Chapter 3 Servicing and upgrading a PFC 500/E
40
PFC 500/E Instruction Manual
2 December 1999
Monitoring PFC500/E status
Status lights on the PFC500/E and its CRUs indicate error conditions. These lights are
visible outside the PFC 500/E. Some lights are visible from the front, and others from
the back. The following figure and table describes the status lights.
IMPORTANT: The PFC500 chassis address must be set to 0 (zero)
.
Light
Quantity
Color
Meaning
PFC500/E
Power
1
Green
On when the
PFC 500/E
is powered up.
PFC500/E
System
Check
1
Amber
On when any fault condition exists.
Disk Active
1 per disk
module slot
Green
Off when the disk module slot is empty or
contains a filler module.
Flashing
(mostly off) when the drive is
powered up but not spinning; this is a
normal part of the spin
-
up sequence,
occurring during the spin-up delay of a slot.
Flashing
(at a constant rate) when the disk
drive is spinning up or spinning down
normally.
On when the drive is spinning but not
handling any I/O activity (the ready state).
Flashing
(mostly on) when the disk drive is
spinning and handling I/O activity.
Disk Check
1 per disk
module slot
Amber
On when the disk module is faulty, or as an
indication to remove the drive.
Chassis Address
12
Green
The chassis address for the PFC500 must
be set to 0 (zero), the only chassis
address that is valid for the PFC500.
0
1
2
3
4
5
1
0
6
7
8
9
10
11
2
3
4
5
6
7
8
9
Chassis
address lights
PFC 500/E status lights
Disk module status lights
(two per module)
System
Check
Power
Disk
check
0
Disk
Active
Chassis
address switch
(not visible with
door closed)
