Removing a secondary expander module
You can remove a secondary expander module from a 5U expansion enclosure if it is faulty or to perform other service tasks.
Before you begin


About this task
The secondary expander modules provide SAS connectivity between the expansion canisters and the drives. Each drive has 2 SAS ports. SAS port 1 of each drive is connected to secondary expander module 1. SAS port 2 of each drive is connected to secondary expander module 2. Each expansion canister is connected to both secondary expander module 1 and secondary expander module 2. If secondary expander module 2 is missing or is faulty, the expansion canisters can communicate only with SAS port 1 on each drive. Similarly, if secondary expander module 1 is missing or is faulty, the expansion canisters can communicate only with SAS port 2 on each drive.


LED | Color | Status | Description |
---|---|---|---|
Power 1 | Green | On | The secondary expander module is receiving power. |
Off | The secondary expander module is not receiving power. | ||
Fault 2 | Amber | On | Not used. |
Blink | The secondary expander module is being identified. | ||
Off | Normal operation. |
Procedure
Replace the secondary expansion module