Fan modules
16 October 2001
PFR 500/E Instruction Manual
23
Fan modules
There are two fan modules used to cool the components installed in the PFR500/E
chassis. The fan modules connect to the midplane board for power.
One status LED on the rear panel of the fan module indicates status. The status LED
is described in the “Monitoring PFR 500 status” section of Chapter 3.
A retaining screw on the fan module holds the module in place.
NOTE: If power is connected, fans run at low speed even with the power supply
switches in standby position.
Configurations
The PFR 500 RAID Storage Chassis minimum and maximum configurations are as
follows.
The maximum configuration provides the most redundancy, and therefore the highest
degree of system availability.
The PFR500E RAID Expansion Chassis minimum and maximum configurations are
as follows.
IMPORTANT: Grass Valley Group does not support mixing disk drives of differing
capacities in any RAID chassis. All disk drives in any RAID chassis must be of the
same capacity. For example, if a PFR 500 and a PFR 500E are connected, all the
disk drives in both the PFR 500 and the PFR500E must be of the same capacity.
PFR 500
Configuration
RAID Controller
Loop Bypass
Board
Power Supplies/Fan
modules
Disk Modules
minimum
1
1
2
5
maximum
2
0
2
10
PFR 500E
Configuration
Loop Bypass
Board
Power Supplies/Fan
modules
Disk Modules
minimum
2
2
5
maximum
2
2
10
