[3769] in linux-scsi channel archive
Re: DLT 7000 with BusLogic on Linux, ext2 "dump"
daemon@ATHENA.MIT.EDU (Martin Kasper Petersen)
Sat Apr 25 06:50:54 1998
To: Daniel Quinlan <quinlan@transmeta.com>
Cc: linux-scsi@vger.rutgers.edu
From: Martin Kasper Petersen <mkp@socsci.auc.dk>
Date: 25 Apr 1998 12:43:34 +0200
In-Reply-To: Daniel Quinlan's message of "25 Apr 1998 02:58:37 -0700"
>>>>> "Daniel" == Daniel Quinlan <quinlan@transmeta.com> writes:
Daniel> Has anyone tried using a DLT 7000 (or DLT 4000) tape drive
Daniel> under Linux -- ideally with the BusLogic (BT-958 or BT-958D)
Daniel> and using BudTool (on top of dump, cpio, or tar) as your
Daniel> backup software.
I have been using a DLT 2000XT on a dedicated 53C810 controller for
almost two years. The backup server is a dual P90 with Linux 2.0.x and
Amanda. The machine is backing up ~13 GB compressed dumps every night.
Daniel> I'm also curious to know if anyone is successfully backing up
Daniel> large numbers of Linux hosts using the ext2 dump.
I am backing up around 10 Linux boxen using e2fs dump. A couple of
them have filesystems around 16 GB (i.e. they are dumped directly to
tape).
When I started using Amanda I had a few problems with dump under Linux
(I think it was in RedHat 3.0.3), but they were solved by upgrading
the package. Never had problems with newer distributions, neither libc
or glibc based.
The only problems I have with dump are the inevitable lseek errors
when the filesystems being backed up are busy. But that goes for HP-UX
and Solaris too.
Daniel> We tried using it some time ago, but had problems with
Daniel> exceptions (under 2.1) and lots of leftover (or runaway?) dump
Daniel> processes. We then switched to using GNU cpio for Linux
Daniel> backups.
No problems here. But then again: I don't run 2.1-series on production
machines. Not even SMP-servers.
--
Martin Kasper Petersen BOFH, IC1&2, Aalborg University, DK
mailto:mkp@SunSITE.auc.dk http://www.socsci.auc.dk/~mkp/
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