System component description
VNX5500 Hardware Information Guide 21
Power supply/cooling (fan) module LED
The power supply/cooling (fan) modules have a status LED on the front. Figure 10 shows
the LED for the power supply/cooling (fan) modules.
Figure 10 Power supply/cooling (fan) module LED
Table 8 describes the power supply/cooling module (fan) status LED.
VNX5500 rear view
On the rear, a Block and File VNX5500 platform includes the following hardware
components:
◆ One dual 1U SPS
◆ One 3U DPE with two storage processors (SPs), each SP (A and B) having one CPU
module and one power supply module
◆ One to two 1U Control Stations
◆ One to two 2U Data Mover enclosures with one, two, or three Data Movers
Standby power supply rear view
The Block and File (Unified) VNX5500 platform includes a dual 1U, 1.2-kilowatt standby
power supply (SPS) to maintain power to the Block and File (Unified) VNX5500 platform
SP during power loss. Within the SPS, a built-in DC battery pack is charged by way of an
AC-DC converter. AC input power from the power distribution unit (PDU) goes into the SPS
AC power inlet to the AC-DC converter. This converter then converts the AC power to DC
power, which is then stored in to the built-in DC battery pack. When emergency power is
needed by the Block and File (Unified) VNX5500 platform SP, a second DC-AC converter
AC
AC
AC
AC
Power supply/
cooling (fan) power/fault LED
CNS-001673
Table 8 Power supply/cooling (fan) module LED
LED Color State Description
Power/Fault Green On Normal (no faults detected)
Amber Blinking Power supplied but external fault detected
Amber On No power