HPE Nimble Storage HF Series Hardware Manual page 122

To replace the controller shroud:
1 Align the notches in the shroud (marked by arrows) with the pegs on the controller.
2 Lower the shroud into place, making sure the tabs on the shroud seat properly in the controller.
c) For all other models: Lower the PCIe cage back into the controller, making sure that the PCIe cage aligns with the
guide pins. Press down on the top of the PCIe cage ensuring that both riser cards are properly seated in the connectors.
Also make sure that the PCIe cards clear the controller shroud during installation.
1 Guide pins
d) Tighten the bottom thumbscrew.
10. Install the controller into the chassis.
a) Make sure the controller release lever is fully extended.
b) Insert the controller into the chassis and push the controller all the way in until the controller release lever locks into
the release lever catch.
The controller automatically starts.
11. Do the following:
a) From the active controller, update the configuration of any NICs or FC HBAs that were removed from the standby
controller:
For NICs
nic --unassign interface_name --netconfig draft --subnet subnet_name
netconfig --validate draft
netconfig --activate draft --force_ip_update
For FC HBAs
fc --update_config
b) Perform a failover to reverse the controller roles:
failover
2 Riser card
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Upgrade Procedures 122