IBM System Storage Subsystem DS5020 - Manual (Page 156)

B controller bay to fully latch it into place. Do not force fit. The controller is
designed to prevent it from being inserted into the chassis incorrectly.
Attention: Make sure that the levers lock into place in the storage
subsystem chassis.
c. Repeat step 11a on page 125 and step 11b on page 125 to replace the
second controller.
12. Wait up to 5 minutes for the DS Storage Manager client software to recognize
the new controller.
13. Complete any remaining Recovery Guru procedures for controller replacement,
if needed.
14. Check the LEDs on the new controller to verify that the controller is fully
operational.
15. Remove the antistatic protection.
16. Use the DS Storage Manager client Subsystem Management window to check
the status of all components in the storage subsystem.
v If the new controller is online and the DS Storage Manager client
Subsystem Management window indicates normal operation, go to step 19.
v If the new controller is online and the DS Storage Manager client
Subsystem Management window indicates a problem status, go to
“Troubleshooting the storage subsystem ” on page 100.
v If the new controller is offline, go to step 17.
17. If the newly inserted controller is in an offline state, see the DS Storage
Manager client online help for instructions on bringing the controller online.
If necessary, open the DS Storage Manager Subsystem Management window
and place the controller on-line; select the off-line controller and click
Advanced
Recovery Place controller online.
18. Verify the state of the LEDs on the newly inserted controller. See “Controller
LEDs” on page 104. You can also use the DS Storage Manager client
Subsystem Management window to identify any new faults. Do any storage
subsystems have a fault (Needs Attention) status?
v Yes – Select the Recovery Guru toolbar button in the Subsystem
Management window, and complete the recovery procedure. If the problem
persists, contact your IBM service representative.
v No – Go to step 19.
19. Use the DS Storage Manager client software to print a new storage subsystem
profile.
Working with hot-swap E-DDMs
This section explains how you can increase the storage subsystem capacity by
adding more E-DDMs or by replacing existing E-DDMs with ones that have a larger
capacity.
Before you begin, complete the following tasks:
v Read the safety and handling guidelines in “Safety” on page xiii and in “Handling
static-sensitive devices” on page 29.
v Make sure that your current system configuration is working properly.
v Back up all important data before you make changes to data storage devices.
Before you install or remove E-DDM CRUs, review the following information:
126 IBM System Storage DS5020 Storage Subsystem: Installation, User’s, and Maintenance Guide