Moving Vault Store partitions from DAS to SAN

Hiya, I'm going to move my vault store partitons from a DAS to a SAN, and have been reviewing the technical documentation on how to achieve this. Can I get clarification on a few points to make sure I'm on the right path?

If I return results in the the Watchfile table greater than 0, I need to ensure these items are backed up, and that rerunning this query = 0 before I continue?

also, as I'm moving from a Drive letter convention to UNC paths, is [the SQL] as easy as updating the PartitionRootPath from a drive letter naming convention to UNC path convention?

So, instead of

C:\Enterprise Vault\path name

to \\name\name\name

If that makes sense?