HyperV Gotchas!

The following wiki – http://social.technet.microsoft.com/wiki/contents/articles/365.aspx – lists the top gotchas when using HyperV.

  • Using Hyper-V snapshots
  • Backing up and restoring virtual machines
  • On Windows Server 2008 R2, virtual machines lose network connectivity under a heavy load
  • Hyper-V Hotfix for “0x00000101 – CLOCK_WATCHDOG_TIMEOUT” on Nehalem systems
  • On a Windows Server 2008 or 2008 R2 system that has the Hyper-V role installed, the startup time increases after backing up Hyper-V virtual machines
  • VM unable to access the network after it has been configured to use a VLAN ID
  • NIC driver issues using NIC Teaming on Broadcom NICs on Windows Server 2008 R2
  • BIOS errors enabling Hyper-V
  • Errors enabling Hyper-V
  • Creating or starting a virtual machine fails with the error: ‘General access denied error’ (0x80070005)
  • VM Export/Import permissions issues
  • NIC listed as an unknown device in device manager
  • Trying to run Hyper-V on a laptop
  • Trying to run Hyper-V on a AMD E-350 motherboard
  • Disk I/O trouble
  • Running un-needed software, such as anti-virus on the parent partition (also called virtualization server and management partition)
  • Slow system logon, sluggish keyboard and mouse
  • Misconfiguration
  • Active Directory Domain Controllers in VMs
    • Backup and restore Domain Controllers the right way
    • Beware of pending snapshot merges

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