can you move a dataset from one zpool to another ?

[georgelza]

Curious, we know the restrictions around zpools and their underlying vdev's...

Any chance you can move a dataset from one zpool to another, with all it's shares and permissions/ACL's in tact.

G

 

[Patrick M. Hausen]

Of course, although it is not a "move" in the strict sense but a copy. But with all attributes intact, yes.

Code:

zfs snapshot oldpool/dataset@copy
zfs send oldpool/dataset@copy | zfs receive newpool/dataset
zfs destroy oldpool/dataset@copy
zfs destroy newpool/dataset@copy

The last two commands remove the snapshots only, not the entire dataset.

 

[sretalla]

with all it's shares and permissions/ACL's in tact.

Permissions/ACLs, but not shares... you need to modify those yourself.

 

[seanm]

What about a dataset (zvol) that backs a bhyve VM? After the zfs send+recv, can you redirect the VM to the copied zvol? (ex: if you want to move your VMs from a pool of HDs to a pool of SSDs.)

 

[Patrick M. Hausen]

What about a dataset (zvol) that backs a bhyve VM? After the zfs send+recv, can you redirect the VM to the copied zvol?

Yes, that's the point

 

[georgelza]

Will be creating a small test dataset and trying this out.

have 3 HDD's to add to my NAS, in 2 minds if I should create them as their own zpool and move some of the datasets from the current pool to this one, or if I should add the 3 x HDD's as a vdev to the current pool.

thanks.

G

 

[georgelza]

... but loving the features, capability that I'm finding.

G

 

[seanm]

Yes, that's the point

Sorry, I was unclear. What I meant was: where is the UI to repoint the VM to the copied zvol? Do you just edit the "devices" and change the "disk"?

 

[hescominsoon]

Sorry, I was unclear. What I meant was: where is the UI to repoint the VM to the copied zvol? Do you just edit the "devices" and change the "disk"?

yep