LXC Backups from my spinning rust RAID1 to a spinning rust RAID10 are ridiculously slow.
(CT 200)
Some are faster,
(CT 203)
(CT 205)
Is this simply because of the size of the containers?
Running a benchmark from my PVE host to the PBS box seems promising,
One final note is that the boot disks of the PBS are incredibly slow, as they are small flash DOMs, but since it's just the boot disk this shouldn't affect backup speed?
(CT 200)
Code:
INFO: root.pxar: had to backup 9.35 GiB of 5.071 TiB (compressed 8.186 GiB) in 19638.29s
INFO: root.pxar: average backup speed: 499.249 KiB/s
INFO: root.pxar: backup was done incrementally, reused 5.062 TiB (99.8%)
INFO: Uploaded backup catalog (10.711 MiB)
INFO: Duration: 19649.61s
Some are faster,
(CT 203)
Code:
INFO: root.pxar: had to backup 455.973 MiB of 2.758 GiB (compressed 181.175 MiB) in 9.15s
INFO: root.pxar: average backup speed: 49.832 MiB/s
INFO: root.pxar: backup was done incrementally, reused 2.313 GiB (83.9%)
INFO: Uploaded backup catalog (515.036 KiB)
INFO: Duration: 9.85s
(CT 205)
Code:
INFO: root.pxar: had to backup 743.333 MiB of 398.554 GiB (compressed 277.813 MiB) in 3662.18s
INFO: root.pxar: average backup speed: 207.847 KiB/s
INFO: root.pxar: backup was done incrementally, reused 397.828 GiB (99.8%)
INFO: Uploaded backup catalog (14.389 MiB)
INFO: Duration: 3663.05s
Is this simply because of the size of the containers?
Running a benchmark from my PVE host to the PBS box seems promising,
Code:
root@Ritsu:~# proxmox-backup-client benchmark --repository 192.168.0.253:RAID10
Uploaded 148 chunks in 5 seconds.
Time per request: 35671 microseconds.
TLS speed: 117.58 MB/s
SHA256 speed: 2163.67 MB/s
Compression speed: 832.12 MB/s
Decompress speed: 1021.85 MB/s
AES256/GCM speed: 2431.79 MB/s
Verify speed: 695.84 MB/s
┌───────────────────────────────────┬─────────────────────┐
│ Name │ Value │
╞═══════════════════════════════════╪═════════════════════╡
│ TLS (maximal backup upload speed) │ 117.58 MB/s (10%) │
├───────────────────────────────────┼─────────────────────┤
│ SHA256 checksum computation speed │ 2163.67 MB/s (107%) │
├───────────────────────────────────┼─────────────────────┤
│ ZStd level 1 compression speed │ 832.12 MB/s (111%) │
├───────────────────────────────────┼─────────────────────┤
│ ZStd level 1 decompression speed │ 1021.85 MB/s (85%) │
├───────────────────────────────────┼─────────────────────┤
│ Chunk verification speed │ 695.84 MB/s (92%) │
├───────────────────────────────────┼─────────────────────┤
│ AES256 GCM encryption speed │ 2431.79 MB/s (67%) │
└───────────────────────────────────┴─────────────────────┘
One final note is that the boot disks of the PBS are incredibly slow, as they are small flash DOMs, but since it's just the boot disk this shouldn't affect backup speed?
Last edited: