NEC EXPRESS5800 R320A-E4 System Configuration Manual page 22

Notes for using Hyper-V
Backup
When using Hyper-V on FT server, prepare a separate server for backup. For
backup patterns, refer to each backup software company's web site.
NEC ESMPRO Agent
For monitoring guest OS, NEC ESMPRO Agent for Guest OS is required.
Active Upgrade
A team 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.
Express5800/R320a-E4, R320b-M4(Windows2008 R2 model)
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