On 10/23/2013 4:42 PM, Thomas H. George wrote:
Three tries at backing up the root directory failed, each time ending
with a lost connection message.
You may be getting some sort of timeout where the SSH session is being
closed.
The first two failures were to backup the entire desktop excluding /proc
(167 Bb). The third excluded two large directories, /data (116 Gb) and
/storage (18 Gb), as well as /proc.
/proc, /sys, /tmp, /lost+found should always be excluded (and possibly a
few others like /var/tmp).
If you have a very large system, you probably want to backup parts of
your system to different rdiff-backup target directories. Such as
backing up /home, /data and /storage separate from everything else.
Next I tried backing up just /storage and this may have succeeded. After
running for some time the root prompt reappeared, no messages, no
statistics. No rdiff-backup log in /var/log. No session_statistic file
that I can find.
By default, rdiff-backup does not print statistics unless you pass it
the "--print-statistics" option. The simplest form of the rdiff-backup
command is therefore:
rdiff-backup --print-statistics ${BKPBASE}${DIR}
${OFFHOST}::${OFFBASE}${DIR}
For example:
rdiff-backup --print-statistics /home/username
servername::/backup/system-home/username/
This takes the contents of /home/username and backs them up to
/backup/system-home/username on the "servername" computer.
Another good program to use is to run "atop" while the backup is
running, this will show you disk/network/CPU activity and would tell you
whether things are waiting on the CPU/disk/network.
Any advice as to what might cause the desktop backup to fail? Why no
log file and no session_statistics?
An rdiff-backup target directory always has a directory named
"rdiff-backup-data". Inside of there is a file called "backup.log" that
might have what you are looking for.
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