Name	Description
cdrom
communications
disk
enclosure
mediaChanger
opticalDevice
printer
processor
scanner
storageArrayController
tape
unknown
worm

         <simpleType xmlns="http://www.w3.org/2001/XMLSchema" xmlns:pbm="urn:pbm" name="ScsiLunType">
            <restriction base="xsd:string">
               <enumeration value="disk"/>
               <enumeration value="tape"/>
               <enumeration value="printer"/>
               <enumeration value="processor"/>
               <enumeration value="worm"/>
               <enumeration value="cdrom"/>
               <enumeration value="scanner"/>
               <enumeration value="opticalDevice"/>
               <enumeration value="mediaChanger"/>
               <enumeration value="communications"/>
               <enumeration value="storageArrayController"/>
               <enumeration value="enclosure"/>
               <enumeration value="unknown"/>
            </restriction>
         </simpleType>

Enum - ScsiLunType(vim.host.ScsiLun.ScsiLunType)

Enum Description