> On 10/07/20 15:41, Dietmar Maurer wrote: > >> Are you planning to support also CEPH (or other distributed file > >> systems) as destination storage backend? > > > > It is already possible to put the datastore a a mounted cephfs, or > > anything you can mount on the host. > > Is this "mount" managed by PBS or you have to "manually" mount it > outside PBS?
Not sure what kind of management you need for that? Usually people mount filesystems using /etc/fstab or by creating systemd mount units. > > But this means that you copy data over the network multiple times, > > so this is not the best option performance wise... > > True, PBS will act as a gateway to the backing storage cluster, but the > data will be only re-routed to the final destination (in this case and > OSD) not copied over (putting aside the CEPH replication policy). That is probably a very simplistic view of things. It involves copying data multiple times, so I will affect performance by sure. Note: We take about huge amounts of data. > So > performance wise you are limited by the bandwidth of the PBS network > interfaces (as you will be for a local network storage server) and to > the speed of the backing CEPH cluster. Maybe you will loose something on > raw performance (but depending on the CEPH cluster you could gain also > something) but you will gain the ability of "easily" expandable storage > space and no single point of failure. Sure, that's true. Would be interesting to get some performance stats for such setup... _______________________________________________ pve-user mailing list [email protected] https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user
