VERITAS 5250, Hardware Installation Manual

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Components of the control panel include the following.
1. The Input switch enables you to set the Unit Identification display.
2. The Power On/Standby LED is amber when only standby power is available.
The LED is green when system power is available.
3. The Module Fault LED is on when there is a system hardware fault. A Power
Cooling Module (PCM) or an I/O module may be at fault.
4. The Logical Status LED shows a change of status or a fault, typically associated
with the shelf's disk drives. This LED also indicates an issue with an internal
RAID controller or external RAID controller, or with a host bus adapter.
5. The Unit Identification Display provides information to assist in the configuration
of multiple storage shelves.
Storage shelf rear panel
The rear panel of the storage shelf contains two main components; two Power
Cooling Modules (PCMs) and two I/O Module canisters.
17 Hardware overview
Storage shelf rear panel