EBOD I/O Module Replacement

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This page explains how a user can replace a faulty EBOD controller module (also referred to as the I/O Module or canister). This procedure is applicable only for a 7520 system containing an EBOD Enclosure. The detailed steps are discussed in the following sections:


Note.png Note: The EBOD controller module is hot-swappable and therefore removal/replacement may be performed by the user. The failed module should not be removed until you have a replacement at hand.

Note.png Note: Blank EBOD modules MUST be fitted in all unused slots. The enclosure will not cool properly if a slot is left open.


Removing an EBOD I/O module

Note.png Note: During the replacement procedure, the EBOD I/O module should be monitored by navigating to Manage Hardware page in the Web UI. The EBOD module shows up under EBOD Enclosure as 'Controller'. A green status indicates that the EBOD I/O module is healthy, a yellow status indicates that it is recovering or degraded and a red status indicates a failed EBOD I/O module.

  • Prior to the replacement of the failed module, ensure that the other EBOD controller module is 'active' and running.
    • Access the Web UI.
    • Navigate to Manage Hardware and verify that the status of the active EBOD is green and the failed EBOD is red.
  • Locate the failed EBOD controller module on the appliance backplane.
  • Remove the connecting cables (EBOD to controller) prior to taking the EBOD module out from the system.
    • Make a note of the exact SAS port of the EBOD that was connected to the controller.
    • Typically it should be SAS port A labeled as 'Host In' in the diagram shown below.
    • You will be required to restore the system to this configuration after the replacement of EBOD module.




  • Grasp the module latch between the thumb and forefinger and squeeze them together to release the EBOD latch.


Figure - EBOD Module Latch Operation



  • Pull the latch outward to cam the module out of the enclosure.
  • Grip the latch handles and withdraw the module.


Figure - Removal of EBOD Module




Installing an EBOD I/O module

  • Check for damage, especially to the interface connector - do not install if the pins are bent.
  • With the latches in the open position, slide the module into the enclosure until the latches engage automatically.


Figure - Installing an EBOD Module



  • Cam the module home by manually closing the latches. 


Figure - EBOD Module Latch Operation


  • A click should be heard as the latches engage.
  • Reconnect the cables taking care to restore the exact configuration present prior to the replacement. For details on how to connect the cables, see the diagram below for guidance.





Note.png Note: The EBOD module may take up to 1 minute to re-initialize after re-cabling.


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