How do define array luns, are they just raid groups, or disk groups.
Also the term storage arrays.
I think you took it from V-series documentation (gateway product), where it refers to 3-party arrays virtualised by NetApp controllers.
Also in synchmirror it talks about 2 plexes, one local and one remote. Is the local one, the current one which is the existing data, and the remote one is the mirror copy.
Well, I think this is coming from MetroCluster setup - local plex is the active copy (read/write) & the remote is the passive one (read-only).