snapshot of rpool - backup

[eddi1984]

Hi,

I have proxmox 4.1 (initial install was 4.0) on a pair of SSD's in mirror using ZFS.

I want to do a snapshot of rpool and than send/receive the snapshot for the purpose of backup.

For reasons unknown (and I am by far no expert), I can create the snapshot (at least its listed) but send/receive will send only a small file. However, the actual rpool is almost 50GB big and it should send that much the first time it does a send/receive. At least that was the behavior that I observed when sending the VMs snapshots over the wire.

See here:

root@VMNode01:/# zfs list -t snapshot
NAME  USED  AVAIL  REFER  MOUNTPOINT
rpool@13Dec2015  0  -  96K  -
root@VMNode01:/# zfs send -R rpool@13Dec2015 | mbuffer -s 128k -m 2G | ssh root@somedomain.com 'mbuffer -s 128k -m 2G | zfs recv -Fduv MainVol/BACKUP'
WARNING: could not send rpool/ROOT@13Dec2015: does not exist
WARNING: could not send rpool/ROOT/pve-1@13Dec2015: does not exist
WARNING: could not send rpool/swap@13Dec2015: does not exist
WARNING: could not send rpool/ROOT@13Dec2015: does not exist
WARNING: could not send rpool/ROOT/pve-1@13Dec2015: does not exist
WARNING: could not send rpool/swap@13Dec2015: does not exist

summary: 44.0 KiByte in  0.1sec - average of  860 KiB/s
root@somedomain.com's password:
receiving full stream of rpool@13Dec2015 into MainVol/BACKUP@13Dec2015
received 41.2KB stream in 1 seconds (41.2KB/sec)

summary: 44.0 KiByte in  0.4sec - average of  112 KiB/s

root@VMNode01:/#

Anybody an idea?

 

[eddi1984]

Alright, figured it out ...

zfs snapshot -r rpool@xyz

will include all recursive folders as per Oracle documentation here: http://docs.oracle.com/cd/E19253-01/819-5461/ghzwu/index.html