After further experimenting, it appears that with squeeze (unlike lenny) that 
running BackupPC_nightly and BackupPC_dump at the same time is the problem. 
After changing the schedule so that BackupPC_nightly runs hours before the 
backups start that everybody is happy.

Jim Evans

-----Original Message-----
From: Les Mikesell [mailto:lesmikesell AT gmail DOT com] 
Sent: Wednesday, September 07, 2011 6:47 PM
To: General list for user discussion, questions and support
Subject: Re: [BackupPC-users] Backups very slow after upgrade to squeeze

On Wed, Sep 7, 2011 at 3:10 PM, James L. Evans <jle AT techatl DOT com> wrote:
>
> xvda1   10GB    Operating system (24% used)
> xvdb1   536MB   Swap partition
> xvbc1   214GB   backup storage (72% used)
>
> I'm not sure how to tell what a "fragmented VM image" would look like.

Did the location or allocation change as part of the upgrade?  If the
partitions are mapped straight from the host, I wouldn't expect them
to, but something seems to have made writing very slow.  Or perhaps
you have concurrent activity on a different VM  or application that
competes with the physical disk head location.

-- 
  Les Mikesell
   lesmikesell AT gmail DOT com

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