IBM DS8900F, Введение и руководство по планированию

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Table 48. Power consumption and environmental information for models 993, 994, 996, and E96 (continued)
Measurement Unit of measure Base frame Expansion frame
Startup current duration microseconds (μs or
μsec)
< 200 < 200
Notes:
1. The values represent data obtained from typical systems, which are configured as follows:
• Standard base frames that contain 15 disk drive sets (16 drives per disk drive set, 15 disk drive sets x 16
= 240 disk drives) and Fibre Channel adapters.
• All-flash configurations that contain 8 sets of fully configured High Performance Flash Enclosures Gen2
and 16 Fibre Channel adapters.
• Expansion models that contain 21 drive sets per storage enclosure (21 drive sets x 16 = 336 drives) and
Fibre Channel adapters.
2. All frames and configurations that are used in single-phase mode must not exceed 8 kVA.
Acoustic declaration
Table 49 on page 98 describes the acoustic declaration information for the storage system.
Table 49. Acoustic declaration for fully configured storage system
Model
Declared A-weighted sound power
level, LWAd (B)
1, 4
Declared A-weighted sound pressure
level, LpAm (dB)
2, 3, 4
Operating Idling Operating Idling
Model 993, 994,
and 996
7.9 7.9 62 61
Model E96 7.9 7.9 62 61
Notes:
1. LWAd is the statistical upper-limit A-weighted sound power level (rounded to the nearest 0.1 B).
2. LpAm is the mean A-weighted emission sound pressure level that is measured at the 1-meter
bystander positions (rounded to the nearest dB).
3. 10 dB (decibel) = 1 B (bel).
4. All measurements made in conformance with ISO 7779 and declared in conformance with ISO 9296.
Planning for environmental requirements
You must install your storage system in a location that meets the operating environment requirements for
correct maintenance.
Take the following steps to ensure that you meet these requirements:
1. Note where air intake locations are on the models that compose your storage system.
2. Verify that you can meet the environmental operating requirements at the air intake locations.
3. Consider optimizing the air circulation and cooling for the storage system by using a raised floor,
adjusting the floor layout, and adding perforated tiles around the air intake areas.
Fans and air intake areas
The storage system provides air circulation through various fans throughout the frame. You must maintain
the correct operating environment requirements for your models at each air intake location.
Table 50 on page 99 summarizes fan, intake, and exhaust locations.
98 IBM DS8900F: DS8900F Introduction and Planning Guide