Connection failure

Check for the following general requirements:

• Make sure that the compute node has two installed microprocessors, if that configuration is required for the compute node to work with the storage expansion node. To determine whether a supported compute node requires two microprocessors, see Supported compute nodes.
• Make sure that the integrated management module II (IMM2) primary and backup firmware is at level ibm_fw_imm2_1aoo34x-1.xx_anyos_noarch or later.
  Attention: 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.
• If an optional flash/RAID adapter has been installed and operating in the storage expansion node, make sure that the adapter is currently installed. If a previously installed flash/RAID adapter has been removed, reinstall or replace the adapter. If you choose to operate the storage expansion node without a flash/RAID adapter, contact IBM Hardware Support to reset the LSI SAS MegaRAID firmware to its defaults, or replace the storage expansion node.

If those requirements are met and the compute node still fails to recognize or connect to the storage expansion node, complete the following steps:

1. On the compute node, start the Setup utility (see the compute node Installation and Service Guide for instructions).
2. Select System Settings > Storage.
   • If LSI MegaRAID <ServeRAID M5110e> Configuration Utility - xx.xx.xx is displayed, the compute node detects the presence of the storage expansion node. Continue to step #connection_failure/opendm.
   • If LSI MegaRAID <ServeRAID M5110e> Configuration Utility - xx.xx.xx is not displayed, check the connection of the interposer cable to the connector on the compute node system board. Then, check the Setup utility again to determine whether the compute node now detects the presence of the storage expansion node.
3. If you are using a Windows operating system, open Device Manager.
4. Make sure that ... Flex System Storage Expansion Node is displayed under Storage controllers. If it is not, install the RAID controller device driver. For instructions, see Configuring the RAID controller.
5. If the problem remains, contact Product Support.