Fujitsu SPARC Enterprise M4000 Features Manual page 77

Note – In a midrange server, you cannot use DR commands to replace a system
board. Instead, turn off the power of all domains, and then replace the target system
board.
To replace a system board in a domain, first delete the target system board from the
domain by using the deleteboard(8) command to make the PSB replaceable. Next,
replace the PSB with a new one, and then add the target system board to the domain.
For details of the conditions and actions for executing the deleteboard(8)
command, see Section 3.1.7, "Deleting a System Board" on page 3-17. For details of
the conditions and actions for executing the addboard(8) command, see
Section 3.1.6, "Adding a System Board" on page 3-15.
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
previous status. Identify the cause of failure based on the error messages output by
the commands and Oracle 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.
Chapter 3 DR User Interface 3-23