Following is my needs:
1) two disks forming a zfs raid1
2) third disk with ubuntu 16.04 server installed
3) I'd create a few ldx containers in the zfs pool
Sure the above three is quite easy to do, but the following:
4) replace the disk in #2, install ubunt 16.04 or newer (this will happen from time to time)
5) the system uses all the ldx created in #3 after #4, and back to operation as before.
What's the best approach to this? Thanks