Hi SantoshKumar36,
Thank you so much for your answer. So we just need to take a look on Bus Number and Target ID only (we don't care the LUN, is that correct?).
I also found some script to spit out the Location (port, bus, scsi target id, lun id), size (in GB) and Device ID (also known as disk number in the windows gui) into a file as mention on http://www.networksydney.com.au/?p=122
Get-WmiObject Win32_DiskDrive | select-object DeviceID,{$_.size/1024/1024/1024},scsiport,scsibus,scsitargetid,scsilogicalunit | out-file -FilePath c:\output.txt
Thanks and regards,
Wiehan