Silicon Graphics InfiniteStorage 4000 Series System Upgrade Manual page 90

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12. Look at the LEDs on the controller canister to make sure that the controller is
rebooting correctly.
The seven-segment display shows the sequence OS+ Sd+ blank- to indicate
that the controller is performing Start-of-day (SOD) processing. After the
controller successfully completes rebooting, the seven-segment display shows the
tray ID matching the seven-segment display on the second controller. After this
time, you can discover the controller by using the storage management software.
Depending on your version of HIC, you might receive an error message about a
failed host I/O card. If this problem occurs, follow the instructions in the
Recovery Guru.
Figure 57 Controller LEDs
13. Look at the Controller Service Action Required LED, and look at all of the
controller-drive tray's Service Action Required LEDs. Based on the LED status,
perform one of these actions:
All of the Service Action Required LEDs are off, and the Array
—
Management Window indicates an Optimal status – Go to step 15.
Any of the controller-drive tray's Service Action Required LEDs are on,
—
or the Controller Service Action Required LED is on – Check that the
controller canister has been installed correctly. Reinstall the controller
canister if necessary. Go to step 14.
NOTE If your storage array does not have an Optimal status, click the Recovery
Guru toolbar button in the Array Management Window to determine if any other
actions are required.
1. Host Link 1 Service Action Required LED (Amber)
2. Host Link 2 Service Action Required LED (Amber)
3. Battery Service Action Required LED (Amber)
4. Controller Service Action Allowed LED (Blue)
5. Controller Service Action Required LED (Amber)