Specifications

4
Removing and Replacing Cabinet Components
This chapter explains how to remove and replace storage array cabinet
components which include the following:
• I/O bulkheads
• Power controllers
The procedures for installing storage devices are documented in Chapter 5.
Removing or replacing cabinet parts require you to observe the following safety
precautions:
WARNING
Hazardous voltages are present inside the storage cabinet and enclosures.
You must be a qualified Digital Multivendor Services engineer to perform
installation procedures. Otherwise, you may injure yourself or others, and
you may damage the equipment.
When you install a new component, for maximum safety, use the following
procedures for disconnecting and connecting the power source:
• Turn off the power control on all components in the cabinet.
• Turn off the power controller and disconnect it from the outlet.
• Turn off site power at the main circuit breaker.
• Place a tag-out tag on the circuit breaker.
• When you have finished with the installation, turn on site power at the main
circuit breaker.
• Remove the tag-out tag on the circuit breaker.
• Connect the power controller power cord to the outlet and turn it on.
• Turn on all components in the cabinet.
Complete safety and tag-out procedures are presented in the Digital safety
courses listed Table 1.
Removing and Replacing Cabinet Components 4–1