1.9.1.2 Step 2: Replace the Disk Controller BBU

In this step, you remove the old disk controller BBU and replace it with the new BBU.

Exadata X3-2, X4-2, or X4-8 Compute Nodes and X3-2, X3-8, X4-2, or X4-8 Storage Cell nodes with the Remote Battery

These steps apply to Exadata nodes based on X3-2, X4-2, X4-8 and X3-2L, X4-2L servers with the remote battery installed.

1. Locate the battery slot marked with an orange and white BBU label.

   X3-2 and X4-2 Compute nodes: this is the upper right-most slot on the front of the chassis labelled BBU (previously designated "HDD7").

   X4-8 Compute nodes: this is in the lower slot, second from the left, on the rear of the chassis labeled BBU.

   X3-2L and X4-2L Storage cells: this is the right-hand slot on the rear of the chassis above PS1, labelled BBU (previously designated "REAR HDD 1").

2. Unlatch and carefully slide out the old BBU carrier.

3. Insert and carefully slide in the new BBU carrier, and latch it closed.

Exadata X3-2L or X4-2L Storage Cell nodes without the Remote Battery

Replace the existing HBA BBU with a remote-mounted battery kit (part 7060020) following the CAP detailed in Support Note 1561949.1.

Exadata X3-2 or X4-2 Database Machine Compute nodes without the Remote Battery

Replace the existing HBA BBU with a remote-mounted battery kit (part 7060020) following the CAP detailed in Support Note 1561949.1.

Exadata X3-8 Database Machine Compute nodes

These steps are relevant to Exadata nodes based on X2-8 servers (formerly x4800m2).

Note:

The Exadata X3-8 Database Machine Compute nodes are based on X2-8 servers. See Table 1-2

1. Remove CMOD0 from the server and set it on a flat, antistatic surface.

2. Remove the CMOD top cover.

3. Remove the HBA REM with BBU attached:

   1. Lift the REM ejector handle and rotate it to its fully open position.

   2. Lift the connector end of the REM and pull the REM away from the retaining clip on the front support bracket.

4. Remove the old BBU from the REM:

   1. Use a No. 1 Phillips screwdriver to remove the 3 retaining screws that secure the battery to the REM card. Do NOT attempt to remove any screws from the top side of the REM and battery pack; those screws hold the standoffs that provide the bottom screw holes and should remain with the battery pack.

   2. Detach the battery pack including circuit board from the REM by gently lifting it from its circuit board connector.

5. Install the new BBU on the REM.

   1. Attach the battery pack circuit board connector to mate with the REM's connector.

   2. Use a No. 1 Phillips screwdriver to secure the battery to the REM. If the BBU comes with a package of new screws, then use those new screws - do not re-use the screws from the old BBU attachment.

6. Re-install the HBA REM with BBU attached.

   1. Ensure that the REM ejector lever is in the closed position. The lever should be flat with the REM support bracket.

   2. Position the REM so that the battery is facing downward and the connector is aligned with the connector on the motherboard.

   3. Slip the opposite end of the REM under the retaining clips on the front support bracket and ensure that the notch on the edge of the REM is positioned around the alignment post on the bracket.

   4. Carefully lower and position the connector end of the REM until the REM contacts the connector on the motherboard, ensuring that the connectors are aligned. To seat the connector, carefully push the REM downward until it is in a level position.

7. Install the cover on the CMOD.

8. Return the CMOD back into the unit in CMOD0 slot.