Currently Being ModeratedNov 7, 2012 3:06 AM (in response to drifteryank)
Your last statement is what I would do. One logical vault per physical drive.
Clean out that new drive. Add a new vault in Aperture, point it to the new drive. Get a fresh new vault.
It will recognise the physical drive next time you connect one of them and you simply "Update Vaults" and it knows which one to update. The missing drive will be greyed out.
If you connect both drives, one per USB port, it has the intelligence to update both at the same time should you wish to do that. I alternate between vaults.
Currently Being ModeratedNov 7, 2012 7:40 AM (in response to drifteryank)
In addition to Peter's advice - Update Vault Path works well, when you move or rename you vault on the same drive, or you restored it from somewhere. For example, after renaming the vault on the same drive I see this, when I ctrl-click the warning triangle:
If "Update Vault Path" is greyed out, but "Update Vault" is available, then there is no need to update the path - Aperture has found the vault on its own.
Currently Being ModeratedNov 7, 2012 8:49 AM (in response to peter_watt)
I did as you suggested. Now I have two vaults that show one on my original backup drive and one on the new additional drive. However, Update Vault Path is still grayed out. I imagine this is as leonieDF says, there is no need to update a path since both are known from creating one on each drive thru Aperture in the first place.
If I eject a drive, the Update Path action then becomes available.