Automatic System Recovery (Asr); Remote System Control (Rsc) And System Service Processor (Ssp) - Sunfire V480 Administration Manual

Automatic System Recovery (ASR)

Upon a system failure, Automatic System Recovery attempts to identify and remove the failed component(s) of a system
in order to restore service as quickly as possible and, to the extent possible.
The components that can be removed from a system via ASR include:
A memory group (4 DIMMs)
When a given bank is disabled or fails POST, that bank is not considered when the memory interleaving is calculated.
In the highly unlikely event that both memory groups associated with an individual processor are disabled, the system
will still attempt to boot. The processor with failed memory groups will still be able to access all available system
memory.
A dual-processor/memory module
The failure of an individual processor will result in the removal of an entire dual-processor/memory module and the
associated memory. Consequently, no recovery is possible with a two processor system. Further, this consideration
would encourage relatively equal amounts of memory on all dual-processor/memory modules. Otherwise, the failure
of a module with a disproportionate amount of memory would significantly diminish the total system memory
capacity.

Remote System Control (RSC) and System Service Processor (SSP)

The Sun Fire TM V480 Server features a System Service Processor (SSP) and Remote System Control (RSC) software,
enabling complete console access, monitoring and control from remote locations via any client device on the network, a
serial line or modem.
The System Service Processor is a fully independent processor card that resides on the system I/O board. The SSP allows
administrators to remotely query the status of the system, diagnose faults and initiate a system power on/off or reboot.
Because it operates independently from the server, the SSP can constantly monitor a variety of conditions perform the
following:
View the server's front panel including key switch position and LEDs
Run diagnostic tests and configure the server remotely
Monitor and report errors including output from power-on self-test (POST) and OpenBoot Diagnostics
Reboot, reset, power-on and power-off on demand
Notify of server problems and enter detailed log entries of RSC events
The RSC card plugs into a dedicated slot on the system I/O board and includes integrated modem, serial and Ethernet
interfaces; it does not occupy a PCI slot. The RSC firmware runs independently from the host. The RSC module uses
standby power drawn from the host system. The RSC module is powered by an independent battery which operates for up
to 30 minutes after a complete power failure.
The RSC hardware and software continue to run even when the server is off-line. It can send notification of hardware
failures or other events to administrators via pager or e-mail.
The card provides three ports that are accessible through an opening in the rear panel of the system:
10 Mbps Ethernet port via an RJ45 unshielded twisted pair Ethernet (UTP) connector
56 Kbps modem port via an RJ11 connector
EIA-232D serial port via an RJ45 connector
TM
Sun Fire V480 Server
Just the Facts
Sun Proprietary and Confidential - Internal Use Only
Sept. 26, 2002
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