Configuring virtual SCSI on the Virtual I/O Server

Provisioning virtual disk resources occurs on the Virtual I/O Server. Physical disks owned by the Virtual I/O Server can either be exported and assigned to a client logical partition as a whole or can be partitioned into parts, such as logical volumes or files. These logical volumes and files can be exported as virtual disks to one or more client logical partitions. Therefore, by using virtual SCSI, you can share adapters as well as disk devices.

To make a physical volume, logical volume, or file available to a client logical partition requires that it be assigned to a virtual SCSI server adapter on the Virtual I/O Server. The SCSI client adapter is linked to a particular virtual SCSI server adapter in the Virtual I/O Server logical partition. The client logical partition accesses its assigned disks through the virtual SCSI client adapter. The Virtual I/O Server client adapter sees standard SCSI devices and LUNs through this virtual adapter. Assigning disk resources to a SCSI server adapter in the Virtual I/O Server effectively allocates resources to a SCSI client adapter in the client logical partition.

For information about SCSI devices that you can use, see the Fix Central website.