Once an AMI has been created and registered, it can be reused to launch multiple instances with the same configuration. Tags can be used to categorize and manage AMIs. When an AMI is no longer needed, it can be deregistered. A deregistered AMI cannot be used to launch new instances, but existing instances will remain active. AWS Account. You can get statistics, view graphs, and set alarms for your metric data.
You can also supply your own business or application metric data. See Amazon CloudWatch for more details. Auto Scaling allows you to automatically scale your Amazon EC2 capacity up or down according to conditions you define.
Auto Scaling is particularly well suited for applications that experience hourly, daily, or weekly variability in usage. See Auto Scaling for more details. Elastic Load Balancing automatically distributes incoming application traffic across multiple Amazon EC2 instances.
It enables you to achieve even greater fault tolerance in your applications, seamlessly providing the amount of load balancing capacity needed in response to incoming application traffic. Elastic Load Balancing detects unhealthy instances within a pool and automatically reroutes traffic to healthy instances until the unhealthy instances have been restored.
You can enable Elastic Load Balancing within a single Availability Zone or across multiple zones for even more consistent application performance. See Elastic Load Balancing for more details. Customers with complex computational workloads such as tightly coupled parallel processes, or with applications sensitive to network performance, can achieve the same high compute and network performance provided by custom-built infrastructure while benefiting from the elasticity, flexibility and cost advantages of Amazon EC2.
C5 instances have been specifically engineered to provide high-performance network capability and can be programmatically launched into clusters — allowing applications to get the low-latency network performance required for tightly coupled, node-to-node communication. Cluster instances also provide significantly increased throughput making them well suited for customer applications that need to perform network-intensive operations.
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The C5 come in nine different models, from the c5. These are designed for memory-intensive applications such as databases and real-time stream processing. The Z1D is a specialty instance with a 4. P3, P2, Inf1, G4, G3, and F1 accelerated computing instances provide graphics processing units GPUs or field programmable gate arrays FPGAs that are used for machine learning, high-performance computing, and other numerically intensive workloads. The D2 instances are backed by hard disk drives and offer large-volume, low-cost persistent storage with up to 48TB per instance.
In addition to selecting the right EC2 instance family and type, other resourcing considerations include:. A few patterns emerge when describing the different kinds of instances you can use in AWS. First, there are a large number of instances. Even within a single family of instances, there can be up to 18 different configurations. This makes it difficult to find the optimal instance type for a given workload.
For example, you may have a compute-intensive application, but you may not be sure if you should use a compute-optimized instance or an accelerated instance. If the application makes many floating point calculations and the code can take advantage of a GPU, an accelerated instance may be the best option.
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