Hi,
I got a proxmox cluster 6.1 with 4 nodes, and making daily backups.
I noticed that i cant run simultaneous backup on a single node, so if 2 policies try to launch backup for 2 VM, and they are located on the same node, the first one will start, and the second backup got to wait the first one completion. eventually, i can get this message
INFO: trying to get global lock - waiting...
ERROR: can't aquire lock '/var/run/vzdump.lock' - got timeout
when the second backup has wait too long.
First question is: is there any settings to allow proxmox nodes to run simultaneous backups ?
Second question: if not, is there any plan to allow this feature, and when would it be available for all proxmox community ?
additionnally, to gain disk space on my backup storage, i added the https://ayufan.eu/ incremental backup patch, and this is running fine.
the counterpart is that all backups have now 3x or 4x the duration to backup, compared to the duration without the patch.
for sure, reading the full file to create a differential, makes double work, but this is quite a huge increment.
source storage is the proxmox ceph on SSD, and destination storage is a NFS based on harddisk, but with a lot of spindles, the disk system is really under its limits.
same for the network, with 20GB bandwidth, i see no bottleneck here on monitoring. CPU and RAM are not loaded neither, on proxmox nodes or backup node.
Am i missing something ? any setup to make on the patch side ? or proxmox itself ?
on the paper, i should get really good perfs, but in reality some backups are reading/writing at 9MB, and this is really low.
is there any other tool able to handle properly the backups ? meaning to get concurrent jobs and get performance .
Many thanks in advance for your help on this topic.
regards
Yann
I got a proxmox cluster 6.1 with 4 nodes, and making daily backups.
I noticed that i cant run simultaneous backup on a single node, so if 2 policies try to launch backup for 2 VM, and they are located on the same node, the first one will start, and the second backup got to wait the first one completion. eventually, i can get this message
INFO: trying to get global lock - waiting...
ERROR: can't aquire lock '/var/run/vzdump.lock' - got timeout
when the second backup has wait too long.
First question is: is there any settings to allow proxmox nodes to run simultaneous backups ?
Second question: if not, is there any plan to allow this feature, and when would it be available for all proxmox community ?
additionnally, to gain disk space on my backup storage, i added the https://ayufan.eu/ incremental backup patch, and this is running fine.
the counterpart is that all backups have now 3x or 4x the duration to backup, compared to the duration without the patch.
for sure, reading the full file to create a differential, makes double work, but this is quite a huge increment.
source storage is the proxmox ceph on SSD, and destination storage is a NFS based on harddisk, but with a lot of spindles, the disk system is really under its limits.
same for the network, with 20GB bandwidth, i see no bottleneck here on monitoring. CPU and RAM are not loaded neither, on proxmox nodes or backup node.
Am i missing something ? any setup to make on the patch side ? or proxmox itself ?
on the paper, i should get really good perfs, but in reality some backups are reading/writing at 9MB, and this is really low.
is there any other tool able to handle properly the backups ? meaning to get concurrent jobs and get performance .
Many thanks in advance for your help on this topic.
regards
Yann
