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Aruba 5400R-ZL2 how to check available power before changing a Power supply

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  • 1.  Aruba 5400R-ZL2 how to check available power before changing a Power supply

    Posted Jan 28, 2022 09:00 AM

    using Aruba 5412R-ZL2 with 2  2750 Watt  model J9830B supplies.  Mix of POE ports throughout the modules

    Changed a defective power supply 2  and received these messages.  From Log

     13:20:25 00933 chassis: AM1: Chassis running at reduced backplane capacity
     13:20:25 00549 chassis: AM1: Insufficient power supplies to power Slot K

    sh system power-supply

    Power Supply Status:

    PS# Model Serial State AC/DC + V Wattage
    ---- --------- ------------ ----------------- -------------- ---------
    1 J9830B IN75K380HM Powered AC 120V/240V 2750
    2 J9830B IN16K381HN Powered AC 120V/240V 2750
    3 Not Present -- --------- 0
    4 Not Present -- --------- 0

     

    sh power-over-ethernet

    Status and Counters - System Power Status

    System Power Status : No redundancy
    PoE Power Status : No redundancy
    Operational Power Status : No redundancy


    Chassis power-over-ethernet:

    Total Available Power : 4483 W
    Total Failover Pwr Avl : 2056 W
    Total Redundancy Power : 0 W
    Total Power Drawn : 199 W +/- 6W
    Total Power Reserved : 214 W
    Total Remaining Power : 4269 W

    Internal Power

    Total Power Aux Power
    PS (Watts) (Watts) Status
    ----- ------------- -------------- ---------------------
    1 2342 1400 POE+ Connected
    2 2141 1295 POE+ Connected
    3 0 Not Supported Not Connected
    4 0 Not Supported Not Connected

    sh system power-consumption

    Slot Power Usage:
    Slot Module Description Current Power
    ----- ----------------------------------------- ---------------
    A HP J9990A 20p PoE+ / 4p SFP+ v3 zl2 Mod 32 W
    B HP J9990A 20p PoE+ / 4p SFP+ v3 zl2 Mod 33 W
    C HP J9986A 24p 10/100/1000BASE-T PoE+ v3 23 W
    D HP J9986A 24p 10/100/1000BASE-T PoE+ v3 23 W
    E HP J9986A 24p 10/100/1000BASE-T PoE+ v3 27 W
    F HP J9986A 24p 10/100/1000BASE-T PoE+ v3 25 W
    G HP J9986A 24p 10/100/1000BASE-T PoE+ v3 24 W
    H HP J9986A 24p 10/100/1000BASE-T PoE+ v3 23 W
    I HP J9986A 24p 10/100/1000BASE-T PoE+ v3 24 W
    J HP J9986A 24p 10/100/1000BASE-T PoE+ v3 23 W
    K HP J9986A 24p 10/100/1000BASE-T PoE+ v3 19 W

    What should I verify before changing a PS?  to avoid creating an issue by having modules reboot.

     

    tried looking at this doc but it seems to lack the troubleshooting aspect of how to check the power draw first before changing a PS.

    Document - Power over Ethernet (PoE/PoE+) Planning and Implementation Guide | HPE Support

     

    Thanks



    ------------------------------
    Joseph Rusek
    ------------------------------


  • 2.  RE: Aruba 5400R-ZL2 how to check available power before changing a Power supply

    Posted Feb 01, 2022 08:33 AM
    Sh system power-supply detail

    It will give you the info on Power Consumption,  If the total Consumption less than 2750 Watts, you can replace the PSU. If its more, then it means second PSU is also providing power to modules or AP,

    ------------------------------
    Joseph Rusek
    ------------------------------