Notes For Using Hyper-V - NEC EXPRESS5800/R320a-E4 Configuration Manual

CONFIGURATION GUIDE

Notes for using Hyper-V

Brief system interruption during synchronization process
In the synchronization process of CPU modules, a memory copy is performed to duplex memory on both
CPU modules. Most of the memory area can be copied without interrupting the system through the
so-called brownout copy method, and just a small portion requires the system to stop. However with
Hyper-V, the system cannot use the brownout copy method. Therefore, the system does not respond for a
longer period of time during the synchronization process of the CPU modules than without Hyper-V.
See the table below for the reference values of interruption during re-synchronization of CPU/IO modules in
a Hyper-V system. It is recommended that your system design take the interruption into account.
Logical Main Memory Size
4GB
9 sec
About Guest OS
Guest operating systems supported on NEC Express5800/ft series are the same as other general purpose
servers. Refer to the
Backup
When using Hyper-V on a FT server, prepare a separate server for backup in the same way as for other
general purpose servers with Hyper-V. For backup patterns, refer to each backup software company's web
site.
NEC ESMPRO Agent
For monitoring guest operating systems, NEC ESMPRO Agent for Guest OS is required. Contact your
sales representative for this software.
Active Upgrade
Teams assigned to the virtual network by Hyper-V Virtual Network Manager cannot be used in Active
Upgrade. To use Active Upgrade, at least two teams are required.
NEC Corporation
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NEC EXPRESS5800/R320a-E4 / Windows Server 2008 R2 model
12GB
29 sec
Microsoft web site for Supported Guest Operating Systems on Hyper-V.
Revision 8.0, October 2012
24GB 48GB
57 sec 113 sec
96GB
226 sec
17