FUJITSU SPARC M4000 - Manual (Page 278)

8-8 SPARC Enterprise Mx000 Servers XSCF User’s Guide • April 2008
Note – (1) Corresponds to an MBU in a midrange system. (The same is true for the
description below.) Also, when MBU is replaced, please do the replacement after
turning off the input power.
Note – (2) The replacement of the XSCF Unit and the version matching is performed
by FEs. When both XSCF Units are replaced in the systems with redundant XSCF
Units (the high-end systems), or when in a midrange system, the firmware version
cannot be automatically set to match the version of the replaced unit. Perform the
operator's update for the XCP version.
8.1.8 Firmware Update for Redundant XSCF Units
In a system with redundant XSCF Units, the firmware upgrade is performed first on
the XSCF Unit on the standby side and then on the active side. Due to resetting the
XSCF and switching the networks of the XSCF Units on the active and standby sides,
the network is disconnected at this time. Therefore, the user must log in again. For
details, see "Firmware update procedure."
In a system with redundant XSCF Units, if the system is operating with only the
active XSCF Unit, such as because of a failure, the update of all firmware is
suppressed.
8.1.9 Ensuring Proper Operation After a Firmware
Update
Supported Hardware
When an improvement is made to either of the following types of hardware, the
firmware update using the latest XCP data must be performed.
■ XSCF Unit
■ MBU or CMU
■ CPUM
Note – If data for an older version of XCP is used for the firmware update of a
system that is running, system operation cannot be guaranteed.