Disabling Faulty Components Using Automatic System Recovery - Fujitsu SPARC Enterprise T5440 Service Manual

Disabling Faulty Components Using Automatic
System Recovery
You can use the Automatic System Recovery (ASR) feature to configure the server to
automatically disable failed components until they can be replaced. The following
components are managed by the ASR feature:
UltraSPARC T2 Plus processor strands
■
Memory FB-DIMMs
■
I/O subsystem
■
The database that contains the list of disabled components is referred to as the ASR
blacklist (asr-db).
In most cases, POST automatically disables a faulty component. After the cause of the
fault is repaired (FRU replacement, loose connector reseated, and so on), you might
need to remove the component from the ASR blacklist.
Note – For instructions on enabling or disabling ASR, see the SPARC Enterprise
T5440 Server Administration Guide.
The ASR commands
manually add or remove components (asrkeys) from the ASR blacklist. You run
these commands from the ILOM -> prompt.
TABLE:
Command
show components
set asrkey component_state=
Enabled
set asrkey component_state=
Disabled
Note – The asrkeys vary from system to system, depending on how many cores and
memory are present. Use the show components command to see the asrkeys on a
given system.
56 SPARC Enterprise T5440 Server Service Manual • June 2011
(TABLE: ASR Commands on page
ASR Commands
56) enable you to view and
Description
Displays system components and their current state.
Removes a component from the asr-db blacklist,
where asrkey is the component to enable.
Adds a component to the asr-db blacklist, where
asrkey is the component to disable.