6. If needed, repeat step 2 on page 111 through step 5 on page 112 to remove the
other secondary expander module.
Replace the secondary expansion module
7. To reinstall the secondary expansion module, or replace it with one from FRU
stock, follow the procedure in “Installing or replacing a secondary expander
module: 2077-92F” on page 77.
Removing an expansion canister: 2077-92F
You can remove the expansion canisters in a 2077-92F expansion enclosure.
Before you begin
Important: You can remove an expansion canister without powering off the
expansion enclosure. However, to maintain operating temperature, perform the
following tasks.
v Do not remove a faulty expansion canister until its replacement is ready to be
installed.
v Do not remove an expansion canister from an operational enclosure for more
than approximately 10 minutes. 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 2077-92F expansion
enclosure and Storwize V5000 Gen2 system. If either of the two expansion canisters
has a failure, the other expansion canister assumes the full I/O load. Figure 96 on
page 114 shows the features of an expansion enclosure.
Figure 95. Secondary expander module removed from the enclosure
Chapter 2. Installing the system hardware 113
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