Bios R0048 Does Not Support Mixed Stepping E-0 And C-0 Processors; In Windows Enterprise Server 2008* Cluster Failover Testing, It Has Been Observed That Cluster Nodes May Lose Access To The Clustered Shared Lun Drives - Intel MFSYS25V2 Specification

Enterprise Platforms and Services Division
23.

BIOS R0048 Does Not Support Mixed Stepping E-0 and C-0 Processors

Problem BIOS code specifically designed to allow support for mixed stepping
processors was not included in BIOS R0048.
Implication The use of mixed stepping E-0 and C-0 processors and BIOS R0048 may
cause errratic system behavior such as operating systems failing to load or
install.
Status This erratum may be fixed in a future BIOS release.
Workaround None.
24. In Windows Enterprise Server 2008* Cluster failover testing, it has been
observed that cluster nodes may lose access to the clustered shared LUN
drives
Problem In Windows Enterprise Server 2008* Cluster failover testing, it has been
observed that cluster nodes may lose access to the clustered shared LUN drives
if a node is power cycled. If a node which has lost shared LUN access is the
cluster resource owner for the cluster storage resources or becomes the owner,
the cluster storage resources will go into an offline state.
Implication Cluster storage resources going offline would lead to failures in any applications
which are dependent on the cluster storage. Resetting SCM1 or power cycling
the chassis will restore service.
Status Fixed in UFU V2.7
Workaround Resetting SCM1 or power cycling the chassis will restore service.
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Specification Update