Before You Begin - Sun Microsystems Sun Fire V490 Parts Installation And Removal Manual

About Hot-Swappable and
Hot-Pluggable Components
The power supplies are hot-swappable. You can remove and replace a power supply
while the system is running, as long as the other power supply is working properly.
For more information, see the following:
"How to Remove a Power Supply" on page 49
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"How to Install a Power Supply" on page 52
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The disk drives are hot-pluggable. You must issue special commands before
removal. For more information, see the following:
"How to Remove a Disk Drive Using the Hot-Plug Operation" on page 59
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"How to Install a Disk Drive Using the Hot-Plug Operation" on page 63
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Caution – Fan trays are not hot-swappable, and must be kept installed while the
system is running to ensure proper cooling. Do not attempt to remove either fan tray
while the system is running.
How to Remove the Power Supply
Access Panel

Before You Begin

Complete this task:
"How to Avoid Electrostatic Discharge" on page 41
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What to Do
1. Use the system key to unlock the media door.
The security lock secures the media door, power supply access panel, and Fan
Tray 0.
46 Sun Fire V490 Server Parts Installation and Removal Guide • October 2005