[PVE-User] Proxmox Backup Server (beta)

Roland devzero at web.de
Fri Jul 10 13:42:05 CEST 2020

great to hear! :)

one technical/performance question - will delta backup be i/o efficient
( like VMWare cbt ) ?


Am 10.07.20 um 12:56 schrieb Martin Maurer:
> We are proud to announce the first beta release of our new Proxmox
> Backup Server.
> It's an enterprise-class client-server backup software that backups
> virtual machines, containers, and physical hosts. It is specially
> optimized for the Proxmox Virtual Environment platform and allows you
> to backup and replicate your data securely. It provides easy
> management with a command line and web-based user interface, and is
> licensed under the GNU Affero General Public License v3 (GNU AGPL, v3).
> Proxmox Backup Server supports incremental backups, deduplication,
> compression and authenticated encryption. Using Rust
> https://www.rust-lang.org/ as implementation language guarantees high
> performance, low resource usage, and a safe, high quality code base.
> It features strong encryption done on the client side. Thus, it’s
> possible to backup data to not fully trusted targets.
> Main Features
> Support for Proxmox VE:
> The Proxmox Virtual Environment is fully supported and you can easily
> backup virtual machines (supporting QEMU dirty bitmaps -
> https://www.qemu.org/docs/master/interop/bitmaps.html) and containers.
> Performance:
> The whole software stack is written in Rust
> https://www.rust-lang.org/, to provide high speed and memory efficiency.
> Deduplication:
> Periodic backups produce large amounts of duplicate data. The
> deduplication layer avoids redundancy and minimizes the used storage
> space.
> Incremental backups:
> Changes between backups are typically low. Reading and sending only
> the delta reduces storage and network impact of backups.
> Data Integrity:
> The built in SHA-256 https://en.wikipedia.org/wiki/SHA-2 checksum
> algorithm assures the accuracy and consistency of your backups.
> Remote Sync:
> It is possible to efficiently synchronize data to remote sites. Only
> deltas containing new data are transferred.
> Compression:
> The ultra fast Zstandard compression is able to compress several
> gigabytes of data per second.
> Encryption:
> Backups can be encrypted on the client-side using AES-256 in
> Galois/Counter Mode (GCM
> https://en.wikipedia.org/wiki/Galois/Counter_Mode). This authenticated
> encryption mode provides very high performance on modern hardware.
> Web interface:
> Manage Proxmox backups with the integrated web-based user interface.
> Open Source:
> No secrets. Proxmox Backup Server is free and open-source software.
> The source code is licensed under AGPL, v3.
> Support:
> Enterprise support will be available from Proxmox.
> And of course - Backups can be restored!
> Release notes
> https://pbs.proxmox.com/wiki/index.php/Roadmap
> Download
> https://www.proxmox.com/downloads
> Alternate ISO download:
> http://download.proxmox.com/iso
> Documentation
> https://pbs.proxmox.com
> Community Forum
> https://forum.proxmox.com
> Source Code
> https://git.proxmox.com
> Bugtracker
> https://bugzilla.proxmox.com
> Q: How does this integrate into Proxmox VE?
> A: Just add your Proxmox Backup Server storage as new storage backup
> target to your Proxmox VE. Make sure that you have at least
> pve-manager 6.2-9 installed.
> Q: What will happen with the existing Proxmox VE backup (vzdump)?
> A: You can still use vzdump. The new backup is an additional but very
> powerful way to backup and restore your VMs and container.
> Q: Can I already backup my other Debian servers (file backup agent)?
> A: Yes, just install the Proxmox Backup Client
> (https://pbs.proxmox.com/docs/installation.html#install-proxmox-backup-client-on-debian).
> Q: Are there already backup agents for other distributions?
> A: Not packaged yet, but using a statically linked binary should work
> in most cases on modern Linux OS (work in progress).
> Q: Is there any recommended server hardware for the Proxmox Backup
> Server?
> A: Use enterprise class server hardware with enough disks for the
> (big) ZFS pool holding your backup data. The Backup Server should be
> in the same datacenter as your Proxmox VE hosts.
> Q: Where can I get more information about coming feature updates?
> A: Follow the announcement forum, pbs-devel mailing list
> https://lists.proxmox.com/cgi-bin/mailman/listinfo/pbs-devel, and
> subscribe to our newsletter https://www.proxmox.com/news.
> Please help us reaching the final release date by testing this beta
> and by providing feedback via https://forum.proxmox.com

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