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

Handling precautions
Be sure to observe the following precautions for the proper functioning of the server. Ignoring the precautions
may cause server malfunction or failure.
•
To avoid the influence of electric waves, switch off any cell phone or PHS near the server.
•
Place the server in an appropriate location. For details, refer to Chapter 2 (2. Installation and
Connection).
•
Before connecting/removing cables to/from peripheral devices, make sure that the server is off and
unplug the power cord.
•
Connect the provided power cord to a 100/200 V AC 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 card to the server after unplugging the power
card.
•
If any Uninterruptible Power Supply unit is connected, set it to wait for at least 30 seconds before
turning on the server after power off.
•
After connecting power cord to the server, do not press the POWER switch/LED before the POWER
LED (amber) is unlit.
•
Wait for at least 30 seconds before connecting power cord to power outlet after disconnecting it.
•
Turn off the server and unplug the power cord before moving it.
•
Regularly clean the server to prevent various types of failure. (Refer to Chapter 1 (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.
•
We do not guarantee that any copy-protected CD that does not conform to standards will play on the
CD player.
•
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: 10°C to 40°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.
•
Do not power off or reset the server, nor disconnect the power cord before POST completes.
•
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
•
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.
for proper operations
(
Express5800/R120e-1E User's Guide
Precautions for Use (Be Sure to Read)
)
23