TABLE
| Temperature [˚C (˚F)]1 | Humidity [%RH]1 | |
System name | Operating | ||
|
|
|
|
SPARC
Enterprise
M8000
Server
and
SPARC
Enterprise
M9000
Server
5 to 32 (41 to 89.6) at an installation altitude ranging from 0 to less than 1,500 m (4921 feet) above sea level
5 to 30 (41 to 86) at an installation altitude ranging from 1500 m (4921 feet) to less than 2000 m (6562 feet) above sea level
5 to 28 (41 to 82.4) at an installation altitude ranging from 2000 m (6562 feet) to less than 2500 m (8202 feet) above sea level
5 to 26 (41 to 78.8) at an installation altitude ranging from 2500 m (8202 feet) to 3000 m (9843 feet) above sea level
0 to 50 | 20 to 80 | 8 to 80 |
(32 to 122)
1Noncondensing.
2.1.2Recommended Ambient Temperature and Humidity
Keep the temperature in the computer room at a comfortable temperature for people or slightly lower. At this temperature level, inadequate cooling of parts of the computer room due to the heat generated by a device or to trapped hot air can be prevented, reducing related adverse effects on each device in the entire system configuration.
Also, if an air conditioning failure occurs, there is sufficient time available before the temperature reaches the upper limit.
Special consideration must be paid to humidity if underfloor ventilation is used. Normally, air contains water vapor. Relative humidity, which is indicated as a percentage (%) of the total amount of water vapor that can exist in the air without condensing, is inversely proportional to air temperature; it goes down when the temperature rises, and goes up when the temperature drops.
For example, air with a relative humidity of 45% at a temperature of 24˚C (75˚F) has a relative humidity of 65% at a temperature of 18˚C (64˚F); and if the temperature drops farther, the relative humidity rises to more than 65%, eventually to condense out as water droplets.