IBM 2078-4F4 Quick Installation Manual page 67

Procedure
Removing a SAS cable
1. Locate the connector at the end of the SAS cable that is to be removed from the expansion enclosure.
2. Grasp the connector by its blue tag. Pull the tag.
3. Release the connector and slide it out of the SAS port.
4. Repeat steps "2" on page 43 and "3" on page 43 on the other end of the SAS cable.
Replacing a SAS cable
5. Ensure that the SAS connector is oriented correctly, as shown in Figure 50 on page 43. The blue tab
must face towards the top of the enclosure canister.
1 Blue pull tab
2 SAS cable
3 SAS port
Figure 50. Correct orientation for SAS cable connectors
6. Insert the SAS cable into the SAS port until you hear or feel a click. When the cable is successfully
inserted, you cannot disconnect the cable without pulling on the blue tag.
Connecting to a system node
7. Connect the SAS cable to the SAS port with blue tab above the connector (that is, facing towards the
top of the node).
You hear or feel a click when the cable is successfully inserted. You cannot disconnect the cable
without pulling on the blue tag.
8. Route the SAS cables through the cable management arms, as shown in Figure 51 on page 43.
Figure 51. Example of SAS cables routed through the cable management arms
9. When both ends of a SAS cable are correctly connected, the green link-LED next to the connected SAS
ports are lit.
For example, Figure 52 on page 44 shows the LEDs of expansion canister 1 on a 5U expansion
enclosure. The SAS cable is successfully inserted in to port 1 (input); port 2 (output) does not contain a
SAS cable.
Chapter 2. Installing the system hardware 43