BackupPC-users

Re: [BackupPC-users] Copying BackupPC to tape for off-site storage - very slow

2010-03-02 13:08:53
Subject: Re: [BackupPC-users] Copying BackupPC to tape for off-site storage - very slow
From: Gerald Brandt <gbr AT majentis DOT com>
To: "General list for user discussion, questions and support" <backuppc-users AT lists.sourceforge DOT net>
Date: Tue, 2 Mar 2010 11:34:03 -0600 (CST)
I archive to a USB drive, and it took 20 hours to archive 282 GB of data.  Yikes.  That's roughly 1.3 MB/s

We were CPU bound when creating the gzip file, I think.

Gerald

----- "Sean Carolan" <scarolan AT gmail DOT com> wrote:
> Hello BackupPC users:
>
> We have a BackupPC system that has been working well for us for the
> past three years.  There is about 1.2 terabytes of data on our
> BackupPC partition and we'd like to be able to spool it off to tape
> for off-site storage.  We have an HP d2d device that gets about 50-60
> MB/s throughput during testing.  When I try to back up our backuppc
> partition however, I only get around 25MB per *minute*.  At this rate
> it will take days to back up the entire partition.  I'm using bacula
> to manage the tape backups.
>
> Would this go faster if I unmounted the partition and tried to do a
> block-level copy of the entire thing?  How would you handle this?
>
> Thanks
>
> Sean
>
> ------------------------------------------------------------------------------
> Download Intel&#174; Parallel Studio Eval
> Try the new software tools for yourself. Speed compiling, find bugs
> proactively, and fine-tune applications for parallel performance.
> See why Intel Parallel Studio got high marks during beta.
> http://p.sf.net/sfu/intel-sw-dev
> _______________________________________________
> BackupPC-users mailing list
> BackupPC-users AT lists.sourceforge DOT net
> List:    https://lists.sourceforge.net/lists/listinfo/backuppc-users
> Wiki:    http://backuppc.wiki.sourceforge.net
> Project: http://backuppc.sourceforge.net/
>
------------------------------------------------------------------------------
Download Intel&#174; Parallel Studio Eval
Try the new software tools for yourself. Speed compiling, find bugs
proactively, and fine-tune applications for parallel performance.
See why Intel Parallel Studio got high marks during beta.
http://p.sf.net/sfu/intel-sw-dev
_______________________________________________
BackupPC-users mailing list
BackupPC-users AT lists.sourceforge DOT net
List:    https://lists.sourceforge.net/lists/listinfo/backuppc-users
Wiki:    http://backuppc.wiki.sourceforge.net
Project: http://backuppc.sourceforge.net/
<Prev in Thread] Current Thread [Next in Thread>
  • Re: [BackupPC-users] Copying BackupPC to tape for off-site storage - very slow, Gerald Brandt <=