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HP StorageWorks Modular Smart Array 70 Enclosure - Replacing the Backplane

Before you begin

CAUTION:
  • Before removing the failed component, ensure that a replacement part is available. Removing a component impacts the airflow and cooling ability of the device.
  • Do not remove more than one component or blank from the enclosure at a time. Doing so impacts the airflow and cooling ability of the device. To avoid possible overheating, insert the new or replacement component as quickly as possible. If the internal temperature exceeds acceptable limits, the MSA70 may overheat and automatically shut down or restart.
  • Parts can be damaged by electrostatic discharge. Use proper anti-static protection.

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Verifying component failure

Use the following methods to verify component failure:

  • Check the hard drive status LEDs as identified in the following table. Check with known good hard drives.
  • Check the host log for errors.
Hard drive LED combinations
Online/Activity LED (green)
Fault/UID LED (amber/blue)
Interpretation
On, off, or flashing
Alternating amber and blue
The drive has failed, or a predictive failure alert has been received for this drive; it also has been selected by a management application.
On, off, or flashing
Steadily blue
The drive is operating normally and it has been selected by a management application.
On
Amber, flashing regularly (1 Hz)
A predictive failure alert has been received for this drive.
Replace the drive as soon as possible.
On
Off
The drive is online, but it is not currently active.
Flashing regularly (1 Hz)
Amber, flashing regularly (1 Hz)
Do not remove the drive. Removing a drive may terminate the current operation and cause data loss.
The drive is part of an array that is undergoing capacity expansion or a stripe size migration, but a predictive failure alert has been received for this drive. To minimize the risk of data loss, do not replace the drive until the expansion or migration is complete.
Flashing regularly (1 Hz)
Off
Do not remove the drive. Removing a drive may terminate the current operation and cause data loss.
The drive is rebuilding, or it is part of an array that is undergoing capacity expansion or a stripe size migration.
Flashing irregularly
Amber, flashing regularly (1 Hz)
The drive is active, but a predictive failure alert has been received for this drive. Replace the drive as soon as possible.
Flashing irregularly
Off
The drive is active and it is operating normally.
Off
Steadily amber
A critical fault condition has been identified for this drive and the controller has placed it offline. Replace the drive as soon as possible.
Off
Amber, flashing regularly (1 Hz)
A predictive failure alert has been received for this drive. Replace the drive as soon as possible.
Off
Off
The drive is offline, a spare, or not configured as part of an array.

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Removing the backplane

To remove the backplane, follow the steps provided below:

  1. Power down the enclosure:

    1. Power down any attached servers. See the server documentation.

    2. Press the Power On/Standby button on the enclosure.

    3. Wait for the system power LED to go from green to amber.

    4. Disconnect the power cords.

  2. Extend or remove the enclosure from the rack in which it may be installed:

    1. Loosen the front panel thumbscrews that secure the enclosure faceplate to the front of the rack.

    2. Disconnect the cabling and extend or remove the enclosure from the rack.

  3. Remove the access panel:

    1. Lift the access panel latch.

    2. Slide the access panel to the rear.

      Figure 1: Removing the access panel

      1 - Lifting the access panel latch
      2 - Sliding the access panel to the rear
  4. Remove the midplane:

    1. Remove the power supplies by disconnecting the power cords from the power supplies, pressing the latch inward and removing the power supplies.

      Figure 2: Removing the power supply

      1 - Pressing the latch inwards
      2 - Pulling the power supplies out
    2. Remove the fans by pressing up the lever and sliding the fans out of the chassis.

      Figure 3: Removing the fans

      1 - Pressing the lever upwards
      2 - Sliding the fans out of the chassis
    3. Remove the I/O module by disconnecting any SAS cables connected to the I/O module, squeezing the lever, pulling the lever down and sliding the module out of the chassis.

      Figure 4: Removing the I/O module

      1 - Squeezing the lever
      2 - Pulling the lever down
      3 - Sliding the module out of the chassis
    4. Remove the I/O module blank by squeezing the lever, pulling the lever down and sliding the blank out of the chassis.

      Figure 5: Removing the I/O module blank

      1 - Squeezing the lever
      2 - Pulling the lever down
      3 - Sliding the blank out of the chassis
    5. Remove the 7-segment display board by pulling the pin out to release the board and putting your finger inside the slot to slide the board out of the chassis.

      Figure 6: Removing the 7-segment display board

      1 - Pulling the pin out to release the board
      2 - Putting your finger inside the slot to slide the board out of the chassis
    6. Remove the riser board by loosening the thumbscrew and lifting the board out of the chassis.

      Figure 7: Removing the riser board

      1 - Loosening the thumbscrew
      2 - Lifting the board out of the chassis
    7. Disconnect the cables from the midplane.

      Figure 8: Disconnecting the cables from the midplane

      1 - Disconnect all the cables
      2 - Disconnect all the cables
    8. Lift the lever to disengage the midplane from the backplane and tilt the midplane up and remove it from the chassis.

      Figure 9: Removing the midplane

      1 - Lifting the lever to disengage the midplane from the backplane
      2 - Tilting the midplane up and removing it from the chassis
  5. Remove the screws on the backplane.

  6. Tilt the backplane up from the bottom and lift it out of the chassis.

    Figure 10: Removing the backplane

    1 - Removing the screws on the backplane
    2 - Tilting the backplane up from the bottom and lifting it out of the chassis

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Installing the backplane

To install the backplane, reverse the removal procedure:

  1. Insert the backplane into the chassis, securing it with the screw.

  2. Install the midplane, riser board, 7-segment display board, I/O module and blank, fans and power supplies.

  3. Install the access panel.

  4. Insert the enclosure into the rack and power up the enclosure.

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Verifying component replacement

After replacing the backplane, check the hard drive status LEDs.

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