Replacing the expansion shelf

Use these instructions to install a replacement expansion shelf on the storage expansion node assembly.

Attention:Before you connect a compute node to the storage expansion node, you must make sure that the integrated management module II (IMM2) primary and backup firmware in the compute node is at level ibm_fw_imm2_1aoo34x-1.xx_anyos_noarch or later. If the IMM2 firmware in the compute node is at an earlier level when you connect the compute node to the storage expansion node, the firmware in the storage expansion node will become corrupted and unrecoverable, and you will have to replace the storage expansion node. For information about updating the firmware in the compute node, see the compute node Installation and Service Guide.

To install the expansion shelf, complete the following steps:

1. Place the expansion shelf on a flat, static-protective surface with the black edge facing you.
2. With the left edge of the storage expansion node aligned with the expansion node alignment mark on the expansion shelf, orient the slots on the bottom of the storage expansion node with the posts on the right side of the expansion shelf. Then, slide the storage expansion node toward the center of the shelf until the retention latch clicks into place, as shown in the following illustration.
   
   
   
3. Remove the compute node cover (see the compute node Installation and Service Guide for instructions).
   Attention

   Bend the interposer cable up and over the storage expansion node to ensure that the cable and connector are clear of the area where the compute node will be attached.
4. With the right edge of the compute node aligned with the compute node alignment mark on the expansion shelf, orient the slots on the bottom of the compute node with the posts on the left side of the expansion shelf. Then, slide the compute node toward the center of the shelf until the retention latch clicks into place, as shown in the following illustration.
   
   
   
5. If any I/O expansion adapters in the compute node are blocking access to the interposer connector, remove them (see the compute node Installation and Service Guide for instructions).
6. Connect the interposer cable to the interposer connector on the compute node system board, as shown in the following illustration.
   
   
   
7. If you removed any I/O expansion adapters from the compute node, install them (see the compute node Installation and Service Guide for instructions).
8. Install the compute node cover (see the compute node Installation and Service Guide for instructions).