zvol cloning

[alexander_ks]

Hello, Can I copy or clone zvol on one zpool1 to zvol on another zpool2? I have to different pools on different physical dicks. First zvol has data for VM through bhyve and I dont want to configure and install VM to the second zvol again.

 

[m0nkey_]

Yes, use zfs send and zfs recv. You need to take a snapshot before you do this.

Code:

# zfs snapshot pool1/zvol@tobecloned
# zfs send pool1/zvol@tobecloned | zfs recv pool2/zvol

 

[alexander_ks]

Yes, use zfs send and zfs recv. You need to take a snapshot before you do this.

Code:

# zfs snapshot pool1/zvol@tobecloned
# zfs send pool1/zvol@tobecloned | zfs recv pool2/zvol

Okey, i try to do this. I do not know much about snapshots and how does it work. But I note, that snaphort is a copy of occupied disk space on zvol. And this snapshot was copied to the second zvol. But on the second zvol I have not anougth disck space to copy full snapshot.
Does the pool2/zvol contain all data from pool1/zvol afrter zfs send/revc copy ?