Figure 53 Removal Of A Sas Expander Module - Seagate Exos CORVAULT Hardware Installation And Maintenance Manual

7. Locate the SAS expander module you need to replace from its location against the chassis sidewall and opposite the
auxiliary bay.
NOTE The fault LED for each SAS expander module is on the component side of SAS expander module and has a
steady or blinking amber LED if a fault condition exists. Otherwise, it is off to indicate the SAS expander module is
functioning normally.
8. Grasping a release latch in either hand, simultaneously lift both release latches away from center until it disengages
from the SAS riser sideplane.
9. Lift the SAS expander module carefully away from its slot and set it aside.

Figure 53 Removal of a SAS expander module

10. While maintaining proper static protection, remove the new SAS expander module from its static-protected
container.
11. Inspect the SAS expander module carefully to make sure it is not damaged in any way, paying particular attention to
the connectors.
12. Using the same orientation, make sure the SAS expander module has the smooth side to the main bay and the
component side to the chassis, then press downward into its empty slot until you feel it connect to the SAS riser
sideplane.
13. If you are replacing all SAS expander modules, repeat the entire process for each of them.
14. Verify the SAS expander module fault LED is off.
15. Return to the front panel of the storage enclosure and verify that the Fault-Main bay LED is not steady amber.
16. Close the half of the main bay cover you opened, latching it firmly in place.
17. (Optional) Lower and remove the mechanical lift.
18. Facing the front panel, press both safety lock switches to release the rails.
19. Carefully exert even pressure on both sides of the storage enclosure front and continue insertion all the way into the
rack until it locks in the storage position. Do not force insertion, which could damage the rails.
68 Chapter 7 In-service field maintenance