IBM Storwize V3700 User Manual

v ▌1▐ Release tab
v ▌2▐ Handle
v ▌3▐ Power supply LED indicators
v ▌4▐ DC power cable connector
Each power supply unit has four LED indicators (Table 7).
Table 7. Direct current power supply LEDs
Name Label Color Description
Input
status
IN
Green
Off No input power detected.
On Direct current input power detected.
Output
status
Green
Off PSU is not providing DC output power.
On PSU is providing DC output power.
Fault Amber
Off No fault detected.
On PSU fault has been detected.
BLINK PSU is being identified. A fault may have been
detected.
(None)
OK
Blue Not used.
The LEDs have a comparable meaning to the LEDs on the AC power supply.
Problem diagnosis and service procedures are the same. For details, see “Powering
on the system” on page 50.
Connecting a DC power supply to a DC power source
A Storwize V3700 enclosure that is DC powered contains two DC power supply
units (PSUs). Each unit must be connected to a suitable -48V DC power source. To
provide redundancy in a power circuit failure, connect the two PSUs to different
DC power sources.
Use the supplied cables to connect the DC PSUs to the power sources. Use only
the IBM supplied DC power cable (IBM part number 00AR087) to connect the unit
to a DC power source.
Each PSU cable must be protected by a 20A circuit breaker. These instructions
assume that the circuit breaker is separate from the DC power distribution unit.
Refer to the DC power distribution unit documentation and the circuit breaker
v3500191
1
2
3
4
Figure 8. Direct current power supply unit connectors and indicators
Chapter 1. Before you begin the installation 13

IBM Storwize V3700 Specifications

General

Model	IBM Storwize V3700
Maximum Drives	120
RAID Levels	0, 1, 5, 6, 10
Form Factor	2U
Drive Types	SAS, Nearline SAS, SSD
Host Interface	1 Gb iSCSI, 10 Gb iSCSI, 6 Gb SAS, 8 Gb FC
Cache	4 GB per control enclosure
Number of Host Ports	4 per control enclosure
Cache Memory	4 GB per control enclosure
Power Supply	Dual, hot-swappable
Operating Temperature	10°C to 35°C
Non-operating Temperature	-40°C to 60°C (-40°F to 140°F)
Operating Humidity	20% to 80%
Non-operating Humidity	5% to 95%
Dimensions	8.7 cm x 48.3 cm x 55.6 cm