
Chapter 8 Upgrade of XSCF Firmware and Maintenance 8-9
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
M8000/M9000 servers), or when in the M4000/M5000 servers, or when a Motherboard unit
is replaced (an XSCF Unit is replaced) in the M3000 server, 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, you have only to connect to the XSCF Unit on the
active side and update the firmware. The firmware upgrade is performed first on the XSCF
Unit on the standby side and then on the active side automatically. 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
Section 8.1.10, “Firmware Update Procedure” on page 8-10
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 the hardware such as Motherboard unit, CPU/Memory
Board unit, CPU module or XSCF Unit, the firmware update must be performed by using the
XCP data which supporting the new hardware function.
See the latest version of the Product Notes for your server, for specific information about
minimum softwares and firmware requirements, when new hardware is supported.
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.
Making Versions Agree With Each Other
XSCF automatically sets firmware versions to match each other as follows:
■ When power to a domain is turned on, the versions on the system boards in the domain
are automatically set to match each other.
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