Hitachi Virtual Storage Platform 5000 Series User Manual

Item
Condition
Operating Not operating Shipping and storage
■
DBF3: L
pAm
60dB,
L
wA
6.0Bel
■
DBN: L
pAm
60dB,
L
wA
6.0Bel
1. Fire suppression systems and acoustic noise: Hitachi does not test storage systems and hard
disk drives for compatibility with re suppression systems and pneumatic sirens. Hitachi also
does not provide recommendations or claim compatibility with any re suppression systems
and pneumatic sirens. Customer is responsible to follow their local or national regulations.
2. See ANSI/ISA-71.04-2013 Environmental Conditions for Process Measurement and Control
Systems: Airborne Contaminants.
3. Meets the highest allowable temperature conditions and complies with ASHRAE (American
Society of Heating, Refrigerating and Air-Conditioning Engineers) 2011 Thermal Guidelines
Class A2. The maximum value of the ambient temperature and the altitude is from 35
degrees C at an altitude of 950 meters (3000 feet) to 28 degrees C at an altitude of 3050
meters (10000 feet). The allowable ambient temperature is decreased by 1 degree C for every
300-meter increase in altitude above 950 meters.
4. The acoustic level is measured under the following conditions in accordance with ISO7779
and the value is declared based on ISO9296.
In a normal installation area (data center/general oce), the storage system is surrounded by
dierent elements from the following measuring conditions according to ISO, such as noise
sources other than the storage system (other devices) , the walls and ceilings that reect the
sound.
Therefore, the values described in the table do not guarantee the acoustic level in the actual
installation area.
■ Measurement environment: In a semi-anechoic room whose ambient temperature is 23
degrees C ± 2 degrees C
■ Device installation position: The Controller Chassis is at the bottom of the rack and the
Drive Box is at a height of 1.5 meters in the rack
■ Measurement position: 1 meter away from the front, rear, left, or right side of the storage
system and 1.5 meters high (at four points)
■ Measurement value: Energy average value of the four points (front, rear, left, and right)
5. Sound pressure level [LA] changes from 45 dB to 63 dB according to the ambient
temperature, drive conguration and operating status. The maximum could be 67 dB during
maintenance procedure for failed ENC or Power Supply.
6. NVMe drives have a temperature range from 10 ºC to 35 ºC while in operation.
Environmental
specications
Chapter 3: Specications
Hitachi Virtual Storage Platform 5000 Series Hardware Guide 66

Hitachi Virtual Storage Platform 5000 Series Specifications

General

Brand	Hitachi
Model	Virtual Storage Platform 5000 Series
Category	Storage
Language	English