Module Remove and Replace 189
IMPORTANT: Install the chassis into the rack before re-inserting the drive modules. Two people are
required to move the chassis.
1 Support the bottom of the chassis. Carefully lift/align the chassis and while maintaining a level
position for the chassis, slide it into the rack.
2 Using the appropriate mounting hardware, secure the chassis to the rack.
3 Using the applicable retaining screws, secure the front and rear of the chassis to the rack and rails.
Completing the Process
This section provides a procedure for ensuring that the CRU components installed in the replacement
RAID chassis function properly.
1 Reconnect data cables between devices, as needed, to return to the original cabling configuration:
• Between cascaded storage expansion chassis.
• Between the controllers (RAID chassis) and peripheral or SAN devices.
• Between the RAID chassis and the host.
2 Reconnect power cables to the storage chassis – Powering On/Powering Off on page 105.
Verifying Component Operation
1 Restart system devices by moving the power switch on the power supply to the On position in the
following sequence:
a Expansion chassis
first
.
b RAID chassis
next
.
c Data host
last
(if powered down for maintenance purposes).
Allow time for each device to complete its Power On Self Tests (POST) before proceeding.
2 Perform a rescan to force a fresh discovery of all expansion chassis connected to the RAID chassis.
• This step clears the internal SAS layout information, reassigns chassis IDs, and ensures the
chassis are displayed in the proper order.
• Use the CLI or disk management utility (GUI) to perform the rescan:
To perform a rescan using the CLI, enter the following command:
rescan
To perform a rescan using the disk management utility (GUI):
a Verify that both controllers are operating normally.
b In the System topic, select Action > Rescan Disk Channels.
c Select
Rescan.
Using LEDs
View LEDs on the chassis front and rear panels.
• Verify front panel LEDs
• Front panel LEDs reside on the Ops panel located on the left ear flange. Disk LEDs are located on
the carrier modules.
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