VHD’s provide storage for virtual machines and are stored on physical media as .VHD files.
While creating a new virtual machine we can create VHD’s or can select existing VHD’s which we already created or used. Or we can add a VHD later and can complete the VM creation wizard.
OK. Now i want to give an additional drive or partition to this VM.
1) Create a VHD from hyper-v console.
2)Attach that VHD from Hyper-V snap-in of VM as additional hard disk from IDE controller 0 or add as second IDE controller, Then add hard drive. ( snapshot below)
3) Or we can add additional SCSI controller from hyper-v settings if IDE controller 0 and 1 are fully used. To do this click add hardware and select SCSI controller
4)Once you add you can see physical disk option. Select disk from drop down list ( this disk should be offline in disk management of hyper-v host server. Other wise we cannot see the disk in this console)
These are the two method we can assign disks to VM’ from hyper-v console of the Hyper-v server. To add any hardware VM must be shutdown. Or from SAN you can directly map the hard disks in to VM’s by using iSCSI initiator in windows.
Adding VHD’s as additional hard disks ( IDE controller)