So I had this "new" 200GB PATA disk to play with. I started with some reading from
howtoforge and created my first btrfs partition on it. Initially I formatted the entire disk (/dev/sda) like this:
mkfs.btrfs /dev/sda
Then I changed my mind and recreated a partition table and a primary partition just for clarity. It doesn't seem to help much but it also doesn't seem to be a problem and I reformatted using:
mkfs.btrfs /dev/sda1
So far so good. 186GB available. I updated /etc/fstab to use the new btrfs partition for urBackup data and activating lzo compression on it:
UUID=5b775601-11bb-42d9-8b43-e106fb288c8e /var/backup/urBackup btrfs compress=lzo 0 2
I moved the contents of my 300GB ext4 partition there after stopping the urBackup service:
sudo service urbackupsrv stop
Then restarted urBackup and checked it was running fine. However I had to first change the permissions because urBackup runs as a normal user:
sudo chown urbackup:urbackup /var/backup/urBackup/
At this point the urBackup service seems to be happy from its new home:
sudo service urbackupsrv status
urbackupsrv.service - LSB: Server for doing backups
Loaded: loaded (/etc/init.d/urbackupsrv; generated; vendor preset: enabled)
Active: active (running) since Sat 2018-01-20 12:15:56 CET; 14min ago
Docs: man:systemd-sysv-generator(8)
Process: 1131 ExecStart=/etc/init.d/urbackupsrv start (code=exited, status=0/S
Tasks: 25 (limit: 4915)
CGroup: /system.slice/urbackupsrv.service
└─1301 /usr/bin/urbackupsrv run --config /etc/default/urbackupsrv --d
jan 20 12:15:50 kid2.lan systemd[1]: Starting LSB: Server for doing backups...
jan 20 12:15:56 kid2.lan systemd[1]: Started LSB: Server for doing backups.
jan 20 12:16:51 kid2.lan urbackupsrv[1301]: Login successful for admin from 192.
jan 20 12:19:52 kid2.lan urbackupsrv[1301]: Login successful for admin from 127.
From there I recycled my 300GB SATA hard disk and added it to the btrfs pool, thus making it a multivolume filesystem:
sudo btrfs device add -f /dev/sdb1 /var/backup/urBackup
Pretty happy at this point. Even more available space:
sudo btrfs filesystem show
Label: none uuid: 5b775601-11bb-42d9-8b43-e106fb288c8e
Total devices 2 FS bytes used 43.80GiB
devid 1 size 186.31GiB used 2.01GiB path /dev/sda1
devid 2 size 298.09GiB used 43.00GiB path /dev/sdb1
Or else:
df -h /dev/sda1
Sys. de fichiers Taille Utilisé Dispo Uti% Monté sur
/dev/sda1 485G 44G 440G 10% /var/backup/urBackup
The space above is shown after I had let urBackup run and soon after I had my backups done from the two Windows clients that are defined. Can't wait now to add a third, bigger hard disk to this filesystem...
