This guide covers the troubleshooting of RAID storage controllers, card specifications and the process for removal and replacement Content RAID Controller Troubleshooting


Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.


Confirm that cables “SAS_A”,“SAS_B” are connected.(Appendix C How to locate RAID controller)

Ensure that RAID controller card is solidly seated in its connector.

Cover Gemini

Reconnect the system to the electrical outlet, and turn on the system and attached peripherals.

If the problem is not resolved, refer to Diagnostics.


Boot Detection

If message is inspected, go back to Troubleshooting to make sure cables are solidly connected.

RAID Controller Battery

If message in red square is inspected, allow 30 minutes for charging or otherwise exchange storage controller battery.

RAID Controller Bootable Device

If message is shown, go to 5.2.3 Hardware diagnostics utilities for further diagnosis. Otherwise, go to 5.3 How to replace if all RAID devices are confirmed as normally functioned.

LCD Message

Please refer to Appendix D - LCD Messages for more detail.

Hardware Diagnostics Utilities

  1. Reboot Gemini
  2. Press F11 to enter Boot Manager, System Utilities, Launch Hardware Diagnostics, then entering ePSA.
  3. In ePSA, click Hard Drive option to test.
  4. If all RAID devices are missing, go to How to replace RAID controller card.

How to Replace

RAID Controller Card Specs

  • A1000 - PERC H710P
  • A1100 - PERC H710P
  • A2000 - PERC H710P
  • A2100 - PERC H710P
  • A5000 - PERC H710P
  • A5100 - PERC H710P
  • A5200 - PERC H710P
  • S1000 - PERC H310
  • F1000 - PERC H310

Replace RAID Controller Cards

  1. Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet and peripherals.
  2. Remove Appliance Cover (How-to-uncover)
  3. Push down the two release levers at the edge of the card to disengage the card from the connector.
  4. Disengage the card from the RIAD controller card holder on the system board.
  5. Remove the card.
  6. Replace Appliance cover
  7. Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals.