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• Schedule a downtime maintenance window for this procedure. You cannot access data on the
storage array until you have successfully completed this procedure. Because both controllers
must have the same HIC configuration when they are powered on, the power must be off when
you install HICs.
• Make sure you have the following:
◦ Two HICs that are compatible with your controllers.
◦ An ESD wristband, or you have taken other antistatic precautions.
◦ A flat, static free work area.
◦ Labels to identify each cable that is connected to the controller canister.
◦ A #1 Phillips screwdriver.
◦ A management station with a browser that can access ThinkSystem System Manager for
the controller. (To open the System Manager interface, point the browser to the controller's
domain name or IP address.)
Possible loss of data access — Never install a HIC in a DE6400 or DE6600
controller canister if that HIC was designed for another DE-Series controller. In
addition, both controllers and both HICs must be identical. The presence of
incompatible or mismatched HICs causes the controllers to lock down when you
apply power.
7.2.1. Step 1: Place controller shelf offline
Place the controller shelf offline so you can safely upgrade the HICs.
Steps
1. From the Home page of ThinkSystem System Manager, ensure that the storage array has
Optimal status.
If the status is not Optimal, use the Recovery Guru or contact technical support to resolve the
problem. Do not continue with this procedure.
2. Back up the storage array's configuration database using ThinkSystem System Manager.
If a problem occurs when you remove a controller, you can use the saved file to restore your
configuration. The system will save the current state of the RAID configuration database, which
includes all data for volume groups and disk pools on the controller.
◦ From System Manager:
a. Select Support › Support Center › Diagnostics.
b. Select Collect Configuration Data.
c. Click Collect.
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