IBM Storwize V5000E, Quick Installation Manual

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Table 8. Power rating examples for control enclosures and drives (continued)
Control
Enclosure
Drive Information Watts
Type Quantity Block Size Average Peak Idle
Storwize
V5030E
200 GB 24 4 K 273 281 249
256 K 299 315 249
900 GB SAS
10 KPM 2.5-
inch
24 256 K 350 359 316
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
Expansion enclosure
Average Peak Idle (Average)
24 SFF NL 193 W
12 LFF Flash 150 W - 180 W
12 LFF NL 166 W 165 W
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 Configuration
Total power
consumption
Caloric value
(BTU/hr)
2072-92F 1 enclosure with 92
10 TB nearline SAS
drives
848 W -
2072-92F 1 enclosure with 92
15 TB tier 1 flash
drives
748 W -
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.
Chapter 2. Environmental requirements 7