Fujitsu M10-4/M10-4S: XSCF does not Identify M10 PCI Expansion Unit

Asset ID:	1-72-2142944.1
Update Date:	2016-05-26
Keywords:

Solution Type Problem Resolution Sure

Solution 2142944.1 : Fujitsu M10-4/M10-4S: XSCF does not Identify M10 PCI Expansion Unit

Applies to:

Fujitsu M10 PCI Expansion Unit - Version All Versions and later
Fujitsu M10-4 - Version All Versions and later
Fujitsu M10-4S - Version All Versions and later
Information in this document applies to any platform.

Symptoms

In some cases the XSCF does not identify the installed PCI Expansion Unit ( PCIBOX ) when the PPAR is powered on, resulting in the logical domain not booting.

Example: The XSCF does not identify the PCIBOX installed in PCI-slot#0 on the system which has 3 PCIBOXs in slot#0,#3 and #5.

XSCF> ioxadm list
PCIBOX Link
PCIBOX#2333 BB#00-PCI#03
PCIBOX#3555 BB#00-PCI#05
XSCF>

As the result of this, when the pciboxdio command is enabled on the logical domain configuration, the logical domain cannot be booted because of the factory-default configuration.

Another symptom:
When the direct I/O function (Example 1) for the missing PCIBOXs are enabled, and the logical domain configuration (Example 2) is set to something other than factory-default, the logical domain cannot boot because the configuration is changed to factory-default.

Example 1: Direct I/O function settings for the each PCIBOX can be confirmed as follows.

XSCF> showpciboxdio -a
PCI slot Direct I/O via PCIBOX
BB#00
0 enabled
1 disabled
2 disabled
3 disabled
4 disabled
5 disabled
6 disabled
7 disabled
8 disabled
9 disabled
10 disabled

Example 2: The logical domain configuration can be confirmed as follows. E.g. in the case that the logical domain configuration of PPAR ID 0 is the factory-default.

XSCF> showdomainconfig -p 0
PPAR-ID :0
Booting config
(Current) :factory-default
^^^^^^^^^ ^^^^^^^^^^^^^^^
(Next) :factory-default

Because XSCF can not identify the installed PCIBOX, ioxadm commands cannot be executed for the missing PCIBOX.

Turning on/off the LED.
Active replacement of the PSU and FAN.
Updating of the PCIBOX firmware.
Detection of the PCIBOX failure.

Cause

This problem is caused by XSCF firmware bug introduced in XCP2250.

When all the following conditions are met this problem may occur:

Fujitsu M10-4 or M10-4S, and
XCP version is 2250 or later, and
The system has three or more M10 PCI Expansion Units

Solution

Workaround:
There is no effective workaround for this issue.
When this problem occurs perform a PPAR power-off /power-on

This problem will be fixed in the next XCP. Please apply the fix once it has been released.

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