Installing or replacing an expansion canister: 2145-92F

You can reinstall an expansion canister in a 2145-92F expansion enclosure or replace a faulty expansion canister with one from FRU stock.

Before you begin

Important: You can replace an expansion canister without powering off the expansion enclosure. However, to maintain operating temperature, replace the expansion canister within 10 minutes of its removal. When an expansion canister is removed, the reduction in airflow through the enclosure might cause the enclosure or its components to shut down to protect from overheating.

About this task

An expansion canister provides SAS connectivity between the 2145-92F expansion enclosure and SAN Volume Controller system. The expansion enclosure contains two expansion canisters. Figure 1 shows an example of an expansion canister. If either of the two expansion canisters has a failure, the other expansion canister assumes the full I/O load.

Figure 1. Expansion canister

1 Canister fault indicator
2 Canister status
3 Canister power indicator
4 and 6 SAS link fault indicators
5 and 7 SAS link operational indicators
8 Canister release handles

Procedure

Disconnect the elbow of the lower cable management arm to swing it out of the way, as shown in Figure 2.
Follow the procedure that is described in Moving the cable management arms.
Carefully align the expansion canister with the expansion enclosure.
Rotate both the handles outward and insert the expansion canister into the expansion enclosure.
When the expansion canister is fully inserted, rotate each handle inward to lock it into position, as shown in Figure 2.
Figure 2. Install the expansion canister
Reconnect all the SAS cables to the appropriate SAS ports on the expansion canister, as described in Removing and installing a SAS cable: 2145-92F.
Reconnect the elbow of the lower cable management arm to the inner member of the slide rail.