Installation and Migration Guide

Moving an SP expansion I/O unit

Perform the following steps move an SP expansion I/O unit from one node to a different node.

Step 1: Archive the SDR

Before moving an SP expansion I/O unit from one existing node to another, you should back up the SDR by issuing:

SDRArchive

Note the location and the name of the file created after you issue this command.

Step 2: Shut down the nodes and power them off

Prior to shutting down the node that you are removing the SP expansion I/O unit from and the node that you are moving it to, make a list of all the applications and programs running on the node such as LoadLeveler and stop them from running.

Use Perspectives or the cshutdown command to shut down the nodes. For example, issue:

cshutdown -G -N 45 61

Step 3: Disconnect the SP expansion I/O unit from the old node and install it on the new node

Your IBM Customer Engineer (CE) performs this step. See RS/6000 SP: Installation and Relocation for instructions.

Step 4: Remove the SP expansion I/O unit definition from the SDR

Use the spdelexp command on the control workstation to remove the old SP expansion I/O unit definition from the SDR. For example, issue:

spdelexp -x 4,5,7

Step 5: Power on the node

Power on the nodes using the cstartup command. For example:

cstartup -G -N 45 61

Step 6: Verify the SP expansion I/O unit configuration

To verify that the SP expansion I/O unit is properly configured in the SDR, issue:

splstdata -x