Hitachi Compute Blade 2000, User Manual

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Log
ical
par
titio
ni
ng man
age
r

Therefore, if guest memory dump is started in the target LPAR during job
processing, all the logical CPUs of the target LPAR stop, and the ongoing job
stops accordingly. This is equivalent to a breakdown of the target LPAR that will
occur when guest memory dump of the LPAR is started during job processing. For
this reason, do not perform guest memory dump to a working LPAR.

If “Deactivate” operation, “Reactivate” operation or logical server movement
operation is performed to the target LPAR during guest memory dump, the
operation takes precedence and the guest memory data is not retained. Therefore,
guest memory dump can no longer be continued and the guest memory dump is
cancelled. When guest memory dump is in progress, do not perform “Deactivate”
operation, “Reactivate” operation, or logical server movement operation to the
target LPAR.

LPARs other than the target LPAR continue to work after guest memory dump is
started, but those that use the LPAR manager management NIC as shared NIC
might be affected as its network performance degrades.

If Force Recovery is performed on the System Service State screen of the LPAR
manager screen during guest memory dump, the memory dump operation is
cancelled.

If Update System Config is performed with the F10 key on the System
Configuration screen of the LPAR manager screen during guest memory dump,
the memory dump operation is cancelled.

If the processing to automatically stop all logical CPUs of the target LPAR fails at
the beginning of guest memory dump, the memory dump operation is cancelled
and the target LPAR is deactivated forcibly. If this deactivation fails, the target
LPAR is blocked. When this state occurs, contact the maintenance personnel.

If an unrecoverable error occurs during guest memory dump in the LPAR
manager machine that performs guest memory dump, the memory dump
operation is cancelled. When this state occurs, contact the maintenance
personnel.

If an LPAR manager Assist error occurs during guest memory dump, the memory
dump operation might be cancelled. When this state occurs, contact the
maintenance personnel.

If a communication error occurs in the network between LPAR manager machine
and external FTP server during guest memory dump, the memory dump
operation is cancelled. When this state occurs, check the network configuration
between LPAR manager machine and external FTP server. If the problem is still
not solved, check whether the FTP software program of the external FTP server is
running correctly. If the problem still remains, contact the reseller from which you
purchased this equipment or consult maintenance personnel.

When guest memory dump processing and guest OS dump processing by the
Dump operation on the Front Panel screen are performed simultaneously to one
LPAR, all the logical CPUs of the LPAR stop due to guest memory dump and the
guest OS processing stops accordingly. Therefore, the guest OS dump operation
on the Front Panel screen is disabled, but the guest memory dump is enabled.
Remove this precaution with the following operational procedure:
1 When you find an abnormal operation of the guest OS and dump the guest
memory data, perform guest OS dump first by the Dump operation on the
Front Panel screen
2 If this guest OS dump operation fails, perform the guest memory dump using
the guest memory dump function.