User`s guide

L1 Controller Commands
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nia and nib
Use the nia and nib targeting commands to send a command to the brick attached on
the local NI A port or NI B port, respectively. For more information, see “select” on
page 87.
Used on C-bricks with IP41 processors and on SGI Origin 3900 systems.
nmi
Use the nmi command to issue a non-maskable interrupt (NMI). For systems that include
a C-brick, the nmi command is valid only for the C-brick.
After the L1 system controller receives an nmi command, it displays “NMI...” on the
front panel display and asserts the NMI signal in I/O expander B_0100001x. If no errors
occur while the system controller issues the NMI, it displays “NMI done” on the front
panel display (see Example 3-43 and Figure 3-1). If an error occurs, the system controller
displays “NMI Fail” on the front panel display.
Example 3-43 nmi Command Output
001c07-L1>nmi
001c07-L1>
Figure 3-1 Example of
nmi Front Panel Display Output
Used on a C-brick or on server bricks performing the compute function. Note that, if a
C-brick is present, this command is valid only for the C-brick.