Symantec Shelf NetBackup 5220, Руководство по безопасности, Страница: 46 / 64

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Be sure that all devices are correctly shut down and all programs on any devices
are not running. If you disconnect devices while programs are running, data loss
may occur.
In order to maintain adequate thermal levels, you MUST install DIMMs and
DIMM blanks in the appropriate DIMM slots.
All blue DIMM slots in CPU 1 and CPU 2 must either have a DIMM or DIMM
blank installed. You may store extra DIMM blanks in any of the unused CPU 1
DIMM slots.
Note: It does not matter which DIMMs are installed into which slots, they are
interchangeable.
The power supply is hot-swappable only when two power supplies are installed into the
NetBackup 5220. If only one power supply is installed, the power supply can be replaced
if it fails or if one of the fans installed into the power supply fails.
The fans in the power supply module are not removable. They remain inside the module
as a complete unit. If there are problems with the fans, the entire power supply module
must be removed and replaced.
You must power the device down, turn off all peripheral devices connected to the
system, turn off the system by pressing the power button, and unplug the AC
power cord from the main AC power source before removing or replacing the
power supply.
Chassis issues
Problems may occur because the chassis cover is damaged or improperly installed.
Intake and output vents in the front and rear of the chassis may be blocked or damaged.
A visual inspection of all parts of the chassis is required.