.  Currently, they're
running 360's - 375's all with hpib disks (7963's and 7937's).  The hpib bus
is a major bottleneck for these guys, because they're doing a lot of disk
intensive work.  It's been suggested that switching to scsi disks would help,
because the bus is ~4X faster than hpib (comments?).  If I go this way, I
can't just trash 5Gb of hpib disks all at once, so they'll have to co-exist
with the scsi's for a time.  That brings up some ?'s:

    *Any problems running both hpib and scsi disks on 1 375?

    *Does hp make a scsi disk interface that plugs into a DIO2 slot?  Or,
     can I hang disks off the interface I use for my o/m drives (98658a)?
     Is either significantly faster or slower than the built-in scsi
     interface on the 375?

    *Does hp make a DIO or DIO2 hpib interface card that can handle more
     than 4 disks (like the 98625b)?  The real question here is whether or
     not I can put 4 7963's (12 mechanisms) on a single 375.

Thanks in advance for any/all wisdom...
--
Paul B. Booth  (paul@eye.com) (...!hplabs!hpfcla!eye!paul)
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