NFS CT backup without local copy ?

[sebalou84]

Hi,

I have an PVE 5.4-6 a dedicated server with a 500GB SSD drive and about 100 GB free space.

One of my CT Takes 180 GB and the problem when I try to backup it (snapshot, tar.gz) to my NFS backup storage is that PVE first try to make backup locally ... and there is not space left.

So is there any way to backup this CT directly to my NFS storage without copying it locally ?

Thanks in advance !

 

[Blaž Bogataj]

Add nfs storage (datacenter, storage).
As backup target select nfs storage. My experience is that backup to nfs storage is faster than local.

Regards Blaž

 

[Dark26]

dans le fichier

/etc/pve/vzdump.cron

rajouter --tmpdir with the directory you want

0 1 * * 1           root vzdump 191 251 252 224 --storage Backup_semaine --quiet 1 --mode stop --mailnotification always --tmpdir /Data/SSD/Temp_backup --mailto toto@tata.fr --compress lzo

 

[sebalou84]

Hello,

I commented the tmpdir instruction into /etc/vzdump.conf to avoid local temporary directory of my backups.

But this is now the output when I try to backup a CT on my NFS backup storage :

INFO: starting new backup job: vzdump 103 --mode snapshot --node ns123456 --storage backup-storage --remove 0 --compress gzip
INFO: Starting Backup of VM 103 (lxc)
INFO: Backup started at 2019-07-23 12:30:38
INFO: status = running
INFO: CT Name: dev1.test.eu
INFO: mode failure - some volumes do not support snapshots
INFO: trying 'suspend' mode instead
INFO: backup mode: suspend
INFO: ionice priority: 7
INFO: CT Name: dev1.test.eu
INFO: temporary directory is on NFS, disabling xattr and acl support, consider configuring a local tmpdir via /etc/vzdump.conf
INFO: starting first sync /proc/17920/root// to /mnt/pve/backup-storage/dump/vzdump-lxc-103-2019_07_23-12_30_38.tmp
INFO: rsync: chown "/mnt/pve/backup-storage/dump/vzdump-lxc-103-2019_07_23-12_30_38.tmp/." failed: Operation not permitted (1)
INFO: rsync: chown "/mnt/pve/backup-storage/dump/vzdump-lxc-103-2019_07_23-12_30_38.tmp/bin" failed: Operation not permitted (1)
INFO: rsync: chown "/mnt/pve/backup-storage/dump/vzdump-lxc-103-2019_07_23-12_30_38.tmp/bin/bzcmp" failed: Operation not permitted (1)
INFO: rsync: chown "/mnt/pve/backup-storage/dump/vzdump-lxc-103-2019_07_23-12_30_38.tmp/bin/bzegrep" failed: Operation not permitted (1)
...
...
...

 

[Blaž Bogataj]

Look like root has no permissions on NFS.

 

[sebalou84]

But if I launch the backup same way with the local tmpdir "activated", I do not have this permissions problems : backups are correctly writed on the NFS.

So i do not know how to give this permissions to root?