Have you tried to copy a large file directly from the host(s) to the nfs server, how's the speed on that?
Have you checked if there's a bandwidth limit set for the backups in pve datacenter options? Try running a single, manual backup on a specific vm to the nfs server, how's its speed compare to the scheduled backups? On Wed, 20 Jul 2022 at 10:12, Сергей Цаболов <[email protected]> wrote: > Hi, to all. > > In our PVE cluster have 5 hosts with ceph storage on all hosts disks. > > I setup backups to save on Synology with NFS storage. > > For 2-3 moths right now backups load very long time and not fast to > finish backup from all hosts. > > If we change the MTU from default 1500 on Synology and on hosts to 9000 > MTU is possible to make it fast. > > Synology and the hosts connect to the Fiber Optic 10GB switch but the > mtu on switch and on the hosts for now is default. > > If I ping to Synology from hosts : > > ping -s 9000 -d 192.168.8.23 > PING 192.168.8.23 (192.168.8.23) 9000(9028) bytes of data. > 9008 bytes from 192.168.8.23: icmp_seq=1 ttl=63 time=1.03 ms > 9008 bytes from 192.168.8.23: icmp_seq=2 ttl=63 time=0.223 ms > 9008 bytes from 192.168.8.23: icmp_seq=3 ttl=63 time=0.229 ms > > I have the answer. > > When I test connection with between the hosts PVE connect : > > iperf3 -c 10.10.29.16 > Connecting to host 10.10.29.16, port 5201 > [ 5] local 10.10.29.10 port 51502 connected to 10.10.29.16 port 5201 > [ ID] Interval Transfer Bitrate Retr Cwnd > [ 5] 0.00-1.00 sec 1.07 GBytes 9.19 Gbits/sec 1089 639 KBytes > [ 5] 1.00-2.00 sec 1.09 GBytes 9.38 Gbits/sec 52 1.17 MBytes > [ 5] 2.00-3.00 sec 1.09 GBytes 9.38 Gbits/sec 0 1.23 MBytes > [ 5] 3.00-4.00 sec 1.09 GBytes 9.37 Gbits/sec 0 1.27 MBytes > [ 5] 4.00-5.00 sec 1.07 GBytes 9.20 Gbits/sec 608 789 KBytes > [ 5] 5.00-6.00 sec 1.09 GBytes 9.38 Gbits/sec 45 1.09 MBytes > [ 5] 6.00-7.00 sec 1.09 GBytes 9.37 Gbits/sec 0 1.26 MBytes > [ 5] 7.00-8.00 sec 1.08 GBytes 9.28 Gbits/sec 411 872 KBytes > [ 5] 8.00-9.00 sec 1.09 GBytes 9.33 Gbits/sec 114 1.14 MBytes > [ 5] 9.00-10.00 sec 1.08 GBytes 9.30 Gbits/sec 321 676 KBytes > - - - - - - - - - - - - - - - - - - - - - - - - - > [ ID] Interval Transfer Bitrate Retr > [ 5] 0.00-10.00 sec 10.8 GBytes 9.32 Gbits/sec 2640 > sender > [ 5] 0.00-10.00 sec 10.8 GBytes 9.31 Gbits/sec > receiver > > But the speed to backup to NFS is very low. > > Can some one give me suggestion how I can make faster the NFS backup on > hosts (all hosts is now production). > > -- > Sergey TS > The best Regard > > _______________________________________________ > pve-user mailing list > [email protected] > https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user > _______________________________________________ > pve-user mailing list > [email protected] > https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user > _______________________________________________ pve-user mailing list [email protected] https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user
