[pve-devel] backup ceph high iops and slow

[Dmitry Petuhov]

16.10.2014 22:33, VELARTIS Philipp Dürhammer пишет:
> Why do backups with ceph make so high iops?
> I get around 600 iops for 40mb/sec which is by the way very slow for a backup.
> When I make a disk clone from local to ceph I get 120mb/sec (which is the network limit from the old proxmox nodes) and only around 100-120 iops which is the normal for a seq read with 120mb/sec...
> Is the vzdump making problems?
It's not vzdump's issue, but qemu's. See 
http://forum.proxmox.com/threads/19341-Ceph-backup

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