Removing And Installing A Sas Cable - IBM Elastic Storage System 5000 Series Hardware Manual

8. Route the cables and power cords on the CMA. If needed, secure them with cable ties or hook-and-
loop fasteners.
Notes:
• Use the cable straps that are provided on the rear of the system to retain the cables and prevent
them from sagging.
• Allow slack in all of the cables to avoid tension in the cables as the CMA moves.
9. Reconnect the power cords and other cables, as needed.

Removing and installing a SAS cable

Use the following procedures to attach SAS cables to the Model 092 expansion enclosure during the
initial installation process. You can also remove a faulty SAS cable and replace it with a new one received
from FRU stock.
Be careful when you are replacing the hardware components that are located in the back of the system.
Do not inadvertently disturb or remove any cables that you are not instructed to remove.
If you replace more than one cable, record which two ports, canisters, and enclosures each cable
connects, so you can match the connections with the replacement cables. The system cannot operate if
the SAS cabling to the expansion enclosure is incorrect.
When the Model 092 expansion enclosure is installed in the rack, the expansion canisters are upside
down. The input cable connects to the right port on the expansion canister. The output cable connects to
the left port on the canister.
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 60 and "3" on page 60 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 47 on page 60. The blue tab
must face towards the top of the enclosure canister.
1 Blue pull tab
2 SAS cable
3 SAS port
Figure 47. 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 an I/O server node
60 IBM Elastic Storage System 5000: Model 092 Hardware Guide