Has PBS or PVE transfer rate issues?

[Leprelnx]

HI at all,

I have some performances issues and I have to figure out who to blame.
Is the backup process a child of the kvm process on pve: eg. drive_backup "qemu monitor" ?
If it is yes, I think that this pve is a bottleneck for my site (the pbs is ok): two node backing up at different avarage speed(both bitmap was invalid and has been cleared) on same pbs as well the kvm process transer rate is different.

Thx
--
Luca

 

[Leprelnx]

vzdump use the qemu monitor command api to backing up I think, so the reading backup transfer rate depends on the vm load and from the host load. Can the hight vzdum transfer rate compromise the disk I/O by hardening I/O wait?

 

[Leprelnx]

Hi,

I had zfs corruption issues for broken ram. Using the remote (with low performance) for backup I had very high i/o waits so i had set max_workers=1 without results. I am repairing the primary pbs.

Greetings to all