Power On/Off Module; Before You Begin; Verifying Component Failure; Removing The Power On/Off Module - HP 418800-B21 - StorageWorks Modular Smart Array 70 Storage Enclosure Maintenance And Service Manual

Power on/off module

Before you begin

CAUTION:
Before removing the failed component, make sure that you have the replacement part available.
•
Removing a component impacts the airflow and cooling ability of the device.
Do not remove more than one component or blank from the enclosure at a time. Doing so impacts
•
the airflow and cooling ability of the device. To avoid possible overheating, insert the new or
replacement component as quickly as possible. If the internal temperature exceeds acceptable limits,
the MSA70 may overheat and automatically shut down or restart.
Parts can be damaged by electrostatic discharge. Use proper anti-static protection.
•

Verifying component failure

Use the following methods to verify component failure:
Check the host log for errors.
•
Check the heartbeat, fault, and power supply status LEDs as identified in the following table:
•
Item
Heartbeat LED
Fault LED
Power supply LED

Removing the power on/off module

Power down the enclosure:
1.
Power down any attached servers. See the server documentation.
e.
Press the Power On/Standby button on the enclosure.
f.
Wait for the system power LED to go from green to amber.
g.
Disconnect the power cords.
h.
Extend or remove the enclosure from the rack in which it may be installed:
2.
Description
Green = System activity
Off = No system activity
Amber = Fault condition
Off = No fault condition
Green = Power turned on and power
supply functioning properly
Amber = Standby (auxiliary power
present)
Blinking amber = Power to this power
supply not present
Off = One or more of the following
conditions exists:
• A/C power unavailable
• Power supply failed
Power supply in standby mode
•
Power supply exceeded current
•
limit
Removal and replacement procedures 36