Device adapter pair IDs – Models 984, 84E

Device adapter pair IDs identify either the two device adapter cards in an I/O enclosure, or a pair of storage enclosure RAID controllers.

For FC-AL storage enclosures
A device adapter pair ID identifies the two device adapter cards in the I/O enclosures. The device adapter cards provide redundancy for the FC-AL loops that connect to one or more storage enclosure pairs.
For high-performance flash enclosures
A device adapter pair ID identifies the pair of storage enclosure RAID controllers and their associated interfaces to the I/O enclosures.
Note: For all-flash systems, see Figure 2.
Figure 1. Device adapter pair IDs for storage enclosures (Models 984, 84E) (rear view, racks 1, 2, 3)
Device adapter pair IDs for storage enclosures (Models 984, 84E) (rear view, racks 1, 2, 3)
Figure 2. Device adapter pair IDs for storage enclosures (Model 984 all-flash) (rear view, rack 1)
Device adapter pair IDs for storage enclosures (Model 984 all-flash) (rear view, rack 1)