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This chapter provides procedures for replacing CRUs (customer-replaceable units), including precautions, removal instructions,
installation instructions, and verification of successful installation. Each procedure addresses a specific task.
Topics:
•
ESD precautions
•
Dealing with hardware faults
•
Firmware updates
•
Shutting down attached hosts
•
Shutting down a controller module
•
Verifying component failure
•
Customer-replaceable units (CRUs)
•
Verifying component operation
•
Performing updates in PowerVault Manager after replacing an FC or SAS HBA
ESD precautions
Before you begin any of the procedures, review the following precautions and preventive measures.
Preventing electrostatic discharge
To prevent electrostatic discharge (ESD) from damaging the system, be aware of the precautions to consider when setting up
the system or handling parts. A discharge of static electricity from a finger or other conductor may damage system boards or
other static-sensitive devices. This type of damage may reduce the life expectancy of the device.
CAUTION:
Parts can be damaged by electrostatic discharge. Follow these precautions:
● Avoid hand contact by transporting and storing products in static-safe containers.
● Keep electrostatic-sensitive parts in their containers until they arrive at static-protected workstations.
● Place parts in a static-protected area before removing them from their containers.
● Avoid touching pins, leads, or circuitry.
● Always be properly grounded when touching a static-sensitive component or assembly.
● Remove clutter (plastic, vinyl, foam) from the static-protected workstation.
Grounding methods to prevent electrostatic discharge
Several methods are used for grounding. Adhere to the following precautions when handling or installing electrostatic-sensitive
parts.
CAUTION:
Parts can be damaged by electrostatic discharge. Use proper anti-static protection:
● Keep the replacement CRU in the ESD bag until needed; and when removing a CRU from the enclosure,
immediately place it in the ESD bag and anti-static packaging.
● Wear an ESD wrist strap connected by a ground cord to a grounded workstation or unpainted surface of the
computer chassis. Wrist straps are flexible straps with a minimum of 1 megohm (± 10 percent) resistance in
the ground cords. To provide proper ground, wear the strap snug against the skin.
● If an ESD wrist strap is unavailable, touch an unpainted surface of the chassis before handling the
component.
Module removal and replacement
Module removal and replacement
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Troubleshooting
