Full backups

Full backups are released since 4.3

You can schedule full backups of your VMs, by exporting them in the local XOA file-system, or directly in a NFS share. "Depth" parameter allow to modify the retention (removing the oldest one).

Full backups are space consuming! But they allow a very simple restoration without anything to think of (the file will contain all the VM disks and information).

Remote stores

This where you can create your stores, places where your backups will be exported.

Supported stores:

local stores (any folder in XOA filesystem)
NFS stores

Other stores

We'll support SMB (CIFS) stores soon. Until then, if you need to mount an unsupported store, you could always do it manually:

mount your store inside XOA manually, e.g in /media/mySmbSstore
in the web interface, select a "local" store and point it to your /media/mySmbSstore folder.

Any Debian Linux mount point could be supported this way, until we add further options directly in the web interface.

Restore backups

All your scheduled backup are acccessible in the "Restore" view in backup section of Xen Orchestra.

Select your mountpoint
Choose the file you want to restore
Select the host/pool you want to restore it

About backup compression

By default, Backup are compressed (using GZIP, done in XenServer side). There is no absolute rule about using compression or not, but there is some rules.

Gzip compression is:

slow
space efficient
consume less bandwidth (if your NFS share is far)

If you have compression on your NFS share (or destination file-system like ZFS), you can disable compression in Xen Orchestra.

Here is a network usage graph with 2 identical backup, the first one without compression:

Add a disk for local backups

If you want to use XOA to store all your backups, you need to attach a large disk to it. This can be done in live.

First, after your disk is attached to XOA, you'll have to find the new disk name with fdisk -l. It's probably xvdb.

Then, create a filesystem on it:

mkfs.ext4 /dev/xvdb

If you already have backups done, you can move them to the new disk. The orignal backup folder is in /var/lib/xoa-backups.

To get the mount point persistent in XOA, edit the /etc/fstab file, and add:

/dev/xvdb /var/lib/xoa-backups ext4 defaults 0 0

This way, without modifying your previous scheduled snapshot, they will be written in this local mountpoint!

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