Sun Oracle Sun Storage 2500-M2 Arrays Hardware Installation Manual page 38

2. If there is a black, plastic plug in the SAS expansion port on the controller,
remove it.
3. Insert one end of the cable into the SAS expansion port on the controller into
slot A of the controller tray.
4. Insert the other end of the cable into the port with an up arrow on the IOM into
slot A of the expansion tray.
5. Are you adding more expansion trays?
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Note – Each IOM in an expansion tray has three SAS expansion ports: two on the
left-center of the IOM and one on the upper-right side. When connecting from an
IOM in one expansion tray to an IOM in another expansion tray, connect the port on
the upper-right to one of the ports on the left-center. The following figure shows
these arrows on an IOM. If the cable is connected either between the two left-center
IOM ports or between two upper-right IOM ports, communication between the two
expansion trays is lost.
Note – It does not matter which of the two left-center IOM ports you use to connect
to the SAS expansion port on the far-right side.
FIGURE 3-8
6. In the IOM of the first expansion tray, insert one end of the cable into the port
on the far-right side.
7. In the IOM of the next expansion tray, insert the other end of the cable into one
of the ports in the left-center of the IOM.
28 Hardware Installation Guide • June 2011
Yes – Go to Step 6.
No – Go to Step 9.
Connecting a Cable from One IOM to a Second IOM