Changing the SCSI-initiator ID Overview

Any changes made to the SCSI-initiator ID should be made before connecting the host to the affected SCSI chain.

The procedure for changing the SCSI-initiator ID requires modifying some OBP variables and setting up a script that will run as part of the OBP initialization. This can be performed using shell commands or by working directly at the OBP level (the ok prompt). Changes made to an OBP environment variable are non-volatile—all changes are retained even when the system is rebooted or the OS is reinstalled.

The procedure should only be performed on one node of a two-node cluster—a similar procedure could be followed for clusters with more than two nodes; however, the SCSI chains have to be mapped, and ...

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