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Igor

Backups to Umma

Backups go to SMB mount at /mnt/pve/umma on Igor.

Looks like compression is not on the fly but it first dumps data uncompressed and then runs compression which fails on SMB mount... https://community.nethserver.org/t/proxmox-help-needed-proxmox-backup-ends-with-broken-pipe/18537/2

Can set where the "temp" file is created so it goes to local drive first:

/etc/vzdump.conf 
tmpdir: /var/lib/vz/dump/temp

This is not true for VM backups... I see files with .dat created during backup where size matches compressed size and "tmpdir" is not used much.

Looks like the problem is on CIFS level:

[9092263.225010] CIFS: Attempting to mount \\192.168.0.8\Igor
[9092263.385599] CIFS: VFS: parse_server_interfaces: malformed interface info
[9092318.751704] CIFS: VFS: \\192.168.0.8 Error -104 sending data on socket to server
[9092318.925726] CIFS: reconnect tcon failed rc = -11
[9092329.032446] CIFS: VFS: \\192.168.0.8 Error -32 sending data on socket to server
[9092338.103933] CIFS: VFS: \\192.168.0.8 Error -104 sending data on socket to server
[9092348.628780] CIFS: VFS: \\192.168.0.8 Error -32 sending data on socket to server
[9092358.347996] CIFS: VFS: \\192.168.0.8 Error -104 sending data on socket to server
[9092368.365350] CIFS: VFS: \\192.168.0.8 Error -32 sending data on socket to server
[9092368.367144] CIFS: VFS: \\192.168.0.8 Error -512 sending data on socket to server
[9092378.738559] CIFS: VFS: \\192.168.0.8 Error -104 sending data on socket to server
[9092379.353289] CIFS: VFS: No writable handle in writepages rc=-11
...
[9092379.387539] CIFS: VFS: No writable handle in writepages rc=-9[9092768.976150] CIFS: VFS: \\192.168.0.8 Error -32 sending data on socket to server
[9092788.488714] CIFS: VFS: \\192.168.0.8 Error -104 sending data on socket to server
[9092788.936658] CIFS: VFS: \\192.168.0.8 Error -104 sending data on socket to server
...

On Umma I have checked:

  • Disable multiple connection from the same IP address
  • Enable asynchronous read (auto select for next option)
  • Enable SMB3 Multichannel

And now I don't get parse_server_interfaces: malformed interface info.

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