is diagnostic by illuminating an LED that appears as a decimal point between the
display numbers. The diagnostic LED tuns off when the numeric display shows the
storage subsystem enclosure ID. The numeric display shows various diagnostic
codes as the controllers perform the startup process after each power cycle or
reset. After diagnostics are complete, the current storage subsystem enclosure ID is
displayed.
Diagnostic codes in the form of Lx, where x is a hexadecimal digit, indicate
controller state information. In general, these codes are displayed only when the
controller is in a non-operational state. The controller might be non-operational due
to a configuration problem (such as mismatched controller types), or it might be
non-operational due to hardware faults. If the controller is non-operational due to
system configuration, the controller Needs Attention LED is off. If the controller is
non-operational due to a hardware fault, the controller Needs Attention LED is on.
Definitions for Lx diagnostic codes are listed in Table 49.
Table 49. Numeric display diagnostic codes
Value Controller State Description
Storage Manager
View
L0 Suspend Mismatched controller
types
Needs Attention
condition for board
type mismatch
L1 Suspend Missing
interconnect-battery
unit
Needs Attention
condition for missing
interconnect-battery
unit
L2 Suspend Persistent memory
errors
Needs Attention
condition for offline
controller
L3 Suspend Persistent hardware
errors
Needs Attention
condition for offline
controller
L4 Suspend Persistent data
protection errors
Needs Attention
condition for offline
controller
L5 Offline The alternate
controller has
incompatible firmware
but automatic
controller firmware
synchronization (ACS)
cannot be performed
Needs Attention
condition for offline
controller
L6 Suspend Unsupported host
card
L7 Suspend/Offline Controller with
different controller
submodel ID inserted
Needs Attention for
offline controller
L8 Offline Unsupported memory
is present or memory
is not populated in
the correct memory
slots
Need Attention
because the controller
is in offline/failed state
L9 Suspend Link speed mismatch
Chapter 4. Operating the storage subsystem 151
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