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The NVIDIA Tesla M60 GPU used in G3 instances requires a special NVIDIA GRID driver to enable all advanced graphics features, and 4 monitors support with resolution up to 4096x2160. You need to use an AMI with NVIDIA GRID driver pre-installed, or download and install the NVIDIA GRID driver following the AWS documentation.
The following AMIs are supported on A1 instances: Amazon Linux 2, Ubuntu 16.04.4 or newer, Red Hat Enterprise Linux (RHEL) 7.6 or newer, SUSE Linux Enterprise Server 15 or newer. Additional AMI support for Fedora, Debian, NGINX Plus are also available through community AMIs and the AWS Marketplace. EBS backed HVM AMIs launched on A1 instances require NVMe and ENA drivers installed at instance launch.
The SRD functionality will be supported on all operating systems, but please note that ENA Express monitoring metrics will be available on only the EthTool in the latest Amazon Linux AMI or by installing the ENA driver version 2.8.0 or later from GitHub, with all operating systems supporting the metrics in the future.
In order to enable this feature, you must launch an HVM AMI with the appropriate drivers. The instances listed as current generation use ENA for enhanced networking. Amazon Linux AMI includes both of these drivers by default. For AMIs that do not contain these drivers, you will need to download and install the appropriate drivers based on the instance types you plan to use. You can use Linux or Windows instructions to enable Enhanced Networking in AMIs that do not include the SR-IOV driver by default. Enhanced Networking is only supported in Amazon VPC.
Third, the NVMe interface can transfer much larger amounts of data per I/O, and in some cases may be able to support more outstanding I/O requests, compared to the Xen PV block interface. This can cause higher I/O latency if very large I/Os or a large number of I/O requests are issued to volumes designed to support throughput workloads like EBS Throughput Optimized HDD (st1) and Cold HDD (sc1) volumes. This I/O latency is normal for throughput optimized volumes in these scenarios, but may cause I/O timeouts in NVMe drivers. The I/O timeout can be adjusted in the Linux driver by specifying a larger value for the nvme_core.io_timeout kernel module parameter. 2ff7e9595c
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