Vzdump how long

You can now copy the dump to the other OpenVZ server, e. If you don't want to modify the settings of the VM e. IP address, hostname , you can start it now, but please make sure that the original VM is stopped on server1. If you want to run both VMs the original one and the clone at the same time, you must change the IP address and hostname of the clone before you start it.

In later versions, the --restore option of the vzdump command has been replaced with a separate command:. This feature is only available to subscribers. Get your subscription here. In the example setup below, there are a total of 4 partitions:. All logical volumes are hosted on a 1. In this setup the GB of free volume group space and GB of backup directory have been chosen to hold the snapshots and tar files that will be created when the virtual machine will be backed up.

As specified above, only MB of snapshot space is needed, but it's better to be safe than having to resize your volumes at a later stage when disk space is not an issue. The same holds for the backup directory. When trying to backup a virtual machine, creation of the snapshot can fail.

Each option only covers backups within its time period. The next option does not take care of already covered backups. It will only consider older backups. While you can pass prune-backups directly to vzdump , it is often more sensible to configure the setting on the storage level, which can be done via the web interface.

You can use the prune simulator of the Proxmox Backup Server documentation to explore the effect of different retention options with various backup schedules. The backup frequency and retention of old backups may depend on how often data changes, and how important an older state may be, in a specific work load.

For this example, we assume that you are doing daily backups, have a retention period of 10 years, and the period between backups stored gradually grows. Setting keep-last ensures this. You cover extra manual backups already, with keep-last. As you covered the current year with the previous options, you would set this to nine for the remaining ones, giving you a total of at least 10 years of coverage. We recommend that you use a higher retention period than is minimally required by your environment; you can always reduce it if you find it is unnecessarily high, but you cannot recreate backups once they have been removed.

Restoring one or more big backups may need a lot of resources, especially storage bandwidth for both reading from the backup storage and writing to the target storage.

This can negatively affect other virtual guests as access to storage can get congested. To avoid this you can set bandwidth limits for a backup job. Proxmox VE implements two kinds of limits for restoring and archive:. The read limit indirectly affects the write limit, as we cannot write more than we read. A smaller per-job limit will overwrite a bigger per-storage limit. Restoring a large backup can take a long time, in which a guest is still unavailable. For VM backups stored on a Proxmox Backup Server, this wait time can be mitigated using the live-restore option.

Enabling live-restore via either the checkbox in the GUI or the --live-restore argument of qmrestore causes the VM to start as soon as the restore begins. Data is copied in the background, prioritizing chunks that the VM is actively accessing. During live-restore, the VM will operate with limited disk read speeds, as data has to be loaded from the backup server once loaded, it is immediately available on the destination storage however, so accessing data twice only incurs the penalty the first time.

Write speeds are largely unaffected. If the live-restore fails for any reason, the VM will be left in an undefined state - that is, not all data might have been copied from the backup, and it is most likely not possible to keep any data that was written during the failed restore operation.

This mode of operation is especially useful for large VMs, where only a small amount of data is required for initial operation, e. The File Restore button in the Backups tab of the storage GUI can be used to open a file browser directly on the data contained in a backup. This feature is only available for backups on a Proxmox Backup Server. For containers, the first layer of the file tree shows all included pxar archives, which can be opened and browsed freely.

For VMs, the first layer shows contained drive images, which can be opened to reveal a list of supported storage technologies found on the drive.

In the most basic case, this will be an entry called part , representing a partition table, which contains entries for each partition found on the drive. Note that for VMs, not all data might be accessible unsupported guest file systems, storage technologies, etc…. Fortunately, there is a good range of third-party alternatives when it comes to backup and restore operations within the Proxmox virtual environment.

Surprisingly enough, Bacula Enterprise also offers two different ways of performing a Proxmox VM backup, and one of them does not even involve the Proxmox module in the first place. The first method involves installing a Bacula Enterprise File Daemon on each of the guest VMs of which you want to perform backups. Other than that, installing a Bacula File Daemon allows for a large choice of features, including job verification, individual file restoration, file level compression, checksum verification, and more.

Three main steps are included in the process of creating a Proxmox VM backup with Bacula Enterprise:. As you can see, the main backup mode that Bacula Enterprise utilizes is Snapshot mode, allowing for consistent backups and little to no downtime.

LXC guest VM backups are stored in two file types —. This applies to one guest VM only, so there is a need to create multiple backup jobs if you need to backup multiple Proxmox VMs. Two restore types are available when it comes to Proxmox with Bacula Enterprise. You can restore the data as a complete Proxmox guest VM it will be restored either with the original vmid that it was backed up with, or with the new one if the previous one is already taken.

Another nuance is about the vmid of the restored guest VM. You can also go over this random process with the sequentialvmid command — that way your guest VM would get the first available number within the system. Another recovery option is to restore all of the data into a local directory. Nonexistent paths would be automatically created by the Proxmox module.