User`s guide

StorageWorks Status Reporting
2.2 Shelf Status and Power Supply Status
Note
When a shelf has two power supplies, you must observe the LEDs on both
power supplies (see Table 2–3) to determine the status.
Table 2–3 Shelf and Dual Power Supply Status LEDs
Status LED PS1† PS2‡ Indication
Shelf (upper)
PS (lower)
On
On
On
On
Normal status
System is operating normally.
Shelf (upper)
PS (lower)
Off
On
Off
On
Fault status
There is a shelf fault; there is no power supply fault.
Replace blower.
Shelf (upper)
PS (lower)
Off
On
Off
Off
Fault status
PS1 is operational.
Replace PS2.
Shelf (upper)
PS (lower)
Off
Off
Off
On
Fault status
PS2 is operational.
Replace PS1.
Shelf (upper)
PS (lower)
Off
Off
Off
Off
Fault status
Possible PS1 and PS2 fault or input power problem
† Shelf power supply installed in slot 7.
‡ Redundant power supply installed in slot 6.
StorageWorks Status Reporting 2–9