IBM Storwize V7000 - Page 184

Table 29. Declared noise emissions for 2076-92F SAS expansion enclosures in accordance with ISO 9296
Model and type Declared A-Weighted Sound Power
Level, L
WAd
(B)
Declared A-Weighted Sound Pressure
Level, L
pAm
(dB)
Operating Idling Operating Idling
Fully congured
expansion
enclosure, MTM/
Model, 2076-92F
8.5 8.5 85 85
Notes:
1. Declared level L
WAd
is the upper-limit A-weighted sound power level. Declared level L
pAm
is the mean A-
weighted sound pressure level measured at the 1-meter bystander positions.
2. All measurements are made in conformance with ISO 7779 and declared in conformance with ISO 9296.
3. "B" and "dB" are abbreviations for bels and decibels, respectively. 1 B = 10 dB.
Important: Government regulations (such as those prescribed by OSHA or European Community Directives)
may govern noise level exposure in the workplace and may apply to you and your server installation. This
system is available with an optional acoustical door feature that can help reduce the noise emitted from this
system. The actual sound pressure levels in your installation depend upon a variety of factors, including the
number of racks in the installation; the size, materials, and conguration of the room where you designate the
racks to be installed; the noise levels from other equipment; the room ambient temperature, and employees'
location in relation to the equipment. Further, compliance with such government regulations also depends
upon a variety of additional factors, including the duration of employees' exposure and whether employees
wear hearing protection. IBM recommends that you consult with qualied experts in this eld to determine
whether you are in compliance with the applicable regulations.
The noise emission level that is stated is the declared (upper limit) sound power level, in decibels, for a
random sample of machines. All measurements are made in accordance with ISO 7779 and reported in
conformance with ISO 9296.
Acoustical Declaration with Noise Hazard Notice
Figure 150 on page 155 indicates the declared noise emissions values in accordance with ISO 9296.
154
Storwize V7000 : Gen3 Quick Installation Guide for MTM 2076-724, 2076-U7B, 2076-12F, 2076-24F, and
2076-92F