HP StorageWorks 2/16V Brocade Fabric OS Command Reference Manual - Supporting - Page 578

2 powerOffListSet powerOffListSet Sets slot power-off list order. Synopsis powerofflistset Description Use this command to change the order in which slots are powered off. This command displays the current order and then prompts you to indicate the new order. Whenever a power supply goes out of service or a field-replaceable unit (FRU) is inserted, the system available power is compared to the system required power to determine if there is enough power to operate. If there is less power available than the demand, the power-off list is processed until there is enough power for the system to operate. If the system abruptly goes from a state in which there is enough power to run all inserted and powered on FRUs to a state in which there is not enough power to run everything, no processing of the power-off list can be done. This is because the lack of power causes the CP boards' processors to cease execution of the firmware. In this situation, all operation of the system terminates immediately: for instance, if two power supplies already have been removed from a Brocade director, and than a third one is removed so that suddenly only one power supply is available to power a fully loaded system. However, if the system is running on two power supplies (this is not recommended) and one goes into a predicted fail state (in which the power supply is still supplying power), the power-off list is processed as described. The power-off list only affects the order in which slots are powered off. On power up or when an additional power supply is added, slots are processed to verify that they can be powered up. This processing always starts at slot 1 and proceeds to the last slot in the chassis. Also, other FRUs in the chassis might use significant power yet the FRUs cannot be powered off by software. For example, a missing blower FRU might change the power computation enough to affect how many slot blades can be powered up. The format of the display varies, depending on the switch model and the number of slots present. The execution of this command is subject to Admin Domain restrictions that may be in place. Operands none Examples To modify the power-off list order: switch:admin> powerofflistset Slot Current POL 10 1st 9 2nd 8 3rd 7 4th 4 5th 3 6th 2 7th 1 8th 1st slot to be powered off: (1..10) [10] 1 2nd slot to be powered off: (2..10) [9] 2 3rd slot to be powered off: (3..10) [8] 3 4th slot to be powered off: (4..10) [7] 4 (continued on next page) 546 Fabric OS Command Reference Manual 53-1000436-01