Within the scope of a single backup I've a mix of live data sources. For a live data source, e.g. /src/data1, that resides on a dedicated LV,
mount | grep vmail /dev/mapper/VG0-LV_DATA1 on /src/data1 type ext4 (rw,relatime,dax=never) I'd like to snapshot the volume prior to backup of the entire volume with BackupPC Reading online, I've found some old efforts -- script based -- on the ML, etc. afaict, they've not been carried over to v4 (yet? at all?). With v4, I see in config.pl _mention_ of snapshot Optional commands to run before and after dumps and restores, and also before and after each share of a dump. ... One example of using these commands would be to shut down and restart a database server, dump a database to files for backup, or doing a snapshot of a share prior to a backup. in reference to (e.g.), $Conf{DumpPreUserCmd} = '$sshPath -q -x -l root $host /usr/bin/dumpMysql'; What level of LV snapshotting integration exists with v4, or planned work? Is there any? Or, does the `lvcreate -s (snapshot) ... etc etc` need to be externally managed, and passed completely as an argument to $Conf{DumpPreUserCmd} ? To my per-PC config, /etc/BackupPC/pc/localhost.pl I've added $Conf{RsyncArgsExtra} = [ '--one-file-system', ]; as well as (initially) a list of shares' LV mount points, e.g. $Conf{RsyncShareName} = [ '/src/data1', '/src/data2', ... '/src/dataN', ]; If snapshot 'integration' is limited, and I have to manage each target share's snapshotting separately ... ... it's certainly DO-able, but messy. Ideally, I'd _like_ to -- similar to rsnapshot's approach -- specify a per-share target type, differentiating between 'filesystem direct' and 'snapshot'. Something like, $Conf{RsyncShareName} = [ 'lvm://dev/VG0/LV_DATA1, bkup_root:/, mount_name:src/data1', 'lvm://dev/VG0/LV_DATA2, root:/some/path, mount_name:src/data2', ... 'lvm://dev/VG0/LV_DATAN, mountpt:src/dataN', '/usr/local/some/path1', '/usr/local/some/path2', ]; wherein for 'lvm://' - a snapshot (e.g., 'snap-LV_DATA1') is created in the parent VG, /dev/VG0 - BackupPC mounts /dev/VG0/snap-LV_DATA1 to /config'd/tmp-mount/path/BackupPC-snap - BackupPC rsyncs /config'd/tmp-mount/path/BackupPC-snap/ -> $TOPDIR/'mount_name'/ - on ok backup, snapshot's destroyed - next share ... So, is this currently doable/planned in BackupPCv4+? If it's there, I've missed it. If it's not, it'd be quite useful to have in a well-thoughtout, integrated feature -- rather than YA-DIY script. _______________________________________________ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List: https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki: https://github.com/backuppc/backuppc/wiki Project: https://backuppc.github.io/backuppc/