Installation and User's Guide

Working with cards and boards


Before you begin

  • Read the safety and handling guidelines provided in "Safety and environmental notices".
  • Ensure that your current system configuration is working properly.
  • Back up all important data before you make changes to storage devices, such as hard disk drives.

The expansion-unit bridge card, switch card, and ESM boards are customer replaceable units (CRUs). This section contains step-by-step instructions for removing and replacing each device.

Replacing a bridge card

To replace the bridge card CRU in the storage unit, follow the instructions for removing the bridge card and installing a bridge card.

Removing a bridge card

Attention: Before removing the storage unit bridge card, you must switch off the storage unit. Refer to "Switching the storage unit on and off", for detailed instructions.

Complete the following steps to remove the storage unit bridge card:

  1. Switch off the storage unit. Refer to "Switching the storage unit on and off".
  2. Remove the drive CRUs or filler panels from the left and right of the bridge card bay. Refer to "Replacing hot-swap drives".
  3. Squeeze the bridge-card cover (1) clips, and pull the bridge card cover (1) off.
  4. Lift the tray handle (2), and pull the tray (3) that contains the bridge card out of the bridge card bay.

This figure shows how to pull a bridge card tray out of the storage unit. The bridge card is located in the back of the appliance.

Installing a bridge card

Attention: Make sure the storage unit is switched off before installing a bridge card. Refer to "Switching the storage unit on and off".

Complete the following steps to install the storage unit bridge card:

  1. Make sure the storage unit is switched off.
  2. Hold the bridge card tray (3) so the tray handle (2) is at the top of the bridge card tray and pointing outward.
  3. Slide the tray (3) that contains the bridge card into the bridge card bay.
  4. Push the tray handle (2) down, locking the bridge-card tray into place.
  5. Replace the bridge card cover (1) by squeezing each of the four tabs, locking the cover into place.
  6. Switch on the storage unit. Refer to "Switching the storage unit on and off".

Replacing the switch card

To replace the switch card CRU in the storage unit, follow the instructions for removing the switch card and installing the switch card.

Removing the switch card

Attention: Before removing the switch card, be sure to switch off the storage unit. Refer to "Switching the storage unit on and off". Make note of the switch card settings so you can set the new card to the same settings. Failure to do so will result in loss of data.

There is one switch card located between the two power supply/fan units at the back of the unit. Complete the following steps to remove the switch card:

  1. Switch off the storage unit.
  2. Locate the blue push pin (1) at the bottom of the switch card tray.
  3. Pull out the blue push pin (1).
  4. Pull up on the switch-card tray handle (2).
  5. Slide the tray that contains the switch card out of the switch card bay.

This figure shows how to remove a switch card. The blue push pin is located on the end of the switch-card tray handle.

Installing a switch card

Attention: Before installing a new switch card, make sure that the switch card settings are the same as the settings on the switch card being replaced, and that the storage unit is switched off. Refer to "Switching the storage unit on and off". Failure to do so will result in loss of data.

There is one switch card located between the two power supply/fan assemblies at the back of the unit. Complete the following steps to install the switch card:

  1. Make sure the storage unit is switched off.
  2. Hold the switch card so the blue push pin (1) is at the bottom of the card and the tray handle (2) is to the left of the card.
  3. Hold the tray handle (2) up and slide the card (3)into the bay until it stops.
  4. Push the tray handle (2)all the way down; then, push in the push pin (1).

Replacing an ESM board

To replace an ESM board CRU in the storage unit, follow the instructions for removing an ESM board and installing an ESM board.

Removing an ESM board

There are two hot-swap ESM boards at the back of the unit. You can remove the ESM board and SCSI cable without switching off power to the storage unit. Complete the following steps to

remove an storage unit ESM board:

  1. Power down the server attached to the ESM Board.
  2. Disconnect the SCSI cable (1)from the ESM Board.
  3. Locate the orange push pin (4) to the left of each ESM board.
  4. Pull the orange push pin (4) out.
  5. Holding the pin, pull the tray handle (3) out and to the right.
  6. Slide the ESM board(2)out of the storage unit.

This figure shows how to remove the ESM board. The orange push pin is located on the end of the switch-card tray handle.

Installing an ESM board

There are two hot-swap ESM boards at the back of the unit. You can install the ESM board and SCSI cable without switching off power to the storage unit. Complete the following steps to install a storage unit ESM board:

  1. Hold the board so the tray handle (3) is attached to the bottom of the tray, and the tray handle (3) is fully extended.
  2. Slide the ESM board (2) into the bay, and move the handle (3) to the closed position (left) until it clicks.
  3. Push in the orange push pin (4).
  4. Connect the SCSI cable (1) to the ESM board.
  5. Power on the server attached to the ESM board.

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