Figure 59 Release Of The Controller Module Latch Handle - Seagate Exos CORVAULT Hardware Installation And Maintenance Manual

Troubleshooting indicates a problem with the CM. When you are isolating connectivity or disk drive fault conditions,
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stop the data flow to the affected disk groups from all hosts as a data protection precaution and perform a backup of
your data.
When all of the prior LED fault conditions occur simultaneously, it is a clear indication of component failure.
CAUTION If you remove any FRU while the storage enclosure is powered up, you must replace it with a known
good spare within the allotted time for that FRU. If you do not replace the FRU and, when applicable, close the related
cover within the identified time limit, you void the product warranty and the storage enclosure might overheat, causing
equipment failure and possible data loss.
CAUTION Do not remove covers from any FRU. There is a danger of electric shock inside. Return the FRU to your
supplier for repair.
To remove and replace a controller module:
1. Consider the implications of the replacement, reviewing all solution service documentation for pre- and post-
replacement procedures to minimize system disruption.
2. (Optional) If you plan on removing all CMs, properly shut down the storage enclosure.
3. Retrieve the new CM in its static-protected container, ready to access and use it upon removal of the faulty one.
4. Facing the rear of the rack cabinet, locate the faulty CM.
5. If each cable does not have a numbered label, label each as you disconnect it from its port.
6. Twist the thumbscrew counter-clockwise only far enough to loosen the latch handle.
7. Pull outward, then downward on the latch handle to leverage the CM away from the midplane.

Figure 59 Release of the controller module latch handle

8. Gently pull the latch handle, easing the CM away from the rear panel and keeping it level with both hands during
removal, then set aside.
9. While maintaining proper static protection, remove the new CM from its static-protected container.
Chapter 7 In-service field maintenance
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