Proxmox Backup Server 1.0 (stable)

fabian

Proxmox Staff Member
Staff member
Jan 7, 2016
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I'm interested in ZFS encryption support (but 2 lazy 2 check.)
What is the status of encrypted backups?

it does not use ZFS encryption.
 
Apr 24, 2020
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I'm interested in ZFS encryption support (but 2 lazy 2 check.)
What is the status of encrypted backups?
I'm running my test system on an encrypted zfs dataset, no issues so far, the PBS system just sees it as a dedicated directory. Of course I need to manually unlock the dataset whenever the server is rebooted, but that's a feature, and how often should a backup server need to be rebooted, anyway?
 

patefoniq

Member
Jan 7, 2019
44
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Łódź
syslink.pl
Do you plan any integration with Synology or QNAP devices? That would be a bull's-eye and a big nail in your competitors' coffin.
 

slowjoefast

Member
Jan 13, 2019
56
3
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I have 1 proxmox server running an old version (Virtual Environment 5.4-15), is it possible at all to have this working with PBS?
 

t.lamprecht

Proxmox Staff Member
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Jul 28, 2015
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I have 1 proxmox server running an old version (Virtual Environment 5.4-15), is it possible at all to have this working with PBS?
No, I'm afraid - Proxmox VE 5.4 is EOL sine July and it's software stack is too old to just add Proxmox Backup Server without major changes all over the place. At that point, we deemed that it's less risky and more efficient to upgrade to 6.x, which needs to be done anyway due to EOL of the 5.x release.

So, please upgrade to Proxmox VE 6.x first: https://pve.proxmox.com/wiki/Upgrade_from_5.x_to_6.0
 

slowjoefast

Member
Jan 13, 2019
56
3
13
No, I'm afraid - Proxmox VE 5.4 is EOL sine July and it's software stack is too old to just add Proxmox Backup Server without major changes all over the place. At that point, we deemed that it's less risky and more efficient to upgrade to 6.x, which needs to be done anyway due to EOL of the 5.x release.

So, please upgrade to Proxmox VE 6.x first: https://pve.proxmox.com/wiki/Upgrade_from_5.x_to_6.0
Ok, thanks for the info.
 

TimG

Member
Apr 15, 2016
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I was really excited, then I saw the community annual price .. ack.. o_O Been a paid supporter/customer for a little while now. Just cannot justify paying for 5x licenses worth of Proxmox for 1 home lab. Community price seem skewed to anyone else? Especially for annual subscription.. if that was perpetual price.. ok, can see that.. $500+

Way to much for my home lab. :rolleyes:
 
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Kadrim

Active Member
May 20, 2018
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I read the docs and still am a bit confused of how deduplication works:

1. On the Summary page of my Datastore it says: "Deduplication Factor 5.54". What exactly does that mean?
2. Is deduplication done in the scope of machines (host,CT,VM) or in the scope of the datastore? I.E. if i have 3 almost identicial VMs, will the deduplication for the backup happen so that only the incremental backups of each VM is considered or will all 3 VMs be taken into account?

Thanks in advance!
 

dcsapak

Proxmox Staff Member
Staff member
Feb 1, 2016
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Vienna
1. On the Summary page of my Datastore it says: "Deduplication Factor 5.54". What exactly does that mean?
it means that on average, each chunk is used 5.54 times (total referenced chunks/actual chunk count)

2. Is deduplication done in the scope of machines (host,CT,VM) or in the scope of the datastore? I.E. if i have 3 almost identicial VMs, will the deduplication for the backup happen so that only the incremental backups of each VM is considered or will all 3 VMs be taken into account?
deduplication is happening on datastore level (all backup snapshots in a datastore reference the same chunk store)
 
Sep 15, 2020
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We're currently running a 8 node cluster - 3 nodes are dedicated to CEPH. All our QCOW2 files reside on the CEPH cluster and we do a vma.zst backup to an NFS share. Our network is all 10GBIT and we're seeing only 40MB/S backups which is becoming a big issue as our client base grows on this cluster. Interested in switching our NFS server to PBS but would only make sense for us if QEMU is no longer managed in 64k blocks (I believe this is our bottle neck right now). Can you advise?
 

tom

Proxmox Staff Member
Staff member
Aug 29, 2006
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@tangerine , please open a new thread for your question.
 

t.lamprecht

Proxmox Staff Member
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Jul 28, 2015
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South Tyrol/Italy
shop.proxmox.com
Hello
To have a real "Veeam" killer ;-)
Will it be possible to restore only one file from a backup from GUI ?
Regards
Pierre-Yves
Yes, that is on the roadmap and actively worked on (and works already for file-based backups, e.g., Container backups).
 
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JoeDragon

New Member
Jul 28, 2020
15
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diff restore in the works?

Ceph direct dump? from pool to backup host with out adding io load to vm hosts?
 

H4R0

Well-Known Member
Apr 5, 2020
616
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Is there any way that we will see dirty bitmap for containers, could be implemented via snapshot diff for zfs and ceph rbd.

It's a bummer that vm's backup so fast and containers take ages. I had to migrate back my containers to vm's due to it.
 

t.lamprecht

Proxmox Staff Member
Staff member
Jul 28, 2015
5,281
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South Tyrol/Italy
shop.proxmox.com
Is there any way that we will see dirty bitmap for containers, could be implemented via snapshot diff for zfs and ceph rbd.
I'd not hold my breath for it.
We evaluated that one very closely and the diffs we get from ZFS do not work for the sliding window algorithm in use (which is only semi-correlated to files), it would effectively mean that combination of deduplication and full-backups would need to be abandoned, which we do not want - backups where one needs to apply multiple diffs and pray that that works out is something we want to avoid at all cost.
Ceph rbd would also only help for fixed size block based backups, as there's no function which can map block diffs to a dynamic block sized archives. There was lots of technical discussion, on lists and also internally - if there's a break through we will also certainly go for it; but it currently does not seem like that would be anytime soon.
 
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