Date: Fri, 4 Feb 2000 06:46:16 -0600 From: Support <rjn103s@mgr3.k12.mo.us> To: Dan Nelson <dnelson@emsphone.com> Cc: questions@FreeBSD.ORG Subject: Re: mt erase command question Message-ID: <00020406585500.01178@redmobile> In-Reply-To: <20000203133300.B17882@dan.emsphone.com> References: <00020310272102.00687@redmobile> <20000203133300.B17882@dan.emsphone.com>
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Greetins,
On Thu, 03 Feb 2000, Dan Nelson wrote:
> In the last episode (Feb 03), Support said:
> > I think that mt erase only erases the first fileSys on the tape. So
> > my question is if I have 3 fileSys on the tape how do I erase all at
> > once?
>
> The standard "mt erase" is a "long" erase, which should zero out the
> entire tape.
I was confused because the man page it says a count of 0 disables long erase,
which in by default. So I assumed that this only cleared the 1st fileSys
So, I was wanting to understand exactly what the command:
mt erase {count}
actually does. Please explain the count.
>
> > Thanks!
> >
> > FYI: The reason I have to do this is the tape gets block size
> > confused sometimes (maybe once per month) and this is the only way I
> > have found to fix the tape problem:( It happens at random on
> > different boxes and tapes. I use tar for backups. FreeBSD 3.4 Any
> > thoughts?
>
> I've never had any problems with blocksizes on my tape drives. When
> you say "confused", what exactly do you mean?
>
Well, the system starts saying media error and I discovered
the block size error when the command: mt erase did not fix the
problem on the tape with multiple fileSys. I took it over to a windoz box and
it reorted block size errors during an erase from it. I then discovered that
if I put a count on the mt erase that it as well could correct the problem.
Hence I am trying to understand the count.
> > Richard Nelson >
> No relation. :)
>
Neighbors, however through FreeBSD;)
> --
> Dan Nelson
> dnelson@emsphone.com
--
Richard Nelson
Try Something Without GPF's - - Not To Mention The Cost:)
FreeBSD http://www.freebsd.org RedHat http://www.redhat.com
Strong Supporter of Visual Tcl http://www.neuron.com/stewart/vtcl/
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