Fujitsu Siemens Computers SPARC Enterprise M8000 - Manual (Page 85)

Chapter 3 DR User Interface 3-23
Note – (Note 1) Before replacing a system board, you must know the division type
of the replacement-target PSB and the configurations and operation status of all
domains to which all XSBs on the PSB belong.
If the division type of the replacement-target PSB is Quad-XSB and the XSBs on the
replacement-target PSB belong to multiple domains, you must consult with all
administrators of the relevant domains in advance to adequately adjust the method
of replacing the system board.
If the division type of the replacement-target PSB is Uni-XSB, its replacement does
not affect any other domains. However, prior adjustment may be required when the
replacement-target system board is used as a floating board for multiple domains or
hardware replacement work may affect other domains
Note – (Note 2) If the DR processing executed by the deleteboard(8) or
addboard (8) commands fails, the target system board cannot be restored its the
previous status. Identify the cause of failure based on the error messages output by
the commands and Solaris OS messages, and then take appropriate corrective action.
Note that some errors require the domain to be rebooted.
Note – (Note 3) If a system board is forcibly deleted from a domain by the
deleteboard (8) command with the -f option specified, a serious problem may
occur in a process bound to the CPU or accessing an I/O device. For this reason, you
should avoid using the -f option in normal DR operations. If you must use the
deleteboard
(8) command with the -f option specified, be sure to check the status
of the domain and application processes before and after execution.
Note – (Note 4) To execute the addboard(8) command to add a system board by
DR, the system board must already be registered in DCL. Use the showdcl(8)
command to check whether a system board is registered in the DCL. To register a
system board in the DCL, use the setdcl(8) command.
To replace hardware, you must set the system board to the state where it is assigned
to the domain or to the state where it is placed in the system board pool by using the
deleteboard
(8) command.