Clone Snapshot

[Johnny Fartpants]

Does anyone know if when you clone a snapshot in FreeNAS if it promotes it at the same time ie breaks it's relationship from its parent snapshot or is it still reliant on the parent snapshot still being present in the system and therefore if that parent snapshot expires so will your clone?

 

[rogerh]

My impression is that the clone is an independent copy and unaffected by what happens to the parent dataset or any other data on the same volume. See what the experts say.

 

[Ericloewe]

A snapshot will keep all the blocks it needs for itself. Blocks are marked free once they're not in use by any snapshot or the current state.

At least that's my understanding.

 

[cyberjock]

A clone is nothing but a "mount" of the particular snapshot. You can't delete the snapshot while it is cloned, likewise the clone takes up only like 8KB of space while mounted.

 

[rogerh]

A clone is nothing but a "mount" of the particular snapshot. You can't delete the snapshot while it is cloned, likewise the clone takes up only like 8KB of space while mounted.

OK, sorry, I was totally wrong about what a clone is. Thanks for the correction. What I was thinking of was more in the nature of a copy of a clone.