Connecting P6500 EVA controllers to the disk enclosures (2C6D)
Y-cables (see
Figure 52 (page 63)
) are used to connect the P6500 and enable each controller port
to act as two ports. The Y-cables provide connectivity to each SAS domain (indicated as DP-1 and
DP-2 on the cables in the diagrams). The short end (P0 in
Figure 52 (page 63)
) is the input to a
controller port. Each long end (P1 and P2) is an output to a disk enclosure port. Each individual
connectivity point from the Y-cable is the start of a SAS domain (P1 and P2 in
Figure 52 (page
63)
).
Figure 52 P6500 Y-cable
2. Port number label
1. Pull tab (may also be a release bar)
1.
Divide the disk enclosures into two groups. The first group contains the disk enclosures below
the controller enclosure (domain DP-1); the second group contains the disk enclosures above
the controller enclosure (domain DP-2).
2.
Connect the top and bottom disk enclosures in each SAS domain. As shown in
Figure 53 (page
64)
, there are two redundant paths in each SAS domain. In SAS domain DP-1, the first
redundant path is port P1 of I/O module A on the top disk enclosure and port P2 of I/O
module A on the bottom disk enclosure. The second redundant path is P1 of I/O module B
on the top disk enclosure and P2 of I/O module B on the bottom disk enclosure. The same
redundant paths are made in SAS domain DP-2.
Connecting P6500 EVA controllers to the disk enclosures (2C6D)
63