Replace A 5U Enclosure Controller Module - Seagate Exos X 4006 Series Hardware Installation And Maintenance Manual

4. Complete the following actions to close the related drawer:
a. Press and hold the safety lock latches with the blue touchpoint at the front of both extended drawer slide rails.
b. Pressing simultaneously inward, begin sliding the drawer back into place until the safety lock clears the opening.
c. Placing the heels of both palms against the face of the drawer near the anti-tamper locks, exert even inward pressure
until the drawer is almost flush with the rack ear flanges.
d. Simultaneously press inward and hold both drawer pull handles as you push the drawer closed until it fully latches.
5. Verify that the fault LED on the replaced DDIC is off after properly inserting and seating it in the empty slot.
6. Facing the front of the storage enclosure, verify that the Power On LED is green and there are no fault conditions.

Replace a 5U enclosure controller module

Both controller modules (CMs) manage the flow of data to and from the storage enclosure. Each CM provides a very
specialized, solutions-specific interaction that depends on your system configuration and software implementation, including
SAS zoning, failover and failback procedures, and multi-path procedures.
An important feature of the storage enclosure design is redundancy. The enclosure will maintain continuous operation during
the replacement of a single CM as long as it is within the time limit of 7 minutes, since removing a CM significantly alters
airflow in the storage enclosure.
CAUTION If you remove any FRU while the storage enclosure is powered up, you must replace it with a tested good
spare within the allotted time for that FRU. If you do not replace the FRU 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.
Figure 81 Safety lock to release left drawer slide rail of lower drawer
Chapter 11 In-service field maintenance for 5U enclosures
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