To add external disk
Navigate to System > Settings. On successfully preparing the system to support external disk, the Settings page will display a message to add external disk.
Navigate to System > Shutdown. Click Shutdown. On prompting for confirmation, click OK.
Bring up the Hyper-V Manager, select the Analytics HF3 instance, right-click and click Settings.
Navigate to SCSI Controller > Hard Drive.
Click New under Virtual hard disk.
In the Before You Begin page, click Next.
In Choose Disk Format page, select VHDX and click Next.
In the Choose Disk Type page, select Fixed size and click Next.
Specify Name and Location of the external disk and click Next.
In the Configure Disk page, enter the Size of the external disk and click Next.
In Summary page, review the configuration of the new external disk and click Finish.
This process will take some time to complete.
Click OK.
Double click on the Analytics instance to launch the Management Console.
Follow steps 2 to 5 under Configuring On-Premises Analytics on Hyper-V.
Login to the Analytics UI using the IPV4 address, username and password.
Navigate to System > Status. Verify that the added storage is displayed in Available Disk Space on Data Partition.