[PVE-User] vzdump taking long time

Christian Meiring christian at meiring.de
Sun May 6 17:43:25 CEST 2018


Hallo,


> Am 04.05.2018 um 08:32 schrieb Andreas Heinlein <aheinlein at gmx.com>:
> 
> Hello,
> 
> I am running nightly backups using vzdump on a single node Proxmox 5.1
> installation, backing up various VMs and LXC containers. I have one
> container (containing an Icinga2 installation)

i had an similar problem with nagios. iirc the write intensity from monitoring was the reason. i tuned the mysql and things got better.

> that has a backup size of
> 1.25 GB and takes almost 2 hours to back up, while another container
> running an elasticsearch db has a backup size of 12 GB and takes only 20
> minutes to back up.
> 
> This is still a test machine, the backup disk is a single external USB
> drive - but even that should give ~ 1GB/minute. What could explain the
> slow backup of the first container?
> 
> Bye,
> Andreas
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