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HP Integrity Virtual Machines Version 4.0 Release Notes > Chapter 8 Storage Information

Virtual SCSI (VIO) Device Limitations


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Although SCSI devices appear to a guest as Ultra320 SCSI controllers claimed by the MPT driver, this is an emulation. There are several differences from using a real device. Specifically:

  • You cannot upload or download firmware for emulated devices.

  • Although HP-UX commands such as mptutil(1M) and mptconfig(1M) do not fail when run in a guest, they do not always return the same information as they would when referencing a physical device.

  • The EFI drvcfg command does not fail when run in a guest, but it returns no useful data.

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