Component
Seven-Segment Display Used in this Controller
State
Code
1
Power-on
Diagnostics
Suspended
Operational
Category delimiter (--)
After (--), a "CF" (for Component Failure) is
displayed, followed by one of the codes
specified above.
The separator
between category-
detail code pairs is
used when more
than one category
detail code pair
exists in the
sequence.
End-of-sequence delimiter
Appears as a blank space. (No codes appear,
and the Diagnostic LED is off.)
The end-of-
sequence delimiter
is automatically
inserted by the
hardware at the end
of a code sequence.
Note:
1
A two-digit code that starts a dynamic display sequence.
2
A two-digit code that follows the category code with more specific information.
3
The plus (+) sign indicates that a two-digit code appears with the Diagnostic LED on.
Things to know - Lock-down codes
Use the following table to determine the diagnostic lock-down code definitions on the seven-segment
display in the controller canister. In general, these diagnostics display only when the controller is in a
non-operational state. The controller can be in a non-operational state as a result of a configuration
problem (such as mismatched controller types) or as a result of a hardware fault. If the amber
Controller Service Action Required LED is on, the non-operational state is the result of a hardware
fault.
Table 36: Supported diagnostic lock down codes on the seven-segment display
Diagnostic Code
Description
– –
The firmware is booting.
L0
The controller types are mismatched, which result in a suspended
controller state.
L2
A persistent memory error has occurred, which results in a suspended
controller state.
L3
A persistent hardware error has occurred, which results in a suspended
controller state.
L4
A persistent data protection error has occurred, which results in a
suspended controller state.
L5
An auto-code synchronization (ACS) failure has been detected, which
results in a suspended controller state.
Step 10 - Turning on the power and checking for problems in a controller-drive tray configuration | 129
Summary of Contents for E2760
Page 2: ......
