IBM 5U92, Manual

Page: 68 / 142

Removing and installing a SAS cable
Use the following procedures to attach SAS cables to the 5U92 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.
About this task
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 disk enclosure is incorrect. See the Installing container of the IBM Knowledge
Center for information about the correct SAS cabling for disk enclosures.
When the 5U92 disk enclosure is installed in the rack, the expansion canisters are upside down. The input
cables connect to both the left port (port 1), and the left port (port 2) on the expansion canister from the
right side of the enclosure when viewed from the rear as shown below.
Note: The two ports on the left hand canister are not used.
Figure 36. Left view of SAS port orientation on disk enclosures
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 40 and “3” on page 40 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 37 on page 40. The blue tab
must face towards the top of the enclosure canister.
1 Blue pull tab
2 SAS cable
3 SAS port
Figure 37. Correct orientation for SAS cable connectors
40 IBM Cloud Object Storage System
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Version 3.15.6: J15 Appliance Manual