dr(7d)								      Devices								    dr(7d)

NAME

       dr, drmach, ngdr, ngdrmach - Sun Enterprise 10000  dynamic reconfiguration driver

SYNOPSIS

       dr

       drmach

       ngdr

       ngdrmach

DESCRIPTION

       The  dynamic reconfiguration (DR) driver consists of a platform-independent driver and a platform-specific module. The DR driver uses stan-
       dard features of the Solaris operating environment whenever possible to control DR operations and calls the  platform  specific	module	as
       needed. The DR driver creates minor nodes in the file system that serve as attachment points for DR operations.

       The  DR	driver provides a pseudo-driver interface to sequence attach and detach operations on system boards using file system entry points
       referred to as "attachment points." The attachment point form depends on the platform.

   Sun Enterprise 10000 Server
       On the Sun Enterprise 10000 server, the DR driver consists of a platform-independent driver (ngdr) and a  platform-specific  module  (ngdr-
       mach).

       The  domain  configuration server (DCS) accepts DR requests from the system services processor (SSP) and uses the libcfgadm(3LIB) interface
       to initiate the DR operation. After the operation is performed, the results are returned to the SSP. For more information about the DCS	on
       the Sun Enterprise 10000, refer to the dcs(1M) man page and the Sun Enterprise 10000 Dynamic Reconfiguration User Guide.

       The DR driver creates physical attachment points for system board slots that takes the following form:

	 /devices/pseudo/ngdr@0:SBx

       Where x represents the slot number (0 to 15) for a particular board.

       The  cfgadm_sbd(1M)  plugin  creates  dynamic  attachment  points that refer to components on system boards, including CPUs, memory, or I/O
       devices. Refer to the cfgadm_sbd(1M) man page for more details.

SEE ALSO

       cfgadm_sbd(1M), ioctl(2), libcfgadm(3LIB)

       Sun Enterprise 10000 Dynamic Reconfiguration User Guide

SunOS 5.11							    29 Sep 2003 							    dr(7d)