backup problem

D

dav.ge

Active Member
Feb 26, 2019
27
3
43
41
hello,

i 've a cluster with 4 node proxmox ve 6.2-10
nodes shares NFS storage (2 nas, 1 fileserver)
since about 1 month i have been having problems with backups of almost all vm . vm have their disk on nfs storage. backup run usually on other nfs storage.
Backups starts regularly, even if one with poor performance, and then has timeouts of hours.
This happens regardless of source and destination storage. Occurs most often with snapshot backup mode but also with "stop" mode .
I don't think it's a network problem. Virtual machines are fast and responsive when running. The cluster synchronizes correctly and I have no problem migrating and making the HA work.
What is going on?

Code: 
()
INFO: starting new backup job: vzdump 104 --remove 0 --storage fileserver --compress zstd --mode snapshot --node tourronde
INFO: Starting Backup of VM 104 (qemu)
INFO: Backup started at 2020-07-29 10:57:08
INFO: status = running
INFO: VM Name: varie-remapp
INFO: include disk 'scsi1' 'annapurna:104/vm-104-disk-0.raw' 121G
INFO: backup mode: snapshot
INFO: ionice priority: 7
INFO: creating vzdump archive '/mnt/pve/fileserver/dump/vzdump-qemu-104-2020_07_29-10_57_08.vma.zst'
INFO: issuing guest-agent 'fs-freeze' command
INFO: issuing guest-agent 'fs-thaw' command
INFO: started backup task '8dee07e9-927e-4eed-be4d-a5a347f4acf2'
INFO: resuming VM again
INFO: status: 0% (127.4 MiB of 121.0 GiB), duration 4, read: 31.9 MiB/s, write: 15.8 MiB/s
INFO: status: 1% (1.2 GiB of 121.0 GiB), duration 24, read: 56.0 MiB/s, write: 49.8 MiB/s
INFO: status: 2% (2.5 GiB of 121.0 GiB), duration 49, read: 51.9 MiB/s, write: 50.0 MiB/s
INFO: status: 3% (3.7 GiB of 121.0 GiB), duration 69, read: 60.2 MiB/s, write: 59.5 MiB/s
INFO: status: 4% (4.9 GiB of 121.0 GiB), duration 89, read: 62.2 MiB/s, write: 61.6 MiB/s
INFO: status: 5% (6.1 GiB of 121.0 GiB), duration 109, read: 63.1 MiB/s, write: 62.7 MiB/s
INFO: status: 6% (7.3 GiB of 121.0 GiB), duration 129, read: 60.6 MiB/s, write: 58.7 MiB/s
INFO: status: 7% (8.5 GiB of 121.0 GiB), duration 149, read: 62.9 MiB/s, write: 61.3 MiB/s
INFO: status: 8% (9.7 GiB of 121.0 GiB), duration 171, read: 55.8 MiB/s, write: 55.1 MiB/s
INFO: status: 9% (10.9 GiB of 121.0 GiB), duration 186, read: 81.0 MiB/s, write: 76.2 MiB/s
INFO: status: 10% (12.1 GiB of 121.0 GiB), duration 201, read: 81.5 MiB/s, write: 78.6 MiB/s
INFO: status: 11% (13.3 GiB of 121.0 GiB), duration 224, read: 55.0 MiB/s, write: 54.9 MiB/s
INFO: status: 12% (14.6 GiB of 121.0 GiB), duration 244, read: 62.5 MiB/s, write: 61.0 MiB/s
INFO: status: 13% (15.7 GiB of 121.0 GiB), duration 263, read: 63.7 MiB/s, write: 63.3 MiB/s
INFO: status: 14% (17.0 GiB of 121.0 GiB), duration 285, read: 58.5 MiB/s, write: 57.9 MiB/s
INFO: status: 15% (18.2 GiB of 121.0 GiB), duration 8312, read: 151.6 KiB/s, write: 6.2 KiB/s
INFO: status: 16% (19.4 GiB of 121.0 GiB), duration 14221, read: 215.2 KiB/s, write: 297.0 B/s
INFO: status: 17% (20.6 GiB of 121.0 GiB), duration 16972, read: 459.8 KiB/s, write: 14.4 KiB/s
INFO: status: 18% (21.8 GiB of 121.0 GiB), duration 18830, read: 680.3 KiB/s, write: 138.8 KiB/s
INFO: status: 19% (23.0 GiB of 121.0 GiB), duration 20666, read: 705.8 KiB/s, write: 356.0 B/s
INFO: status: 20% (24.2 GiB of 121.0 GiB), duration 20684, read: 68.9 MiB/s, write: 67.7 MiB/s
INFO: status: 21% (25.4 GiB of 121.0 GiB), duration 20704, read: 62.5 MiB/s, write: 62.1 MiB/s
INFO: status: 22% (26.6 GiB of 121.0 GiB), duration 20726, read: 55.9 MiB/s, write: 55.7 MiB/s
INFO: status: 23% (27.9 GiB of 121.0 GiB), duration 20750, read: 52.7 MiB/s, write: 50.0 MiB/s
INFO: status: 24% (29.1 GiB of 121.0 GiB), duration 20766, read: 75.5 MiB/s, write: 75.2 MiB/s
INFO: status: 25% (30.3 GiB of 121.0 GiB), duration 20791, read: 52.2 MiB/s, write: 52.0 MiB/s
INFO: status: 26% (31.5 GiB of 121.0 GiB), duration 20814, read: 50.4 MiB/s, write: 48.4 MiB/s
INFO: status: 27% (32.7 GiB of 121.0 GiB), duration 20830, read: 77.8 MiB/s, write: 70.8 MiB/s
INFO: status: 28% (34.0 GiB of 121.0 GiB), duration 20853, read: 56.8 MiB/s, write: 52.8 MiB/s
INFO: status: 29% (35.2 GiB of 121.0 GiB), duration 20876, read: 53.5 MiB/s, write: 51.4 MiB/s
INFO: status: 30% (36.3 GiB of 121.0 GiB), duration 20893, read: 69.0 MiB/s, write: 65.8 MiB/s
INFO: status: 31% (37.6 GiB of 121.0 GiB), duration 20917, read: 53.0 MiB/s, write: 49.5 MiB/s
INFO: status: 32% (38.8 GiB of 121.0 GiB), duration 20940, read: 54.2 MiB/s, write: 52.3 MiB/s
INFO: status: 33% (39.9 GiB of 121.0 GiB), duration 20976, read: 33.3 MiB/s, write: 31.8 MiB/s
INFO: status: 34% (41.2 GiB of 121.0 GiB), duration 21005, read: 43.4 MiB/s, write: 39.3 MiB/s
INFO: status: 35% (42.4 GiB of 121.0 GiB), duration 21026, read: 57.8 MiB/s, write: 52.8 MiB/s
INFO: status: 36% (43.6 GiB of 121.0 GiB), duration 21057, read: 40.1 MiB/s, write: 31.5 MiB/s
INFO: status: 37% (44.8 GiB of 121.0 GiB), duration 22639, read: 800.2 KiB/s, write: 36.4 KiB/s
INFO: status: 38% (46.0 GiB of 121.0 GiB), duration 22758, read: 10.8 MiB/s, write: 8.3 MiB/s
INFO: status: 39% (47.2 GiB of 121.0 GiB), duration 22779, read: 58.1 MiB/s, write: 58.1 MiB/s
INFO: status: 40% (48.4 GiB of 121.0 GiB), duration 22803, read: 51.1 MiB/s, write: 51.1 MiB/s
INFO: status: 41% (49.6 GiB of 121.0 GiB), duration 23583, read: 1.6 MiB/s, write: 1.1 MiB/s
INFO: status: 42% (50.9 GiB of 121.0 GiB), duration 24273, read: 1.9 MiB/s, write: 612.8 KiB/s
INFO: status: 43% (52.0 GiB of 121.0 GiB), duration 24293, read: 60.0 MiB/s, write: 57.7 MiB/s
INFO: status: 44% (53.2 GiB of 121.0 GiB), duration 31623, read: 171.5 KiB/s, write: 42.9 KiB/s
INFO: status: 45% (54.5 GiB of 121.0 GiB), duration 39328, read: 164.5 KiB/s, write: 8.0 B/s
INFO: status: 46% (55.7 GiB of 121.0 GiB), duration 43249, read: 323.1 KiB/s, write: 0 B/s
INFO: status: 47% (56.9 GiB of 121.0 GiB), duration 44140, read: 1.4 MiB/s, write: 507.3 KiB/s
INFO: status: 48% (58.1 GiB of 121.0 GiB), duration 48077, read: 322.4 KiB/s, write: 16.0 B/s
INFO: status: 49% (59.3 GiB of 121.0 GiB), duration 48877, read: 1.5 MiB/s, write: 564.1 KiB/s
INFO: status: 50% (60.5 GiB of 121.0 GiB), duration 50341, read: 871.9 KiB/s, write: 12.8 KiB/s
INFO: status: 51% (61.7 GiB of 121.0 GiB), duration 54242, read: 324.0 KiB/s, write: 108.2 KiB/s
INFO: status: 52% (62.9 GiB of 121.0 GiB), duration 74764, read: 61.9 KiB/s, write: 3.0 B/s
#here i stopped backup process
ERROR: interrupted by signal
INFO: aborting backup job
 
This happens regardless of source and destination storage.
Click to expand...
Does this include local storages?
 
Code: 
()
INFO: starting new backup job: vzdump 1002 103 --mode snapshot --storage BCKoffsite --mailto d****** --mailnotification always --quiet 1 --compress zstd
INFO: skip external VMs: 103
INFO: Starting Backup of VM 1002 (qemu)
INFO: Backup started at 2020-08-02 16:30:02
INFO: status = running
INFO: VM Name: licenze
INFO: include disk 'scsi0' 'annapurna:1002/vm-1002-disk-1.qcow2' 450G
INFO: backup mode: snapshot
INFO: ionice priority: 7
INFO: creating vzdump archive '/mnt/pve/BCKoffsite/dump/vzdump-qemu-1002-2020_08_02-16_30_02.vma.zst'
INFO: issuing guest-agent 'fs-freeze' command
INFO: issuing guest-agent 'fs-thaw' command
INFO: started backup task '7462e6ae-0201-43ed-a7ea-242ed4115594'
INFO: resuming VM again
INFO: status: 0% (94.2 MiB of 450.0 GiB), duration 3, read: 31.4 MiB/s, write: 28.5 MiB/s
INFO: status: 1% (4.5 GiB of 450.0 GiB), duration 319, read: 14.4 MiB/s, write: 13.3 MiB/s
INFO: status: 2% (9.0 GiB of 450.0 GiB), duration 653, read: 13.8 MiB/s, write: 13.5 MiB/s
INFO: status: 3% (13.5 GiB of 450.0 GiB), duration 1149, read: 9.3 MiB/s, write: 8.8 MiB/s
INFO: status: 4% (18.0 GiB of 450.0 GiB), duration 1864, read: 6.4 MiB/s, write: 6.4 MiB/s
INFO: status: 5% (22.5 GiB of 450.0 GiB), duration 2520, read: 7.0 MiB/s, write: 6.8 MiB/s
INFO: status: 6% (27.0 GiB of 450.0 GiB), duration 3109, read: 7.8 MiB/s, write: 7.7 MiB/s
INFO: status: 7% (31.5 GiB of 450.0 GiB), duration 3741, read: 7.3 MiB/s, write: 6.9 MiB/s
INFO: status: 8% (36.0 GiB of 450.0 GiB), duration 4849, read: 4.2 MiB/s, write: 2.3 MiB/s
INFO: status: 9% (40.5 GiB of 450.0 GiB), duration 6353, read: 3.1 MiB/s, write: 1.6 MiB/s
INFO: status: 10% (45.0 GiB of 450.0 GiB), duration 6948, read: 7.8 MiB/s, write: 7.6 MiB/s
INFO: status: 11% (49.5 GiB of 450.0 GiB), duration 7341, read: 11.8 MiB/s, write: 11.8 MiB/s
INFO: status: 12% (54.0 GiB of 450.0 GiB), duration 7724, read: 12.0 MiB/s, write: 11.8 MiB/s
INFO: status: 13% (58.5 GiB of 450.0 GiB), duration 8111, read: 11.9 MiB/s, write: 11.9 MiB/s
INFO: status: 14% (63.0 GiB of 450.0 GiB), duration 8482, read: 12.4 MiB/s, write: 12.4 MiB/s
INFO: status: 15% (67.5 GiB of 450.0 GiB), duration 8897, read: 11.1 MiB/s, write: 11.1 MiB/s
INFO: status: 16% (72.0 GiB of 450.0 GiB), duration 9315, read: 11.0 MiB/s, write: 11.0 MiB/s
INFO: status: 17% (76.5 GiB of 450.0 GiB), duration 9723, read: 11.3 MiB/s, write: 11.3 MiB/s
INFO: status: 18% (81.0 GiB of 450.0 GiB), duration 10223, read: 9.2 MiB/s, write: 8.3 MiB/s
INFO: status: 19% (85.5 GiB of 450.0 GiB), duration 10619, read: 11.6 MiB/s, write: 11.6 MiB/s
INFO: status: 20% (90.0 GiB of 450.0 GiB), duration 12690, read: 2.2 MiB/s, write: 773.1 KiB/s
INFO: status: 21% (94.5 GiB of 450.0 GiB), duration 16562, read: 1.2 MiB/s, write: 4.0 KiB/s
INFO: status: 22% (99.0 GiB of 450.0 GiB), duration 18317, read: 2.6 MiB/s, write: 1.2 MiB/s
INFO: status: 23% (103.5 GiB of 450.0 GiB), duration 18703, read: 11.9 MiB/s, write: 11.9 MiB/s
INFO: status: 24% (108.0 GiB of 450.0 GiB), duration 19108, read: 11.4 MiB/s, write: 11.4 MiB/s
INFO: status: 25% (112.5 GiB of 450.0 GiB), duration 19524, read: 11.1 MiB/s, write: 11.1 MiB/s
INFO: status: 26% (117.0 GiB of 450.0 GiB), duration 19936, read: 11.2 MiB/s, write: 11.2 MiB/s
INFO: status: 27% (121.5 GiB of 450.0 GiB), duration 20349, read: 11.2 MiB/s, write: 11.2 MiB/s
INFO: status: 28% (126.0 GiB of 450.0 GiB), duration 20761, read: 11.2 MiB/s, write: 11.2 MiB/s
INFO: status: 29% (130.5 GiB of 450.0 GiB), duration 21171, read: 11.3 MiB/s, write: 11.3 MiB/s
INFO: status: 30% (135.0 GiB of 450.0 GiB), duration 21583, read: 11.2 MiB/s, write: 11.2 MiB/s
INFO: status: 31% (139.5 GiB of 450.0 GiB), duration 21997, read: 11.1 MiB/s, write: 11.1 MiB/s
INFO: status: 32% (144.0 GiB of 450.0 GiB), duration 22407, read: 11.2 MiB/s, write: 11.2 MiB/s
INFO: status: 33% (148.5 GiB of 450.0 GiB), duration 22817, read: 11.3 MiB/s, write: 11.3 MiB/s
INFO: status: 34% (153.0 GiB of 450.0 GiB), duration 23226, read: 11.2 MiB/s, write: 11.2 MiB/s
INFO: status: 35% (157.5 GiB of 450.0 GiB), duration 23641, read: 11.1 MiB/s, write: 11.1 MiB/s
INFO: status: 36% (162.0 GiB of 450.0 GiB), duration 24054, read: 11.1 MiB/s, write: 11.1 MiB/s
INFO: status: 37% (166.5 GiB of 450.0 GiB), duration 26338, read: 2.0 MiB/s, write: 388.9 KiB/s
INFO: status: 38% (171.0 GiB of 450.0 GiB), duration 29330, read: 1.5 MiB/s, write: 0 B/s
INFO: status: 39% (175.5 GiB of 450.0 GiB), duration 32405, read: 1.5 MiB/s, write: 0 B/s
INFO: status: 40% (180.0 GiB of 450.0 GiB), duration 35214, read: 1.6 MiB/s, write: 0 B/s
INFO: status: 41% (184.5 GiB of 450.0 GiB), duration 38048, read: 1.6 MiB/s, write: 0 B/s
INFO: status: 42% (189.0 GiB of 450.0 GiB), duration 41053, read: 1.5 MiB/s, write: 0 B/s
INFO: status: 43% (193.5 GiB of 450.0 GiB), duration 44344, read: 1.4 MiB/s, write: 0 B/s
INFO: status: 44% (198.0 GiB of 450.0 GiB), duration 47106, read: 1.7 MiB/s, write: 0 B/s
INFO: status: 45% (202.5 GiB of 450.0 GiB), duration 50081, read: 1.6 MiB/s, write: 0 B/s
INFO: status: 46% (207.0 GiB of 450.0 GiB), duration 53299, read: 1.4 MiB/s, write: 0 B/s
INFO: status: 47% (211.5 GiB of 450.0 GiB), duration 56577, read: 1.4 MiB/s, write: 0 B/s
INFO: status: 48% (216.0 GiB of 450.0 GiB), duration 59864, read: 1.4 MiB/s, write: 0 B/s
INFO: status: 49% (220.5 GiB of 450.0 GiB), duration 63273, read: 1.4 MiB/s, write: 0 B/s
INFO: status: 50% (225.0 GiB of 450.0 GiB), duration 66510, read: 1.4 MiB/s, write: 0 B/s
INFO: status: 51% (229.5 GiB of 450.0 GiB), duration 69441, read: 1.6 MiB/s, write: 0 B/s
INFO: status: 52% (234.0 GiB of 450.0 GiB), duration 72485, read: 1.5 MiB/s, write: 0 B/s
INFO: status: 53% (238.5 GiB of 450.0 GiB), duration 74922, read: 1.9 MiB/s, write: 0 B/s
INFO: status: 54% (243.0 GiB of 450.0 GiB), duration 77446, read: 1.8 MiB/s, write: 0 B/s
INFO: status: 55% (247.5 GiB of 450.0 GiB), duration 80260, read: 1.6 MiB/s, write: 0 B/s
INFO: status: 56% (252.0 GiB of 450.0 GiB), duration 83011, read: 1.7 MiB/s, write: 0 B/s
INFO: status: 57% (256.5 GiB of 450.0 GiB), duration 85383, read: 1.9 MiB/s, write: 0 B/s
INFO: status: 58% (261.0 GiB of 450.0 GiB), duration 87569, read: 2.1 MiB/s, write: 0 B/s
 
to local storage ... same problem
INFO: starting new backup job: vzdump 1002 --mode snapshot --remove 0 --storage local --node tacul --compress zstd
INFO: Starting Backup of VM 1002 (qemu)
INFO: Backup started at 2020-08-03 17:27:17
INFO: status = running
INFO: VM Name: licenze
INFO: include disk 'scsi0' 'annapurna:1002/vm-1002-disk-1.qcow2' 450G
INFO: backup mode: snapshot
INFO: ionice priority: 7
INFO: creating vzdump archive '/var/lib/vz/dump/vzdump-qemu-1002-2020_08_03-17_27_17.vma.zst'
INFO: issuing guest-agent 'fs-freeze' command
INFO: issuing guest-agent 'fs-thaw' command
INFO: started backup task '799649d0-9619-4d05-b77b-0a2c99888e25'
INFO: resuming VM again
INFO: status: 0% (102.6 MiB of 450.0 GiB), duration 3, read: 34.2 MiB/s, write: 31.2 MiB/s
INFO: status: 1% (4.5 GiB of 450.0 GiB), duration 268, read: 17.1 MiB/s, write: 15.8 MiB/s
INFO: status: 2% (9.0 GiB of 450.0 GiB), duration 534, read: 17.3 MiB/s, write: 17.0 MiB/s
INFO: status: 3% (13.5 GiB of 450.0 GiB), duration 749, read: 21.4 MiB/s, write: 20.3 MiB/s
INFO: status: 4% (18.0 GiB of 450.0 GiB), duration 924, read: 26.4 MiB/s, write: 26.3 MiB/s
INFO: status: 5% (22.5 GiB of 450.0 GiB), duration 1113, read: 24.3 MiB/s, write: 24.3 MiB/s
INFO: status: 6% (27.0 GiB of 450.0 GiB), duration 1338, read: 20.5 MiB/s, write: 19.6 MiB/s
INFO: status: 7% (31.5 GiB of 450.0 GiB), duration 1569, read: 20.0 MiB/s, write: 19.3 MiB/s
INFO: status: 8% (36.0 GiB of 450.0 GiB), duration 2009, read: 10.5 MiB/s, write: 7.6 MiB/s
INFO: status: 9% (40.5 GiB of 450.0 GiB), duration 3820, read: 2.5 MiB/s, write: 836.1 KiB/s
INFO: status: 10% (45.0 GiB of 450.0 GiB), duration 4070, read: 18.4 MiB/s, write: 18.1 MiB/s
INFO: status: 11% (49.5 GiB of 450.0 GiB), duration 4286, read: 21.4 MiB/s, write: 21.3 MiB/s
INFO: status: 12% (54.0 GiB of 450.0 GiB), duration 4483, read: 23.3 MiB/s, write: 23.0 MiB/s
INFO: status: 13% (58.5 GiB of 450.0 GiB), duration 4712, read: 20.1 MiB/s, write: 20.1 MiB/s
INFO: status: 14% (63.0 GiB of 450.0 GiB), duration 4947, read: 19.6 MiB/s, write: 19.6 MiB/s
INFO: status: 15% (67.5 GiB of 450.0 GiB), duration 5172, read: 20.5 MiB/s, write: 20.5 MiB/s
INFO: status: 16% (72.0 GiB of 450.0 GiB), duration 5433, read: 17.6 MiB/s, write: 17.6 MiB/s
INFO: status: 17% (76.5 GiB of 450.0 GiB), duration 5894, read: 10.0 MiB/s, write: 10.0 MiB/s
INFO: status: 18% (81.0 GiB of 450.0 GiB), duration 6327, read: 10.7 MiB/s, write: 9.6 MiB/s
INFO: status: 19% (85.5 GiB of 450.0 GiB), duration 6647, read: 14.4 MiB/s, write: 14.4 MiB/s
INFO: status: 20% (90.0 GiB of 450.0 GiB), duration 8533, read: 2.4 MiB/s, write: 846.2 KiB/s
INFO: status: 21% (94.5 GiB of 450.0 GiB), duration 11477, read: 1.6 MiB/s, write: 8.4 KiB/s
INFO: status: 22% (99.0 GiB of 450.0 GiB), duration 12947, read: 3.1 MiB/s, write: 1.4 MiB/s
INFO: status: 23% (103.5 GiB of 450.0 GiB), duration 13239, read: 15.8 MiB/s, write: 15.8 MiB/s
INFO: status: 24% (108.0 GiB of 450.0 GiB), duration 13510, read: 17.0 MiB/s, write: 17.0 MiB/s
INFO: status: 25% (112.5 GiB of 450.0 GiB), duration 13787, read: 16.6 MiB/s, write: 16.6 MiB/s
INFO: status: 26% (117.0 GiB of 450.0 GiB), duration 14063, read: 16.7 MiB/s, write: 16.7 MiB/s
INFO: status: 27% (121.5 GiB of 450.0 GiB), duration 14319, read: 18.0 MiB/s, write: 18.0 MiB/s
INFO: status: 28% (126.0 GiB of 450.0 GiB), duration 14717, read: 11.6 MiB/s, write: 11.6 MiB/s
INFO: status: 29% (130.5 GiB of 450.0 GiB), duration 15123, read: 11.3 MiB/s, write: 11.3 MiB/s
INFO: status: 30% (135.0 GiB of 450.0 GiB), duration 15546, read: 10.9 MiB/s, write: 10.9 MiB/s
INFO: status: 31% (139.5 GiB of 450.0 GiB), duration 15949, read: 11.4 MiB/s, write: 11.4 MiB/s
INFO: status: 32% (144.0 GiB of 450.0 GiB), duration 16375, read: 10.8 MiB/s, write: 10.8 MiB/s
INFO: status: 33% (148.5 GiB of 450.0 GiB), duration 16781, read: 11.4 MiB/s, write: 11.4 MiB/s
INFO: status: 34% (153.0 GiB of 450.0 GiB), duration 17252, read: 9.8 MiB/s, write: 9.8 MiB/s
INFO: status: 35% (157.5 GiB of 450.0 GiB), duration 17689, read: 10.5 MiB/s, write: 10.5 MiB/s
INFO: status: 36% (162.0 GiB of 450.0 GiB), duration 18152, read: 10.0 MiB/s, write: 10.0 MiB/s
INFO: status: 37% (166.5 GiB of 450.0 GiB), duration 20824, read: 1.7 MiB/s, write: 324.0 KiB/s
INFO: status: 38% (171.0 GiB of 450.0 GiB), duration 23967, read: 1.5 MiB/s, write: 0 B/s
INFO: status: 39% (175.5 GiB of 450.0 GiB), duration 27038, read: 1.5 MiB/s, write: 0 B/s
INFO: status: 40% (180.0 GiB of 450.0 GiB), duration 30287, read: 1.4 MiB/s, write: 0 B/s
INFO: status: 41% (184.5 GiB of 450.0 GiB), duration 33210, read: 1.6 MiB/s, write: 0 B/s
INFO: status: 42% (189.0 GiB of 450.0 GiB), duration 35855, read: 1.7 MiB/s, write: 0 B/s
INFO: status: 43% (193.5 GiB of 450.0 GiB), duration 38719, read: 1.6 MiB/s, write: 0 B/s
INFO: status: 44% (198.0 GiB of 450.0 GiB), duration 41444, read: 1.7 MiB/s, write: 0 B/s
INFO: status: 45% (202.5 GiB of 450.0 GiB), duration 44179, read: 1.7 MiB/s, write: 0 B/s
INFO: status: 46% (207.0 GiB of 450.0 GiB), duration 47441, read: 1.4 MiB/s, write: 0 B/s
INFO: status: 47% (211.5 GiB of 450.0 GiB), duration 50690, read: 1.4 MiB/s, write: 0 B/s
INFO: status: 48% (216.0 GiB of 450.0 GiB), duration 53614, read: 1.6 MiB/s, write: 0 B/s
 
Could you please post the following?
Code: 
qm config 103
qm config 104
qm config 1002
cat /etc/pve/storage.cfg

You can try to modify the --bwlimit and --tmpdir parameters of the vzdump command. Furthermore, it would make sense to monitor the resource usage (CPU, RAM, Disk IO, Network IO) of your system(s) during backup. A problem in one of those places might slow down your backup.
 
Dominic thank you for your reply. resource usage seems ok.

Code: 
root@tacul:~# cat /etc/pve/storage.cfg
dir: local
        path /var/lib/vz
        content iso,backup,vztmpl

lvmthin: local-lvm
        thinpool data
        vgname pve
        content images,rootdir
        nodes gagarin

nfs: annapurna
        export /NFS_1
        path /mnt/pve/annapurna
        server 10.186.144.21
        content images,backup,rootdir,snippets,vztmpl,iso
        maxfiles 2

zfspool: zfs-tr
        pool rpool
        content images,rootdir
        mountpoint /rpool
        nodes tacul

nfs: fileserver
        export /var/nfs-fserv
        path /mnt/pve/fileserver
        server 10.186.144.14
        content snippets,vztmpl,iso,backup,images,rootdir
        maxfiles 1

zfspool: ZFS-arg
        pool rpool
        content images,rootdir
        mountpoint /rpool
        nodes argentera

nfs: BCKoffsite
        export /BCKoffsite
        path /mnt/pve/BCKoffsite
        server 10.186.154.121
        content snippets,vztmpl,iso,backup,images,rootdir
        maxfiles 2

Code: 
root@tourronde:~# qm config 103
agent: 1
balloon: 2944
bootdisk: ide0
cores: 8
ide0: annapurna:103/vm-103-disk-0.raw,size=190G
memory: 4256
name: datastore
net0: e1000=AA:A0:96:30:51:18,bridge=vmbr0
numa: 0
onboot: 1
ostype: win10
scsihw: virtio-scsi-pci
smbios1: uuid=e7a475a4-461a-43dc-a340-70574f44ac25
sockets: 1
startup: order=2
vmgenid: ed2e4a06-57c6-49d0-8cf0-8fa196732fcb

Code: 
root@tourronde:~# qm config 104
agent: 1
balloon: 8192
boot: cdn
bootdisk: scsi1
cores: 12
description: 10.186.144.8%0Adatabase simapro%0AWSUS
memory: 16384
name: varie-remapp
net0: e1000=36:C0:A6:5C:B9:95,bridge=vmbr0
numa: 0
onboot: 1
ostype: win10
scsi1: annapurna:104/vm-104-disk-0.raw,size=121G
scsihw: virtio-scsi-pci
smbios1: uuid=805e92a7-4dab-475c-bcc0-54993b545673
sockets: 2
startup: order=3
vmgenid: 5f4a6bd9-8dd2-487b-a953-4ef417ba5b51

Code: 
root@tacul:~# qm config 1002
agent: 1
balloon: 4096
bootdisk: scsi0
cores: 4
description: server licenze%3A%0Aunisim%0Aptc creo%0Aautocad%0Acomsol%0A144.66%0A144.122
memory: 5120
name: licenze
net0: e1000=00:0c:29:97:cd:df,bridge=vmbr0
net1: e1000=00:0c:29:65:bc:53,bridge=vmbr0
numa: 0
onboot: 1
ostype: win10
scsi0: annapurna:1002/vm-1002-disk-1.qcow2,size=450G
scsihw: virtio-scsi-pci
smbios1: uuid=7be0acb9-33fe-4063-ae84-db95a67515f6,base64=1,serial=MjAyMDAyMTQ=
sockets: 1
startup: order=2,up=70
vmgenid: cb90f8cc-f82f-4702-bdca-23d025bc0e52
root@tacul:~#
 
Thank you! How much bandwidth do you consistently get to your NFS storages for other operations?
 
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