8 Replies Latest reply: Nov 1, 2013 10:53 AM by radek.kubka RSS

Passive Backplane in 2240-4

CGONZALES78
Currently Being Moderated

In the 2240-4. It has four power supplies. How many can you loose and can you loose both from the top or bottom. I'm wondering how the power system works internal with the passive backplane. If we loose both of the top ones will it bring down the primary controller in a dual controller system?

  • Re: Passive Backplane in 2240-4
    Currently Being Moderated

    Allan Watanabe is this something your team handles or should this questions go to the NetApp Support Community Filer area?

    • Re: Passive Backplane in 2240-4
      sudheerns76
      Currently Being Moderated

      I am out of the office until 25/03/2012.

       

      I am not available from 23rd to 25th March due to Public Holiday in

      Bangalore and I will be out of station . Please reach out to Steve

      Lee/India/IBM, for any Solution queries in my absence. For any management

      queries please reach out to Sundar Subramanian1/India/IBM.

       

      For emergency I can be reachable on Mobile Numbers -  9900111441 /

      9886395241.

       

      I Apologies for any Inconvenience and Thanks in Advance for your

      co-operation.

       

       

      Note: This is an automated response to your message  "[Products &

      Solutions] - Re: Passive Backplane in 2240-4" sent on 23/3/12 22:07:10.

       

      This is the only notification you will receive while this person is away.

  • Re: Passive Backplane in 2240-4
    radek.kubka
    Currently Being Moderated

    Hi,

     

    Funnily enough, I just stumbled across a slide discussing this

     

    FAS2240-4 & Data ONTAP 8.1

    - Requires 3 working PSUs to power up, reboot, or remain running

    - Loss of a second PSU results in shutdown

    - PDU failure also causes shutdown if FAS2240-4 connected across only two PDUs

     

    Allegedly ONTAP 8.1.1 is expected to bring improvement, i.e. FAS2240-4 will continue to run with 2 PSUs only (but will not power up, or boot, unless 3 PSUs are working).

     

    Regards,
    Radek

    • Re: Passive Backplane in 2240-4
      CGONZALES78
      Currently Being Moderated

      So can I loose the top two and still have both controllers running?

      • Re: Passive Backplane in 2240-4
        radek.kubka
        Currently Being Moderated

        Apparently yes (as long as we are talking about 8.1.1, not 8.1).

        • Re: Passive Backplane in 2240-4
          JAMES.LYNES
          Currently Being Moderated

          Hi

           

          I see this is an old post, and i am hoping this may now have an answer.

           

          We have 2 x FAS2240-4's in a HA pair using 8.1 7-Mode. Each rack has 2 power feeds, 2 PSU's from each device are plugged into one of the feeds.

          We had an issue where we lost one PDU, both FAS2240's panicked and after 2mins, the devices shutdown.

          We have looked through the release notes for all 8.x releases, and i cannot seem to find anything to suggest that this has been fixed.

           

          Will upgrading the OnTap allow us to overcome this issue?

           

          Thanks,

          • Re: Passive Backplane in 2240-4
            radek.kubka
            Currently Being Moderated

            Hi James,

             

            When you said controllers "panicked", you didn't mean the actual ONTAP panic, did you?

             

            Are you on 8.1 RC or GA release?

             

            This is what FAS2240 Technical FAQ (on Field Portal) says about this:

            What happens if a second power supply fails on the FAS2240-4?

            Answer: In Data ONTAP 8.1 RCx releases, the FAS2240-4 will shut down if a second power supply fails. Similarly, if the four PSUs on FAS2240-4 are connected across two PDUs in a cabinet and a PDU fails, the FAS2240-4 will shut down.

            In Data ONTAP 8.1 GA release, the FAS2240-4 will continue to run with two working PSUs but requires three working PSUs to power up or reboot.

            In Data ONTAP 8.1.1 RC1, the FAS2240-4 will continue to operate and also power up or reboot with two working PSUs.

             

            Regards,

            Radek

    • Re: Passive Backplane in 2240-4
      sudheerns76
      Currently Being Moderated

      I am out of the office until 25/03/2012.

       

      I am not available from 23rd to 25th March due to Public Holiday in

      Bangalore and I will be out of station . Please reach out to Steve

      Lee/India/IBM, for any Solution queries in my absence. For any management

      queries please reach out to Sundar Subramanian1/India/IBM.

       

      For emergency I can be reachable on Mobile Numbers -  9900111441 /

      9886395241.

       

      I Apologies for any Inconvenience and Thanks in Advance for your

      co-operation.

       

       

      Note: This is an automated response to your message  "[Products &

      Solutions] - Re: Passive Backplane in 2240-4" sent on 23/3/12 23:09:12.

       

      This is the only notification you will receive while this person is away.

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