IBM Elastic Storage System 5000 Series User Manual

Table 15. Declared noise emissions for Model 092 expansion enclosure (continued)
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
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.
Shock and vibration specications
Table 16 on page 32 provides the shock testing results for each Model 092 expansion enclosure.
Table 16. Shock testing results
Shock categories Test level Performance
Operational 5 g 10 ms 1/2 Sine <=25 g 10 ms
Non-operational 30 g 10 ms 1/2 Sine <=75 g 11 ms
Table 17 on page 32 provides the vibration testing results for Model 092 expansion enclosure.
Table 17. Vibration testing results
Vibration categories Test level Performance
Operational 0.21 grms 5-500 Hz Random Throughput loss <=10% FCAL <=
0.68 grms
Non-operational 1.04 grms 2-200 Hz Random <=3.12 grms
Shipping 0.3 g 2-200 Hz Sine <=5 g
Rotational vibration Normal operation performance
measurements in enclosure with
no external vibration.
Throughput loss for all drives of the
same type within performance
prole.
32 IBM Elastic Storage System 5000: Model 092 Hardware Guide

IBM Elastic Storage System 5000 Series Specifications

General

Brand	IBM
Model	Elastic Storage System 5000 Series
Category	Enclosure
Language	English