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SCSI Devices

SCSI support is visible to a guest operating system running in a virtual machine in two ways:

• Through a host bus adapter that provides an interface to a virtual SCSI bus
• Through a set of virtual SCSI devices that reside on SCSI bus

The SCSI support in VMware ESX Server implements a BusLogic BT-958™ device as the host bus adapter.

The BusLogic adapter that VMware ESX Server implements was selected because its design lends itself to efficient support in the virtual machine and because device driver support is present in all supported guest operating systems.

There is one known problem with SCSI support. The BusLogic BTFDISK utility does not work correctly. Use the normal FDISK utility to partition SCSI virtual disks (however, be aware that it works only on units 0 and 1).

Related topics:

• Configuring a SCSI device

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