AWSNVMe Driver Package
=======================
AWSNVMe Package has AWSNVMe Driver and ebsnvme-id tool.
AWSNVMe driver accelerates data transfer on Amazon EC2 Windows instances that
use the latest generation of EC2 storage technology. The driver is highly
optimized for the most demanding I/O workloads and features low latency I/O
processing.
ebsnvme-id tool maps the NVMe device disk number to an EBS volume ID and device name.

Installation
============
If you are installing the driver for the first time in order to migrate to an
instance type with NVMe storage please see the notes section below for
important information.

To install the driver run the install.ps1 script. The script accepts four
optional parameters documented below:

-NoReboot:
    Do not reboot the instance if necessary to complete driver install or
    uninstall. Instead emit message advising if a reboot is necessary.

-RemovePreviousVersions:
    Remove previous versions of the driver found on the instance.

-Force:
    Force the removal of different driver versions found even if the instance
    may not be capable of booting on an NVMe boot device afterwards.

-EnableSCSIPersistentReservations:
    Enables driver to report bus type as SAS. This is required to setup failover clusters with shared EBS storage.
    This parameter is only supported for Windows server 2016 or higher.

Verify the installation
=======================
On EC2 instances with NVMe storage the driver version in use can be verified by
going to the "Device Manager" and expanding "Storage Controllers." If device
manager indicates that a reboot is required to complete the installation of the
driver it is important to reboot the instance for the driver to become active.

Notes
=====
If you are installing this driver for the first time in order to migrate to a
newer instance type with an NVMe boot volume it is important to follow the
instructions provided in the document link below to ensure the instance will be
bootable:
https://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/migrating-latest-types.html

Link
====
https://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/aws-nvme-drivers.html