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Editorial Team
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Asked: 2026-06-12T03:55:31+00:00

I have purchased the Amazon EC2 m1.medium reserved instance. Now how do I go

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I have purchased the Amazon EC2 m1.medium reserved instance. Now how do I go about creating a root storage volume with 400GB capacity?

By extending the default root 30GB vol to 400GB will be resulting in an extra EBS 400GB which I do not need as the EBS will incur extra charges.

I have done some research saying that the Instance Store Volumes is ephemeral type which is not persistent.

Here’s the link ( Will moving data from EBS to ephemeral storage improve MySQL query performance? )

Any advice will be appreciated.

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1 Answer

  1. Editorial Team

    If you boot your instance off an instance store AMI then you’ll get your 400G of local instance storage. If you ever shut that instance down you’ll lose that data (reboots are ok)

    If you use an EBS base ami the root device will always be a EBS volume. If you want the ephemeral volumes to be available this must be specified when starting the instance. You can do this via the web console or by passing a BlockDeviceMapping option when using the various APIs that create instances. Data on the ephemeral volumes is still lost when the instance is shut down.

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