[34] in linux-scsi channel archive
Re: SCSI tape multi-vol tar problem
daemon@ATHENA.MIT.EDU (Kai Makisara)
Thu Jan 26 15:17:23 1995
Date: Thu, 26 Jan 1995 21:09:32 +0200 (EET)
From: Kai Makisara <makisara@abies.metla.fi>
In-reply-to: <m0rXVpW-0005TlC@bonzai.cnet.att.com>
To: Hank Pustarfi <bonzai!hank@aluxpo.att.com>
Cc: linux-scsi@vger.rutgers.edu
Reply-to: Kai.Makisara@metla.fi
On Thu, 26 Jan 1995, Hank Pustarfi wrote:
>
> It appears there is a problem when tar is used to do multi-volume
> saves using SCSI tape. It occurs only when a file is broken by a
> tape boundary. When the next tape volume is read it returns
> one or more of the following errors;
>
> FILE_NAME is not continued on this volume!
> This volume is out of sequence:
>
> This was a problem in very early kernels. The problem was
> fixed with some scsi patches for a kernel 0.98.4 about 11/93
> The patches took care of write-behind, EOM detection and data
> saving. I am not sure when this broke again. Does anyone have
> a fix for this problem?
>
Have you disabled buffered writes and write behind when writing the archive?
It is not possible to write reliably multivolume archives if these
options are enabled (default is enabled).
Nothing has been done deliberately that would break EOM detection. Of
course, it is possible that some changes have done this accidentally.
Kai
