APC switched PDU rack, lost state after reboot or power loss

electrical-powerpower-distribution-unit

I have the following:

  • We have a few APC 7920 PDU's
  • Using POWER IQ to control the PDS's via SNMP 1/2
  • Using also Mobile Power IQ to control the PDU if need via iPad/iPhone

I am in the process of testing a few scenarios. One which has be stumped me a little.

  1. Outlet 1 is on, Outlet 2,3,4,5,6,7,8 is off
  2. Power IQ recognizes this
  3. Turn off the power to the PDU
  4. Wait 2 minutes
  5. Turn on the power to the PDU
  6. All the outlets are in a state of ON

My question(s),

  1. Is it possible to preserver the state of the PDU's outlets after coming back online
  2. Is it possible to execute a pre-configured state after coming back online

Thanks

Best Answer

I only had my hands on the larger 7950 models, but I think the logic should apply to all APC switched PDUs.

You can configure each outlet to either power on immediately when power is restored, power up with a delay of up to 7200 seconds or not power up at all:

outlet configuration screenshot

This is how you get a "preconfigured state" working. I never found anything to have reload the "previous state" - i believe the current state never is stored on any kind of persistent storage.

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