
Great question! Your analysis is correct I'll attempt to highlight the differences in detail in the section below. If not, I'm stumped to know the advantage of a clone jail!įinally, can I promote the clone then delete the snapshot? Would this effectively make it a basejail? My only thought about clonejail would be less space if they were all clones of the same snapshot of the base. I guess I see this as "why is there a choice"? Actually, to me, it would seem that basejail would be the preferred in most cases. is there any need to keep the snapshot for any given jail or can I simply promote the clone then delete the snapshot This makes sense since it is a clone of the original base. the manual says it is linked to the base even if upgraded. Also (snapshot question), if there are multiple snapshots of a single base, does each snapshot take the same amount of space given that the base isn't changing? If there is only one snapshot, would it take the same amount of space as the base? So is there one snapshot per clone jail? Why would it not use a single snapshot (multiple clones) for all jails of that base? it seems it creates a snapshot of the base and names the snapshot specific to the jail name then creates a clone. copies the base to the jail) it seems that each base jail is an independent clean slate. Again, if it is permanent, how does upgrade work? Does it change the mount to the new base? Update) would affect all other base jails of the same base?

If it is r/w, altering it in one jail (e.g. is the "mount" of the base persistent or is the base mounted once then copied into the jail? The manual implies persistent.

Below I have tried to list what I think are true about each: I'm trying to figure out when I would use each. It seems a base jail has a mount point of the base OS whereas clone is a clone of (a snapshot of) the base jail. It all started when I was trying to clean up my snapshots and found one named for my one and only jail.

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Trying to figure out when I would use which kind of jail (base vs clone).
