[BackupPC-users] Backuppc with Xen

Hello,

I have installed backuppc on an ubuntu 8.04 xen 64-bit domu and I must say I like it. It was installed it via the "aptitude install backuppc" command. I have setup a few other machines for it to back up and am liking what I see. I have a slight problem however. When I backup a physical machine, or wondows virtual machine, it does fine. But when I backup another Xen para-virtualized domu it takes FOREVER and finally errors out with "backup failed (aborted by signal=ALRM)". Here is my systems and basic specs:

virtual server: XEN dom0 running with all domu's as LVM, 64-bit.
backuppc: running on Ubuntu 8.04 64-bit domu with 2 cpu cores available (2.4GHZ) and 1GB RAM
laptop: physical laptop running windows vista 32-bit. Using the standalond cygwin rsyncd as supplied on the backuppc downloads page.
Windows 2003 server: Running as a HVM 32-bit domu on the virtual server. Using same cygwin rsyncd as above.
machine1: Ubuntu 8.04 32-bit physical machine. using rsync to backup
machine2: Ubuntu 8.04 32-bit XEN domu. Using rsync to backup
machine3: Ubuntu 8.04 32-bit XEN domu. Using rsync to backup

The only machines that do backup properly are listed below with the approximate time taken to run an incrimental and amount of data:

win2k3 server takes approx 45 min to run an incrimental. (8G data, 1.7G incrimental)
Machine1 takes approx 25 min to run an incrimental. (2.8G data total, 0.9GB incrimental)
laptop takes approx 25 min to run an incrimental. (about 63G data total, 500-600M incrimental)

I have tried everything I can think of to get the 2 para-virt domu's backed up. I was eventually able to get a good FULL backup of them but that took hours. The incrimental on machine2 started about 11 hours ago and has still not completed. It will keep going until I stop it or it errors out as above. I canceled backups on machine3 due to taking for ever.

I was thinking it may have something to do with the "ClientCharSet" variable so I ran the locale charmap and came up with "ANSI_X3.4-1968" on the 2 machines that are not backing up properly. None of the others have anything set for that variable and I have tried putting that ANSI_X3.4-1968 and leaving it blank.

I was also debating trying to figure out a way to run an LVM snapshot of the domu's on the dom0, mount them to be readable, and have backuppc run a backup against that then remove the lvm snapshot. But I would rather it just work the way it is designed to.

Does anyone have an idea of what could be happening here? I would love to have proper backups of my data.... especially since one of the machines not backing up is my web server! If you need more information I will provide any I can. Any help is appreciated.

Donny

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