vzdump onto the same disk? Snapshot or large sequential writes should not be a heavy load.
I would say yes.
No, but it would be far from the first time consumer SSDs have problems. Especially the ones that only buy Phison controllers and slap...
Danke, das klingt einleuchtend.
Dann vermute ich, beim verwenden von fleecing wird nicht die komplette VM disk kopiert oder auf das fleecing device geschrieben, sondern nur diejenigen, die verändert werden?
Hi @IsThisThingOn,
es gibt keinen Storage-Level Snapshot. Das Ganze wird im QEMU-Block-Layer gehandhabt und deswegen müssen alte Blöcke, die noch nicht im Backup sind, weggeschrieben werden, um einen neuen Write vom Gast zu akzeptieren. Der würde...
If you care about performance then don't use "host" with Windows 11 / Windows Server 2025 for now, try something like x86-64-v4. This will disable VBS inside Windows which should help a bit. You may want to use virtio-win-0.1.271 drivers, not...
Hi Antonine-UY
If you have enough NAS storage (NFS) you could use PVE integrated vzdump backups instead of PBS.
Downside is you can't encrypt backups and syncing them offsite (3-2-1 backup rule) needs significantly more bandwith / time - vzdumps...
Warum trifft das eigentlich auch zu, wenn der Stop mode verwendet wird?
Was übersehe ich dabei?
- VM runtergefahren.
- Snapshot der VM.
- VM started und ändert Block 10.
- Die Änderung an Block 10 ist dem Backup und PBS doch total egal, weil...
Verify speed: 1068.22 MB/s is a bit curious given the rest of the numbers.. but I guess this should be amortized when processing chunks in parallel. the TLS speed also looks better than your actual throughput.
dd-ing /dev/zero is not a valid...
what does "proxmox-backup-client benchmark --repository <...>" say if you run it on one of the PVE hosts? at what speed does a single backup task peak?
might be that the actual transfer over HTTP 2.0/TLS with a single TCP connection is your...
L2ARC is awesome, even on bad SSDs. You can use an old 256GB SSD you have lying around or get one used. As long as it is not too old or some bottom tier QLC drive or one with very few TBW, you should be fine. Google TBW of the disk you want to...
Wanted to say thanks for this write-up. It was helpful as I dove into in-place upgrades on some Windows 10 VMs.
Just wanted to add, for anyone who may face mbr2gpt issues. In my case, I found why mbr2gpt validation was failing in...
You don't have to spend much on hardware upgrades. Even adding a simple cheap old SSD for PBS would probably do wonders.
Also do you have a slow uplink? If not, I would not even bother with a local PBS.
We are getting there. So the local PBS is a mirror and the remote PBS uses a RAIDZ2 dataset, but that should be fine, since that stores mostly 4mb chunks.
What would worry me are that ZFS and external are danger zone, and that the RAIDZ...
Is that the archive one?
Which one is that? Also there is no RAID1 in ZFS, do you mean mirror?
No RAID6 in ZFS, do you mean RAIDZ2?
So I don't fully understand your current setup, what is where, and what is the problem. So I will make a wild...
Über Datacenter > Storage das NAS einbinden und da Backups drauf erlauben (ist per default an)
Dann kannst du über Datacenter > Backup deinen Backupjob einrichten und das NAS als Ziel nutzen.
Du kannst auch mehrere Ordner vom NAS als verschiedene...
This is a PVE with two VMs 80GB in size. I don't plan on running another local PBS for that.
I am not even really keen on using fleecing, simply because I have not yet understood why it should be a problem and not a bug to begin with.
Ahh...
I mean, it is the QEMU guest agent service having the issue, so I would argue it is not a Windows issue, but a QEMU on Windows issue. Just like the high DB load issue with VirtIO is not Windows issue but a QEMU on Windows issue.
Sure, that is...
Gave it a try based on this. Still think that this is just a workaround and even 120s won't help. It even says:
I don't think so, since my other PVE can backup just fine without fleecing. There is also basically no io pressure during that time...