Fastt500 Raid Controller Indicator Lights (Back Panel); Lights - IBM TotalStorage DS4000 Hardware Maintenance Manual

Table 24. FAStT500 RAID controller indicator lights (front panel) (continued)
Indicator light Color
Controller fan Amber
fault
Controller fault Amber
Fast write Green
cache
Component: battery
Fault-A or Amber
Fault-B
Full Charge-A Green
or
Full Charge-B
1. Always use the storage management software to identify the failure.
2. There are eight status lights (the Heartbeat and seven others) that glow in various patterns, depending on the
controller status.
3. The fast write cache indicator light is on when there is data in the cache and it blinks during a fast write
operation.
4. If either Full Charge-A or Full Charge-B indicator light blink, the battery is in the process of charging.
More indicator lights are located on the back of the controller unit, as shown in
Figure 32.
Power supply
Figure 32. FAStT500 RAID controller indicator lights (back panel)
Table 25 on page 50 describes the back panel FAStT500 RAID controller indicator

lights.

Normal Problem
Operation Indicator
Off On
Off On
Steady or Software
blinking (3) dependent (3)
Off On
On (4) Off
Fan and
communications
fault
module fault
Possible conditions suggested
by the problem indicator (1)
v Controller fan failed
v Fan and communications module is missing,
unplugged, or failed
v Circuitry failure
v Overtemperature condition
Controller failed; one or more memory modules
failed (SIMMs or DIMMs).
Normal operation is off if:
v Cache is not enabled.
v Battery is not ready.
v Left or right battery bank failed.
v Battery is either discharged or defective.
v Left or right battery bank is not fully charged.
v Power has been off for an extended period and
has drained battery power.
v Batteries are weak.
Power supply
fault
Chapter 8. Type 3552 FAStT500 RAID Controller
49