Amazon EBS Update – New Elastic Volumes Change Everything

New Elastic Volumes
Today we are launching a new EBS feature we call Elastic Volumes and making it available for all current-generation EBS volumes attached to current-generation EC2 instances. You can now increase volume size, adjust performance, or change the volume type while the volume is in use. You can continue to use your application while the change takes effect.

This new feature will greatly simplify (or even eliminate) many of your planning, tuning, and space management chores. Instead of a traditional provisioning cycle that can take weeks or months, you can make changes to your storage infrastructure instantaneously, with a simple API call.

You can address the following scenarios (and many more that you can come up with on your own) using Elastic Volumes:

Changing Workloads – You set up your infrastructure in a rush and used the General Purpose SSD volumes for your block storage. After gaining some experience you figure out that the Throughput Optimized volumes are a better fit, and simply change the type of the volume.

Spiking Demand – You are running a relational database on a Provisioned IOPS volume that is set to handle a moderate amount of traffic during the month, with a 10x spike in traffic  during the final three days of each month due to month-end processing.  You can use Elastic Volumes to dial up the provisioning in order to handle the spike, and then dial it down afterward.

Increasing Storage – You provisioned a volume for 100 GiB and an alarm goes off indicating that it is now at 90% of capacity. You increase the size of the volume and expand the file system to match, with no downtime, and in a fully automated fashion.

https://aws.amazon.com/blogs/aws/amazon-ebs-update-new-elastic-volumes-change-everything/

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