[349] in linux-scsi channel archive
Re: DAT drives and NCR controllers
daemon@ATHENA.MIT.EDU (Drew Eckhardt)
Wed Jul 12 12:29:13 1995
To: cjs <cjs@netcom.com>
cc: linux-scsi@vger.rutgers.edu
In-reply-to: Your message of "Tue, 11 Jul 1995 12:58:01 CDT."
<199507111758.MAA00312@hoopsnake>
Date: Tue, 11 Jul 1995 23:07:25 -0600
From: Drew Eckhardt <drew@poohsticks.org>
In message <199507111758.MAA00312@hoopsnake>, cjs@netcom.com writes:
>Hello!
>
>I hate to ask this, but I have a friend who wants to add a DAT drive
>to his system. The preferable way to do it would be to hang it off of
>one of those NCR based PCI controllers -- but he has heard that they
>have problems with connects and disconnects which interfer with tape
>drives and wants me to write you all asking confirmation or dissmissal
>of the rumors.
The distribution NCR 53c810 drivers do not disconnect/reconnect.
The net effects of this are that if you use a hard drive and a
tape drive on the same NCR board, you get locked out of your disk
whenever the tape drive rewinds, retensions, etc. Not pretty.
If you're just using a tape drive (or have a pair of the boards),
it usually works fine (there are a lot of PCI headaches).
