Handling Precautions (For Proper Operations) - NEC Express5800 Series User Manual

Handling precautions (for proper operations)

Be sure to observe the following precautions for the proper functioning of the server. Ignoring the precautions
may cause server malfunction or failure.
 Do not use any cellphones and switch off them near the server. Electric waves from such devices can
cause server to malfunction.
 Install the server in an appropriate place. For details about the installation location, see Chapter 2
Preparations (2. Installation and Connection).
 Before connecting/removing cables to/from peripheral devices, make sure that the server is off and unplug
the power cord, if they are non plug-and-play devices.
Connect the power cord to a 100/200 VAC outlet.

 Make sure that the access LED on the server is off before turning off the power or ejecting an optical disk.
 Wait for at least 30 seconds before connecting power cord to power outlet after disconnecting it.
 If any Uninterruptible Power Supply (UPS) unit is connected, set it to wait for at least 30 seconds before
turning on the server after power off.
 Do not power off or reset the server, nor disconnect the power cord before POST completes.
Turn off the server and unplug the power cord before moving it.

 Regularly clean the server to prevent various types of failure. See Chapter 1 Maintenance (2. Daily
Maintenance) in "Maintenance Guide" for details about cleaning.
 Momentary voltage drop may occur due to lightning strike. To prevent this, use of UPS is recommended.
 In the following cases, check and adjust the system clock before operation.

After transportation

After storage

After the server is used following a period of disuse, in which storage conditions did not conform to
those that guarantee server operations (temperature: 5 to 35°C; humidity: 20% to 80%).
 Check the system clock approximately once per month. Use of a time server (NTP server) is
recommended if high accuracy timing is required by the system.
 Observe the storage conditions (Temperature: 10°C to 55°C, Humidity: 20% to 80%, No condensation of
moisture) to store the server. If this server, internal optional devices, and media set for the backup devices
(tape cartridges) are moved from a cold place to a warm place in a short time, condensation will occur and
cause malfunctions and failures when these are used in such state. To protect important stored data and
property, make sure to wait for a sufficient period to use the server and components in the operating
environment.
Reference: Time effective at avoiding condensation in winter (more than 10°C differences between the
room temperature and atmospheric temperature)
Disk devices: Approximately 2 to 3 hours
Tape media: Approximately 1 day
 This server does not support hibernation/standby function.
 For optional devices, we recommend you use our NEC products. Even if they are successfully installed or
connected, installation of unsupported devices can cause the server to malfunction or even failure. You will
be charged to repair failure or damage caused by use of such products even within warranty period.
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Express5800/R120h-1E User's Guide
Warnings and Additions to This Document