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From: pascal@zuo.dec.com (Pascal Pederiva)
Newsgroups: comp.os.386bsd.questions
Subject: Re: tape backups and FreeBSD 2.0
Date: 8 Jan 95 10:41:52 GMT
Organization: Digital Equipment Corporation
Lines: 35
Message-ID: <pascal.789561712@tempa>
References: <3eo4nt$jgm@bbs.dsnet.com>
NNTP-Posting-Host: tempa.zuo.dec.com
root@bbs.dsnet.com (System Administrator) writes:
>I'm having trouble getting a tape backup working with FreeBSD 2.0.
>The machine is a 486-66 with 32megs of ram. Controller is Adaptec
>1542CF. Tape drive is Exabyte 8500.
>It appears I can write to the drive ok (I don't get any errors when
>tar'ing to it). But when I try to 'tar tf' it:
> 2. after about 5 seconds the hard drive activity light goes
> on and stays on.
> 3. I get the following error, continuously repeated:
> sd0(aha0:0:0): timed out
> adapter not taking commands... frozen?
> debugger("aha1542") called
> 4. The only way to get out of it is to power cycle the computer.
>Duane Davis | God put me on earth to accomplish a certain number of
>root@dsnet.com | things. Right now I am so far behind I will never die
>OBBOFH in training |
Hi,
well this sounds much like a problem with SCSI Termination, if I recall
right , the termination on the adaptec1542cf is software controlled.
If you have internal disk(s) and an external tape , you should probably
switch off the controllers termination . Both ends of the bus should
then be terminated ( The Tape and the last internal disk ).
Pascal Pederiva
Open Systems Support, Digital Equipment Corp. Switzerland
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Pascal Pederiva pascal@zuo.dec.com
Open Systems Support
Digital Equipment Corp.