Dynamic Reconfiguration User's Guide 2.5.1

1.2.3 Notes on DR operation

• This restriction is only applied to Solaris 8 OS 6/00 system. If the /etc/system file contains the line "set ftrace_atboot = 1", please comment out this line to disable this configuration. Otherwise, DR attach/detach operation is forced to fail. Please refer to section 6.1.3.1 "Warning Error Message" for more details. On Solaris 8 OS 7/01 or later versions, this configuration doesn't have to be disabled to make DR attach/detach operation proceed.
• This restriction is only applied to Solaris 8 OS system with 108528-19 or 108528-20 and Solaris 9 OS system with 112233-05. After the following line is added into /etc/system file, the system needs to be rebooted.
  set pg_contig_disable = 1
• During DR detach operation, OBP (Open Boot Prom) device tree should not be accessed through /dev/openprom device by any command such as "prtconf -p" option.
  If OBP device tree is accessed during DR detach operation, the message "nodeid 0x**.. not found" may be shown but it doesn't harm to the DR detach operation.
• During DR detach operation, the DR operation might be failed with the following error messages. This occurs due to a conflict between DR operation and open operation of raw device. In this case, please re-execute the DR operation.

/opt/FJSVhwr/sbin/drc -disconnect sbXX-X

XXX XX XX:XX:XX Start disconnecting sbXX-X (board number=X)

......

XXX XX XX:XX:XX Releasing the I/O. (XX/XX)

XXX XX XX:XX:XX Fail to execute cfgadm unconfigure I/O Device=pcipsyX:CXMXX-PCI#slotXX.

......

drc: dr module terminated abnormally(2).

• System's run level should be multi-user to operate DR.
• During DR operations, the following system reconfiguration commands, psradm (1M), devfsadm (1M) or cfgadm (1M) must not be performed. That might cause system down. Please refer to "PCI Hot Plug User's Guide" for details regarding cfgadm (1M) command.