Dell VNX5600 VNX Command Line Interface Reference for Block 5.33 - Page 25

VNX CLI for Block alpa -set Updates the SCSI ID associated with an SP port. PREREQUISITES For naviseccli, you must have a user account on the system on which you want to execute the command. DESCRIPTION The naviseccli alpa command with the -set switch updates the SCSI ID value for the given port on an SP. CAUTION The SP port ID SCSI IDs are initially set by EMC service personnel to work at your site. Do not change any value unless you are installing a new SP and need to change its SCSI IDs from the SP ship values of 0 and 1. If you change any value, after you confirm, the SP will restart and use the new values. The software will not let you select a SCSI ID out of range (0-126) or a duplicate ID on a system. If you omit the -o (override) switch, then the CLI prompts for confirmation: Changing the ALPA value of port port-id from old-SCSI-ID to new-SCSI-ID (y/n) To confirm, answer y; to take no action, answer n. SYNTAX alpa -set -sp a|b -portid portid SCSI-ID [-o] OPTIONS -sp a | b Specifies the SP: A or B. -portid portid SCSI-ID Specifies the new SCSI ID to associate with the port. Valid port SCSI IDs range from 0 through 126. -o Executes the command without prompting for confirmation. EXAMPLE For SP A, this command changes the SCSI ID associated with port 1 to 1. naviseccli -h ss1_SPA alpa -set -sp a -portid 1 1 Changing the ALPA value of port 1, SP A to 1 WARNING: This operation will reboot the target SP. Verify that the SPS on the surviving SP is operating correctly. Otherwise write cache must be disabled: naviseccli -h IPAddress cache -sp -modify -wc off. Failure to disable write cache may result in the loss of data. DO YOU WISH TO CONTINUE? (y/n) EMC® VNX® Series Command Line Interface Reference for Block 25