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Table 8. Power rating examples for control enclosures and drives (continued)
Control
Enclosure
Type
Storwize
200 GB
V5030E
900 GB SAS
10 KPM 2.5-
inch
Table 9 on page 7 shows examples of the power ratings of Storwize V5000E expansion enclosures with
different drive configurations.
Table 9. Power rating examples for 2U expansion enclosures
Drive quantity and type
24 SFF NL
12 LFF Flash
12 LFF NL
Workload: 70/30 random cache miss; 4 K block size.
Table 10 on page 7 shows examples of the power ratings of 2072-92F expansion enclosures with
different drive configurations. The same power ratings apply to 2072-E92 expansion enclosures.
Table 10. Power consumption examples per 5U expansion enclosure
Model and type
2072-92F
2072-92F
Temperature requirements
Ensure that the temperature and humidity in the environment falls within the ranges that are shown in
Table 11 on page 8. System airflow is from the front to the rear of each enclosure:
• Airflow passes between drive carriers and through each enclosure.
• Airflow for the upper 4U of the 5U expansion enclosure enters the front, passes between the disk
drives, and exits through the large fans in the rear of the enclosure.
• Airflow for the lower 1U of the 5U expansion enclosure is driven through the power supplies through 40
mm X 56 mm fans. Air continues through the chassis cooling the ESMs or controllers and exits the rear
of the enclosure.
• The combined power and cooling module exhausts air from the rear of each canister.
Drive Information
Quantity
Block Size
24
4 K
256 K
24
256 K
Average
193 W
150 W - 180 W
166 W
Configuration
1 enclosure with 92
10 TB nearline SAS
drives
1 enclosure with 92
15 TB tier 1 flash
drives
Average
273
299
350
Expansion enclosure
Peak
Total power
consumption
848 W
748 W
Chapter 2. Environmental requirements 7
Watts
Peak
Idle
281
249
315
249
359
316
Idle (Average)
165 W
Caloric value
(BTU/hr)
-
-
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