Xen Plugin: Limitations

Enterprise

Bacula Enterprise Only

This solution is only available for Bacula Enterprise. For subscription inquiries, please reach out to sales@baculasystems.com.

The following chapter describes the known limitations of the Xen Plugin.

  • Snapshot with quiesce backups are only supported for Windows OSes with the XenServer Guest-Tools installed. This is a XenServer limitation and not a limitation of the Bacula Enterprise XenServer Plugin.

  • You cannot run two concurrent backups of the single VM Guest if the later one is a Full backup.

  • You have to provide enough free space at /$workingDirectory/xenapi/ which allows to raw disk images to restore and perform a block level incremental/differential patching. This is a XenServer limitation and not the Bacula Enterprise XenServer Plugin as API requires full virtual disk image uploading only - no partial block level patching. This limitation could be removed in the future as soon as XenServer API will provide a sufficient functionality.

  • The XenServer Plugin requires an NBD connection, which is not compatible with RHEL systems, consequently impacting RHEL derivative platforms such as Alma or Rocky Linux.

  • The restart command has limitations with plugins, as it initiates the Job from scratch rather than continuing it. Bacula determines whether a Job is restarted or continued, but using the restart command will result in a new Job.

Go back to: Xen Plugin.