Booting The Server From The Service Partition; Console Redirection; Operation - Intel SR870BN4 - Server Platform - 0 MB RAM Product Manual

Booting the Server from the Service Partition

The service partition contains utilities and diagnostics. To run these utilities or diagnostics, the user
needs to boot the server from the service partition. The user can reboot a managed server from the
service partition one of two ways: locally, or remotely. When the user reboots the server to the
service partition remotely, the following can be done:
Run EFI shell commands on the server
Run a program from the service partition
Run diagnostics specific to the server
Run the SMU to configure the server for Server Management
Locally
Follow these steps to locally boot the server to the service partition:
1. Restart the managed server.
2. Monitor the boot process and press 'F2' to enter BIOS setup. Arrow over to the "System
Management" menu, and select "Enabled" for the "Service Boot" option. Hit the <F10> to
save the setting and exit out of the BIOS setup and the system automatically reboots to the
Service Partition.

Console Redirection

The BIOS supports redirection of both video and keyboard via serial link. This section details the
serial redirection scheme. For redirection over LAN (Serial over LAN or SOL), please refer to the
ISM Users Guide.
When console redirection is enabled, local (host server) keyboard input and video output are passed
both to the local keyboard and video connections, and to the remote console via the serial link.
Keyboard inputs from both sources are considered valid and video is displayed to both outputs.
Optionally, the system can be operated without a host keyboard or monitor attached to the system
and run entirely via the remote console. Setup and any other text-based utilities can be accessed via
console redirection. Note that serial redirection uses PC-ANSI and the UART settings assume
1 stop bit.

Operation

When redirecting through a modem (as opposed to a null modem cable), the modem needs to be
configured with the following:
Auto-answer (for example, ATS0=2, to answer after two rings).
Modem reaction to DTR set to return to command state (e.g., AT&D1).
Failure to provide item #2 results in the modem either dropping the link when the server reboots (as
in AT&D0) or becoming unresponsive to server baud rate changes (as in AT&D2).
The Setup/EMP option for handshaking must be set to CTS/RTS + CD for optimum performance.
The CD refers to carrier detect. If EMP is sharing the COM port with serial redirection, the
handshaking must be set to CTS/RTS+ CD. In selecting this form of handshaking, the server is
prevented from sending video updates to a modem that is not connected to a remote modem. If this
is not selected, video update data being sent to the modem inhibits many modems from answering
142 Intel® SR870BN4 Server System Product Guide