Date: Thu, 29 Oct 1998 21:51:11 -0500 From: "Richard Secor" <rsecor@seqlogic.com> To: <freebsd-questions@FreeBSD.ORG> Subject: Re: Tape Drive Compression Message-ID: <033a01be03b0$26cf4d80$0200000a@spaceball1.seqlogic.com>
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The tape drive doesn't seem to have a force compression jumper and/or dip
switch.
I did however try changing the type of system it thinks it was on....
found that it works a little better if you set it up for use with an SGI
system...
however I am still haveing another issue....
when it gets to what could possibly be the end of the tape
it seems to stop and say something other than put another tape in.
then it asks if you want to restart dump or not.
note: I'm backing up several filesystems across a span of 3 hard
drives....
on one tape.... so i cant really tell dump the length of
the tape ...... or density..
as the tape will NEVER be at the begininning of the tape
......
thus the "-a" option which should work.....
but seems to have taken an extended vacation.
-=Richard Secor
Sequential Logic=-
-----Original Message-----
From: Greg Lehey <grog@lemis.com>
To: Richard Secor <rsecor@seqlogic.com>; freebsd-questions@FreeBSD.ORG
<freebsd-questions@FreeBSD.ORG>
Date: Thursday, October 29, 1998 17:51
Subject: Re: Tape Drive Compression
>On Wednesday, 28 October 1998 at 21:19:56 -0500, Richard Secor wrote:
>> I have a 4mm tape drive I'm trying to get compression to work on under
>> FreeBSD.
>>
>> 1) What versions of FreeBSD support compression on DDS tapes?
>
>All of them
>
>> 2) Is there anything special I have to do (i.e., mt -f <device> density
or
>> somthing) ?
>
>Possibly. Check your tape drive documentation. In general, it's
>easier to set it for compression by default rather than mess with the
>somewhat confusing mt options.
>
>Greg
>--
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