Hardware Memory Dump - Hitachi Compute Blade 2000 User Manual

Hardware memory dump

Hardware memory dump allows you to collect snapshots from the main memory, CPU
registers, and PCI configuration headers without using dump functionalities of operating
systems. Correcting dump images is started manually by users. Users can specify a storage
device to store collected dump images.
This feature is disabled by default. Users should enable this feature before collecting dump
images.
When hardware memory dump is enabled, EFI occupies
about 400 MB of main memory.
When hardware memory dump is enabled, EFI

occupies about 400 MB more of main memory than
usual (disabled).
This feature is available with X57A1, X57A2,

X55A1(*1), X55A2, X55S3/X55R3(*2), and X55R4
models.
(*1): X55A1 model needs to have EFI version 03-
xx/04-xx applied.
(*2): X55S3/X55R3 models need to have EFI version
09-32/10-32 or later applied.
You can usually use this feature only on Redhat

Enterprise Linux 5.4 or later without using KVM
(Kernel-based Virtual Machine).. If asked to collect
hardware memory dump by your reseller, however,
you can use the feature on other OSs. On VMware,
the feature is available only at VMware startup, when
Loading VMware xxxx is displayed or earlier.
When tboot package is installed, the feature will not

work. Change the setting value to the one described
in the Hitachi Compute Blade 2000 Software Guide.
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