In order to understand this Post fully, I would advise you read “EMC VMAX – 20/40K Back-End Connectivity” first.
‘Ident/Symb’ = ‘9B’ identifies the Director and the MOD that the drive is connected to at the Back-End. Thus we can gather at this stage that the drive is connected to Director 9 (Engine5).
On both directors of Engine5(9&10) there are two Back-End IO modules (MOD0 & MOD1) per director, MOD0 has connections A0,A1,B0,B1 and MOD1 has connections C0,C1,D0,D1. MOD0 on both the even and odd directors connect to DAE’s 9,13,10,14 with MOD1 on both directors connecting to DAE’s 11,15,12,16. The 8 Redundant Loops on Engine5 connect up as follows:
‘TID’ = ‘1’ refers to the target ID, or the disk location on the Loop.