Hi, On Wed, Jul 25, 2018, 02:20 Mark Adams <m...@openvs.co.uk> wrote:
> Hi All, > > I have a proxmox 5.1 + ceph cluster of 3 nodes, each with 12 x WD 10TB GOLD > drives. Network is 10Gbps on X550-T2, separate network for the ceph > cluster. > Do a rados bench for testing the cluster performance, spinners are not fast. > I have 1 VM currently running on this cluster, which is debian stretch with > a zpool on it. I'm zfs sending in to it, but only getting around ~15MiB/s > write speed. does this sound right? it seems very slow to me. > Never ever use a CoW filesystem on top of another CoW system. This doubles the writes that need to be made. > Not only that, but when this zfs send is running - I can not do any > parallel sends to any other zfs datasets inside of the same VM. They just > seem to hang, then eventually say "dataset is busy". > Ceph already gives you the possibility of snapshots. You can let PVE do this through CLI or GUI. -- Cheers, Alwin _______________________________________________ pve-user mailing list pve-user@pve.proxmox.com https://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user