Oracle Virtual Compute Appliance X3-2 Hardware
 

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This describes the process required to remove and replace a rack PDU on an Oracle Virtual Compute Appliance X3-2 Hardware

In this Document

Goal

Solution

References

Oracle Confidential PARTNER - Available to partners (SUN).
Reason: FRU

Applies to:

Goal

Replace a failed Rack PDU with a new one.
This is the non-CAP version of CAP 1606718.1

Solution

DISPATCH INSTRUCTIONS
  WHAT SKILLS DOES THE ENGINEER NEED:  Exadata trained
  TIME ESTIMATE: 120 minutes
  TASK COMPLEXITY: 2

FIELD ENGINEER/ADMINISTRATOR INSTRUCTIONS:
   PROBLEM OVERVIEW:

A Rack PDU is failed and needs replaced.

  WHAT STATE SHOULD THE SYSTEM BE IN TO BE READY TO PERFORM THE RESOLUTION ACTIVITY?

The PDU can be replaced hot, without taking power down to the rack. The 2nd operating PDU will maintain power to all of the units using the redundant power supplies in each server and switch.

If replacing hot, there are 2 potential risks to the operating rack:

1. From unlatching IB cables in the rack inadvertently. A loss of service in IB may result in nodes being evicted from the cluster which may bring down the rack. Care should be made if having to handle the IB cables, but the risk should be limited as the IB cables should be latched securely and should not unlatch without significant tension being placed on them from pulling.

2. If the rack is in a raised-floor environment, then it may be necessary to move the rack forward or backward in order to align the PDU plug with the floor tile cutout and rack floor cutout. Cut-outs should have been made large enough per the documentation, however that is not always followed particularly in older data centers. Extra care should be taken to ensure there is sufficient slack for any customer added network cables and multi-racking InfiniBand cables if present. In multi-racked environments, it is highly recommended to disable subnet manager on this rack prior to moving it, to ensure other racks are not impacted inadvertently to unplanned subnet manager failovers. In over-head cabling environments, the top cable pass through panel can be removed if necessary to facilitate passing the outlet plug through it, by undoing the screws that attach it on the top of the rack.

   WHAT ACTION DOES THE FIELD ENGINEER/ADMINISTRATOR NEED TO TAKE?:

Replace the PDU, following the process instructions detailed in MOS Note 1423708.1. That note also has 2 instructional videos attached for the removal and replacement showing how to do it live.

Once replaced, check the following settings on the new PDU:

1.  Set the correct IP address obtained from the table 1 below

2.  Set the correct PDU name obtained from the table 1 below

    

3.  Create user 'root' with password "Welcome1"  (The default user/password is admin/admin)

TABLE 1

The PDU name field will be a combination of the rack serial number “Rack SN” + “PDUA. For example, if the rack serial number was 1039AK2070 then the PDU A name would be “1039AK2070-PDUA”

OBTAIN CUSTOMER ACCEPTANCE
   WHAT ACTION DOES THE FIELD ENGINEER/ADMINISTRATOR NEED TO TAKE TO RETURN THE SYSTEM TO AN OPERATIONAL STATE?:

Verify the PDU is functioning, and all nodes and switches are no longer showing failed for the power supplies. On the nodes, use the front LED's. On the IB and Cisco switches, look through the vented filler panels to ensure both sides PSU's are green.

On the PDU, verify the current monitor is displaying the current draw on each input and outlet group. Use the button to toggle the direction and input being displayed (on units with more than 1 3-phase input).

Verify the PDU can be accessed over the network to display the current monitor in a web browser. This can be done via laptop connected to port 19.  If the PDU has been reconfigured for the customer's network, verify with the customer they can connect to the PDU as expected.

PARTS NOTE:

7051805 15KVA Single-Phase PDU, North America
7051902 22KVA Single-Phase PDU, North America
7051905 22KVA Single-Phase PDU, North America
7051908 15KVA Three-Phase PDU, North America
7051914 15KVA Three-Phase PDU, International
7051917 24KVA Three-Phase PDU, International
7052216 24KVA Three-Phase PDU, North America


REFERENCE INFORMATION:

Document:1423708.1 - Replacement procedure for a Power Distribution Unit on an Engineered System using Sun Rack II

Document:1543240.1 - How to update firmware on a PDU in an Engineered System using Sun Rack II

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