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Introduction

When you deploy a virtual machine selecting High IO on the ITS Private Cloud Portal or the option --high-io in the VSS Command Line Interface, the virtual machine will be created with the VMware Paravirtual SCSI Controller, which will provide higher throughput and lower  CPU utilization - according to VMware:

PVSCSI ParavirtualSCSI adapters are high-performance storage adapters that can result in greater throughput and lower CPU utilization. PVSCSI adapters are best for environments, especially SAN environments, where hardware or applications drive a very high amount of I/O throughput. The VMware PVSCSI adapter driver is also compatible with the Windows Storport storage driver. PVSCSI adapters are not suitable for DAS environments. VMware Paravirtual SCSI adapters are high-performance storage adapters that can result in greater throughput and lower CPU utilization.

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1. Execute the following command to power off the virtual machine:

   Code Block
   vss-cli compute vm set --wait VM-NAME state -c off id : 18551 status : IN_PROGRESS task_id : 842eddab-5682-40b3-8d34-387838362bae message : Request has been accepted for processing ⏳ Waiting for request 18551 to complete... 🎉 Request 18551 completed successfully: warnings : New state is poweredOff errors :

2. Create a new CD/DVD unit backed by the VMware Tools ISO image (windows.iso)

   Code Block
   vss-cli compute vm set --wait VM-NAME cd mk --backing windows.isotools id : 18552 status : IN_PROGRESS task_id : 2eabee34-54b7-4738-987e-089362e03414 message : Request has been accepted for processing ⏳ Waiting for request 18552 to complete... 🎉 Request 18552 completed successfully: warnings : CD/DVD drive 2 ([] /vmimages/tools-isoimages/windows.iso) -> IDE 0:1 created errors :

   
   

3. Execute the following command to power ON the virtual machine:

   Code Block
   vss-cli compute vm set --wait VM-NAME state -c on id : 18553 status : IN_PROGRESS task_id : 842eddab-5682-40b3-8d34-387838362bae message : Request has been accepted for processing ⏳ Waiting for request 18551 to complete... 🎉 Request 18553 completed successfully: warnings : New state is poweredOn errors :

   
   

4. Launch the Console, proceed with the Windows install and load the drivers as follows:

5. Once the driver loads properly, you can proceed with the install.

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