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From: edp@titan.kodak.com (Ed Pendzik (Sun Consulting))
Newsgroups: comp.sys.sun,comp.periphs.scsi
Subject: Re: Exabyte hanging SCSI ...
Keywords: Hardware
Message-ID: <8333@brazos.Rice.edu>
Date: 30 May 90 15:36:06 GMT
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X-Sun-Spots-Digest: Volume 9, Issue 191, message 1

In article <7393@brazos.Rice.edu> buengc!apollo@husc6.harvard.edu (Douglas Chan) writes:

| Our 8mm Exabyte is causing problems for other SCSI devices (two Wren V
| drives and a 1/4" tape drive) on a sun 4/380 running 4.0.3.  The problem
| only seems to show up when the drives are being accessed and large dumps
| are being made to the Exabyte.
|
| Anyway, this happens for about 30 minutes then all the SCSI devices hang.
| Any processes which has to use any of the devices will also hang (they
| can't be killed either).

Wren v's have a firmware problem which only occurs when the page 2
parameter buffer full/empty discon/recon ratio is larger than 4.

Call Imprimis/Segate and ask to get your firmware upgraded to rev 75900297
or better of change the page 2 parameter back, which will slow down you
disk by effectively disabling the caching.