Dell Brocade 6520 Command Reference Supporting Fabric OS v7.1.0 - Page 907

powerOffListShow 2 powerOffListShow Displays the order in which slots are powered off. SYNOPSIS powerofflistshow DESCRIPTION NOTES OPERANDS EXAMPLES Use this command to display the order in which the physical slots are powered off. Whenever a power supply goes out of service or a field-replaceable unit (FRU) is inserted, the system's available power is compared to the system's required power to determine if there is enough power to operate. If less than the required power is available, the power-off list is processed, until there is sufficient power for the system to operate. The following rules apply when the power-off list is processed: • If a power supply starts predicting failure, so that there will not be enough power for all blades, the powered-up port blades are powered down in the order in which they appear on the power-off list. • If you replace a failed power supply, or you remedy an existing power-supply shortage by inserting a new power supply, the previously powered-down blades are powered up in the reverse order of the power-on list. Note that this is different from the order in which the blades in the system usually come up. The original powering up of blades does not consult the power-off-list; it simply proceeds from the lower-numbered slots to the higher-numbered slots. • If you add a new blade to the chassis, and there is not enough power available to operate the additional hardware (because you may only have one power supply) the newly inserted blade will be denied power and the existing powered-on blades stay powered on. • If the system's power supply drops abruptly to insufficient levels, the power-off list cannot be processed. The sudden lack of power causes the CP board processors to cease executing the firmware. For example, if only two power supplies are available to power a fully loaded chassis that requires at least two power supplies, and one power supply is removed from the chassis, all system operations terminate immediately, and the power-off list cannot be processed. However, if the system is running on two power supplies (this is not recommended in this case) 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. Command output may vary depending on the hardware platform. Control processor (CP) blades are not included in the power-off list. The execution of this command is subject to Virtual Fabric or Admin Domain restrictions that may be in place. Refer to Chapter 1, "Using Fabric OS Commands" and Appendix A, "Command Availability" for details. None To display the slot power off list order: switch:admin> powerofflistshow Slot 10 will be powered off 1st Slot 9 will be powered off 2nd Slot 8 will be powered off 3rd Slot 7 will be powered off 4th Slot 6 will be powered off 5th Fabric OS Command Reference 879 53-1002746-01