Comment by zbentley

Oh, are you zdykstra? If so, thanks for creating an invaluable tool!

> you can create a zpool checkpoint before doing something 'dangerous' (disk swap, pool version upgrade, etc) and if it goes badly, roll back to that checkpoint in ZFSBootMenu on the Pool tab

Good to know! Snapshots meet most of my needs at present (since my boot volume is a single fast drive, snapshots ~~ checkpoints in this case), but I could see this coming in useful for future scenarios where I need to do complex or risky things with data volumes or SAN layout changes.