Solaris

Good morning,

I am debugging an incremental backup system. It's actually f... up the hard link stuff and does not just do incrementals but full backups. What it should do is:

Code:

mv /storage/backups/Keto_Samba/backup.5 /storage/backups/Keto_Samba/backup.tmp
mv /storage/backups/Keto_Samba/backup.4 /storage/backups/Keto_Samba/backup.5
mv /storage/backups/Keto_Samba/backup.3 /storage/backups/Keto_Samba/backup.4
mv /storage/backups/Keto_Samba/backup.2 /storage/backups/Keto_Samba/backup.3
mv /storage/backups/Keto_Samba/backup.1 /storage/backups/Keto_Samba/backup.2
mv /storage/backups/Keto_Samba/backup.0 /storage/backups/Keto_Samba/backup.1
mv /storage/backups/Keto_Samba/backup.tmp /storage/backups/Keto_Samba/backup.0
cp -al /storage/backups/Keto_Samba/backup.1/. /storage/backups/Keto_Samba/backup.0

rsync -aru --delete root@192.168.17.15:/home/* /storage/backups/Keto_Samba/backup.0/

Well, should I try to use the snapshot feature of ZFS instead? Like doing rsyncs to a steady filesystem and then the incremental snapshots with zfs send -i? What do you recommend?

Using ZFS snapshots is a quick and easy way to backup user home directories. For example, the following syntax creates recursive snapshots of all home directories in the tank/home file system.
# zfs snapshot -r tank/home@monday
You can create rolling snapshots to help manage snapshot copies.
You can use the zfs send and zfs receive commands to archive snapshots to more permanent storage.
You can create an incremental snapshot stream (see "zfs send -i" syntax).
The zfs send and receive commands are not enterprise-backup solutions. The receive operation is an all-or-nothing event, you can get all of a snapshot or none of it.
If you store the output of zfs send on a file or on tape, and that file becomes corrupted, then it will not be possible to receive correctly and none of the data will be recoverable.Enterprise backup solutions, as well as other copying methods, such as cp, tar, rsync, pax, cpio, and so on, are more appropriate for backup/restore than zfs send/receive.