I am running BackupPC 3.0.0 on Ubuntu Hardy - installed from the apt
repository.
I have been using it for several months without issue - its backing up
all the machines in my office (6 or 7 of them) as well as 1 server
that was on a different subnet though located in the same room as the
backuppc machine.
2 days ago I switched this server to be on the same subnet as the rest
of the office so that the backups could run more quickly (the traffic
would not have to go all the way out to the modem and back, just hit
the switch between machines - gigabit instead of 100/T).
The old IP address of the server was 207.70.x.x, the new one is
192.168.x.x. I went into /var/lib/backuppc/pc and simply renamed the
directory from 207.70.x.x to 192.168.x.x. I also changed the host
details in the backuppc setup screens to reflect the new IP change.
After doing so (and updating some ssh keys) all the backups appeared
correctly under the listing for 192.168.x.x from when it was the
207.70.x.x.
I then ran a full backup, which took about an hour or so (expected)
and completed successfuly.
I then attempted to run an incremental backup. This is where problems
started: The incremental never finished. I let it run overnight
(about 17 hours) and it was steadily transferring data at a very high
rate of speed (verified with iftop and other network monitoring
software), but the backup never finished. The drive on the server
being backed up only has about 70GB of data to backup, yet many
hundreds of GB of data were transferred to the backup server.
So, what gives? Is there something more I need to change when
switching the IP of a backed up machine?
(oh, and I'm using rsync for the backups everywhere - mixture of linux
and os x hosts being backed up, and all the other hosts backup (both
full and incremental) correctly).
Thanks!
- Kimball
http://www.kimballlarsen.com
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