2-16
SPARC Enterprise Mx000 Servers Dynamic Reconfiguration User’s Guide • September 2007
Note –
Enable the omit-I/O option when the system board is in the system board
pool or when the system board is not connected to the domain configuration.
2.3
Conditions and Settings Using Solaris
OS
This section describes the operating conditions and settings required for DR
operations.
2.3.1
I/O and Software Requirements
As described in
Section 2.1, “System Configuration” on page 2-1
, all I/O device
drivers and software installed in a domain where DR is to be used must support DR.
The device drivers that support DR must also support the following DDI and DKI
entries:
attach
(9E): DDI_ATTACH and DDI_RESUME
detach
(9E): DDI_DETACH and DDI_SUSPEND
If a device driver that does not support DR is present, the deletion of a system board
might fail.
Even if the DDI_DETACH interface is supported, DDI_DETACH processing fails
when the relevant driver is in use. Before starting the deletion of a system board,
you must stop using all devices on the system board to be deleted.
The device drivers that do not support DR must be unloaded before a system board
is deleted. To unload a device driver, you must stop using all I/O devices controlled
by the device driver. To unload a device driver, you can use the Solaris command
modunload
(1M). Then, you can reload the driver for the remaining instances and
resume using those remaining instances after deleting the system board.
2.3.2
Settings of Kernel Cage Memory
Kernel cage memory is a function used to minimize the number of system boards to
which kernel memory is allocated. Kernel cage memory is enabled by default in the
Solaris 10 OS.
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