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Paws::ComputeOptimizer::InstanceRecommendationOption(3) User Contributed Perl Documentation Paws::ComputeOptimizer::InstanceRecommendationOption(3)

Paws::ComputeOptimizer::InstanceRecommendationOption

This class represents one of two things:

Arguments in a call to a service

Use the attributes of this class as arguments to methods. You shouldn't make instances of this class. Each attribute should be used as a named argument in the calls that expect this type of object.

As an example, if Att1 is expected to be a Paws::ComputeOptimizer::InstanceRecommendationOption object:

  $service_obj->Method(Att1 => { InstanceType => $value, ..., Rank => $value  });

Results returned from an API call

Use accessors for each attribute. If Att1 is expected to be an Paws::ComputeOptimizer::InstanceRecommendationOption object:

  $result = $service_obj->Method(...);
  $result->Att1->InstanceType

Describes a recommendation option for an Amazon EC2 instance.

The instance type of the instance recommendation.

The performance risk of the instance recommendation option.

Performance risk indicates the likelihood of the recommended instance type not meeting the resource needs of your workload. Compute Optimizer calculates an individual performance risk score for each specification of the recommended instance, including CPU, memory, EBS throughput, EBS IOPS, disk throughput, disk IOPS, network throughput, and network PPS. The performance risk of the recommended instance is calculated as the maximum performance risk score across the analyzed resource specifications.

The value ranges from 0 to 5, with 0 meaning that the recommended resource is predicted to always provide enough hardware capability. The higher the performance risk is, the more likely you should validate whether the recommendation will meet the performance requirements of your workload before migrating your resource.

Describes the configuration differences between the current instance and the recommended instance type. You should consider the configuration differences before migrating your workloads from the current instance to the recommended instance type. The Change the instance type guide for Linux (https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-instance-resize.html) and Change the instance type guide for Windows (https://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/ec2-instance-resize.html) provide general guidance for getting started with an instance migration.

Platform differences include:

  • "Hypervisor" — The hypervisor of the recommended instance type is different than that of the current instance. For example, the recommended instance type uses a Nitro hypervisor and the current instance uses a Xen hypervisor. The differences that you should consider between these hypervisors are covered in the Nitro Hypervisor (http://aws.amazon.com/ec2/faqs/#Nitro_Hypervisor) section of the Amazon EC2 frequently asked questions. For more information, see Instances built on the Nitro System (https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instance-types.html#ec2-nitro-instances) in the Amazon EC2 User Guide for Linux, or Instances built on the Nitro System (https://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/instance-types.html#ec2-nitro-instances) in the Amazon EC2 User Guide for Windows.
  • "NetworkInterface" — The network interface of the recommended instance type is different than that of the current instance. For example, the recommended instance type supports enhanced networking and the current instance might not. To enable enhanced networking for the recommended instance type, you will need to install the Elastic Network Adapter (ENA) driver or the Intel 82599 Virtual Function driver. For more information, see Networking and storage features (https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instance-types.html#instance-networking-storage) and Enhanced networking on Linux (https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/enhanced-networking.html) in the Amazon EC2 User Guide for Linux, or Networking and storage features (https://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/instance-types.html#instance-networking-storage) and Enhanced networking on Windows (https://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/enhanced-networking.html) in the Amazon EC2 User Guide for Windows.
  • "StorageInterface" — The storage interface of the recommended instance type is different than that of the current instance. For example, the recommended instance type uses an NVMe storage interface and the current instance does not. To access NVMe volumes for the recommended instance type, you will need to install or upgrade the NVMe driver. For more information, see Networking and storage features (https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instance-types.html#instance-networking-storage) and Amazon EBS and NVMe on Linux instances (https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/nvme-ebs-volumes.html) in the Amazon EC2 User Guide for Linux, or Networking and storage features (https://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/instance-types.html#instance-networking-storage) and Amazon EBS and NVMe on Windows instances (https://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/nvme-ebs-volumes.html) in the Amazon EC2 User Guide for Windows.
  • "InstanceStoreAvailability" — The recommended instance type does not support instance store volumes and the current instance does. Before migrating, you might need to back up the data on your instance store volumes if you want to preserve them. For more information, see How do I back up an instance store volume on my Amazon EC2 instance to Amazon EBS? (https://aws.amazon.com/premiumsupport/knowledge-center/back-up-instance-store-ebs/) in the AWS Premium Support Knowledge Base. For more information, see Networking and storage features (https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instance-types.html#instance-networking-storage) and Amazon EC2 instance store (https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/InstanceStorage.html) in the Amazon EC2 User Guide for Linux, or see Networking and storage features (https://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/instance-types.html#instance-networking-storage) and Amazon EC2 instance store (https://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/InstanceStorage.html) in the Amazon EC2 User Guide for Windows.
  • "VirtualizationType" — The recommended instance type uses the hardware virtual machine (HVM) virtualization type and the current instance uses the paravirtual (PV) virtualization type. For more information about the differences between these virtualization types, see Linux AMI virtualization types (https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/virtualization_types.html) in the Amazon EC2 User Guide for Linux, or Windows AMI virtualization types (https://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/windows-ami-version-history.html#virtualization-types) in the Amazon EC2 User Guide for Windows.

An array of objects that describe the projected utilization metrics of the instance recommendation option.

The "Cpu" and "Memory" metrics are the only projected utilization metrics returned. Additionally, the "Memory" metric is returned only for resources that have the unified CloudWatch agent installed on them. For more information, see Enabling Memory Utilization with the CloudWatch Agent (https://docs.aws.amazon.com/compute-optimizer/latest/ug/metrics.html#cw-agent).

The rank of the instance recommendation option.

The top recommendation option is ranked as 1.

This class forms part of Paws, describing an object used in Paws::ComputeOptimizer

The source code is located here: <https://github.com/pplu/aws-sdk-perl>

Please report bugs to: <https://github.com/pplu/aws-sdk-perl/issues>

2022-06-01 perl v5.40.2
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