I recently installed a proxmox server with local-btrfs
It is a 2 Disk raid 1 with size 1.8 TB
btrfs fi usage / tells me that 1.67 TB are in use
In fact only 934 GB are in Files on the disk
When checking the diskspace with the btrfs tool btdu I can see that the disk space of the vms is...
Well, in the Hoster environment the main Problem is the shared 1 GBit/s uplink to the proxmox server which is used by several vms+Backup
This 1GBit/s Uplink is the main Bottleneck. I cannot change that within budget so i somehow have to live with it and work around.
I have a setup at a Hoster where the Proxmox VM Server is damned fast using NVMEs and the Proxmox Backup Server is terrible slow, for example network Bandwidth sometimes is only 30 MB/s
What happens now: The Backup ov VM starts really fast with let's say 500 MB/s reading speed.
A customer has 2 Servers at Hetzner in 2 Different IP subnets and in 2 Different Datacenters and asked me to modernize them.
I would install a proxmox pve distribution on each server.
Does someone have experiences if it is a good idea to cluster the servers in a pve cluster ? I could easily...
I have a Proxmox Backup Server in Data Center and would like to have a copy in another location.
Proxmox Sync is no option, there is not enough online Bandwidth
Tape also is no option, we will not invest again in tape technology
I am taking a differential zfs snapshot on harddisk from...
Thanks for inspiring me, this sounds like a good start. Yes the datastore is a zfs dataset.
I am thinking about an initial zfs synchronisation on site and then only transferring differential snapshots. They should fit on an external drive for transport.
I still have the query-pbs-bitmap-info error even with my timeout modification and the newest 2.0.14 packages.
My Backup Server is also not so slow, it is a 4 mirror 8 disk zfs raid 10 and even has zfs special devices on nvme.
Also the server ist idle during backup time and not doing anything...
I have a Backup Server with around 30TB of Backup Data. I would like to take all Backups offsite once a week.
Unfortunately the daily change of Backup Blocks are so many that we cannot replicate them online. I mean it would be complete overkill to have a 10 GBit/s Line only for replicating...
I applied the patch, now I get another error message.
Yes, the Backup Server at Hetzner is a little slower than my servers in my own datacenter. But it is not really slow.
INFO: starting new backup job: vzdump 104 --node zw-pm-1 --mode snapshot --storage backups21 --remove 0
i have a setup at hetzner with a pbs an 8 drive zfs raid10
Here every time when a vm is backed up to the backup server the vm will crash with io/errors and cpu stalls.
If you need an environment to repdroduce the errors i can provide access to the setup
no Problems with fast backup server hardware and fast servers. But on a proxmox environment at a hoster i see the same.
It seems that during backups blocks are locked for write until they are completely written to the backup server. If this takes too long vm will crash.
On the vms i...