Powering Off The Storage Subsystem; Turning Off The Storage Subsystem - IBM System Storage DS5020 Installation, User's, And Maintenance Manual

Table 19. Numeric display diagnostic codes (continued)
Value
LA
LB
LC
LD
LE
LF
LH
LU

Powering off the storage subsystem

The DS5020 is designed to run continuously. After you turn it on, do not turn it off.
Turn off the power only in the following situations:
v Instructions in a hardware or software procedure require that you turn off the
v An IBM technical support representative instructs you to turn off the power.
v A power outage or emergency situation occurs, see "Restoring power after an

Turning off the storage subsystem

Use the following procedure to turn off the power for the DS5020.
Attention:
Attention LEDs are on. Correct the fault before you turn off the power. Use the DS
Storage Manager client and the Needs Attention LEDs to check the overall status of
the DS5020. All LEDs should be green on the front of the storage subsystem. If
they are not, use the DS Storage Manager client to diagnose the problem. This
ensures that the DS5020 will power on correctly later.
The DS5020 is designed to run continuously. After you turn on the DS5020, do not
turn it off. Turn off the power only in the following situations:
v Instructions in a hardware or software procedure require that you turn off the
v An IBM technical support representative instructs you to turn off the power.
v A power outage or emergency situation occurs, see "Restoring power after an
power.
unexpected shutdown" on page 114.
Except in an emergency, never turn off the power if any Needs
power.
unexpected shutdown" on page 114.
Controller State
Suspended
Suspended
Suspended
Suspended
Suspended
Suspended
Suspended
Lockdown
Chapter 4. Operating the storage subsystem
Description
Reserved
Host card configuration error
Persistent cache backup
configuration error
Mixed cache memory DIMMs
Uncertified cache memory
DIMM sizes
Lockdown with limited
SYMbol support
Controller firmware mismatch
Controller is locked down due
5 consecutive incomplete
boot process (start-of-day).
111