Virtual Disk Assisngment :

Virtual Disk Assignment through Vios Server to Clinet Logical Partitions :

• Disks are presented to VIOC by creating a mapping between a physical disk or storage pool volume and the vhost adapter that is associated with the VIOC.
• Best practices configuration suggests that the connecting VIOS vhost adapter and the VIOC vscsi adapter should use the same slot number. This makes the typically complex array of virtual SCSI connections in the system much easier to comprehend.
• The mkvdev command is used to create a mapping between a physical disk and the vhost adapter.

Create a mapping of hdisk3 to the virtual host adapter vhost2.
mkvdev -vdev hdisk3 -vadapter vhost2 -dev vhd3

›››   It is called vhd3 for "WholeDisk_Client3_HDisk3". The intent of this naming convention is to relay the type of disk, where from, and who to.

Delete the virtual target device vhd3
rmvdev -vtd vhd3

Delete the above mapping by specifying the backing device hdisk3
rmvdev -vdev hdisk3