Sun Microsystems Fire V240, Руководство администратора

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10 Sun Fire V210 and V240 Servers Administration Guide • April 2003
For information on DVD-ROM drive installation, see “Removing And Replacing The
DVD-ROM Drive” on page 32.
System Configuration Card (SCC)
The system configuration card is housed in a slot behind the front bezel, next to the
On/Standby switch (see
FIGURE 1-4
). The card contains unique network identity
information, including the MAC address and hostid (known as the idprom), and the
OpenBoot™ PROM configuration (also known as nvram).
The server attempts to access the SCC while booting.
■
If a properly formatted card is not present in the reader, the system will not boot.
■
If the content of the nvram section is invalid, the system will be initialized with
its default nvram configuration.
■
If the content of the idprom section is invalid, OBP displays a warning message
and the system will not auto-boot Solaris. However, you can boot the system from
the
ok
prompt using the
boot
command.
It is therefore essential that you store the SCC safely if you have to remove it from
the server, and replace it before restarting the system.
For more information, see “Swapping the System Configuration Card Between
Servers” on page 25.
TABLE 1-6
OBP Configuration Parameters Stored On The System Configuration Card
Parameter Default Description
diag-passes 1
Defines the number of times self-test
method(s) are performed
loca-mac-address? true
If
true
, network drivers use their own
MAC address, not the server’s
fcode-debug? false
If
true
, include name fields for plug-in
device FCodes
ttyb-rts-dtr-off true
If
true
, operating system does not assert
ttyb and RTS and DTR
ttyb-ignore-cd false
If
true
, operating system ignores carrier-
detect on ttyb
ttya-rts-dtr-off true
ttya-ignore-cd
If
true
, operating system ignores carrier-
detect on ttya