EC2: Restore an Instance (Instant restore)
Who can use this feature
Anyone with these permissions: Restore resources
This article explains how to restore an EC2 instance using instant restore.
Instant restore makes the instance available in minutes instead of hours by serving data on demand while volumes hydrate in the background. For the standard restore method that fully restores all volumes before the instance becomes available, see EC2: Restore an Instance.
Restore the instance with instant restore
Before you start
Before you restore an EC2 instance with instant restore, make sure:
- A restore account has been connected to your Eon account.
The AWS restore account meets these requirements:
- The restore account has a KMS key that grants access to
EonRestoreAccountRoleandEonRestoreNodeRole. - The restore account has a VPC and subnet that meet restore server connectivity requirements. By default, Eon uses the default VPC and subnet, but you can customize the restore server connectivity if needed.
- The restore account has a KMS key that grants access to
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The source EC2 instance uses x86_64 architecture. Instant restore doesn’t support arm64 (Graviton) instances.
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The source EC2 instance has 24 or fewer attached volumes.
Find the snapshot you want to restore
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In your inventory, select the EC2 resource you want to restore. The Resource Details drawer opens.
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Click the Eon snapshots tab. You’ll see a calendar view with colored dots on the days when snapshots were taken. There can be more than one snapshot per day.
When you click a day, a list of Eon snapshots taken that day is displayed below the calendar.
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Expand the snapshot you want to restore. Click Instance, and then click Restore. The Restore EC2 Instance wizard opens.
Choose the restore account and enable instant restore
In the Restore EC2 wizard, you’re taken through a three-step process. The first step is to choose a restore account and configure instant restore.
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Choose the cloud account you want to restore the instance in.
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Turn Use instant restore on.
When instant restore is enabled, the instance restores to the same region as your vault. Region selection isn’t available because instant restore requires the vault and restored instance to be in the same region.
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Click Next.
Set the instance details
In the Instance configuration step, you’ll set the instance details.
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Choose a Subnet to deploy the restored instance to.
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Choose the Instance type. For information on available options, see Amazon EC2 Instance types from AWS.
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Optionally, select a Security group and Instance profile to apply to the restored instance.
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If you want to retain the tags that were present when the snapshot was taken, turn Keep original tags on. Otherwise, turn Keep original tags off.
In both cases, the new instance is tagged with
eon:restore=true. Tags with theeon:prefix aren’t included in the original tags because Eon uses this prefix for internal operations. -
Click Next.
Set details for the attached volumes
In this step of the wizard, you’ll set encryption, volume settings, and tags for the volumes attached to the instance at the time the snapshot was taken. Expand individual volumes to show volume-specific settings.
Encryption
You can encrypt all volumes with the same key, or you set each volume’s key separate from the other volumes. If you choose to encrypt each volume separately, turn off Encrypt all volumes with the same key. Encryption settings are then displayed for each volume.
You can either select an existing key or create a key and paste an ARN.
Volume settings
For each volume, you can keep the original volume settings, or you can customize the drive’s type, size, IOPS, and throughput.
Tags
Each volume has its own tags, independent of the instance-level tags in the previous step. If you want to retain the tags that were present when the snapshot was taken, turn Keep original tags on. Otherwise, turn Keep original tags off.
In both cases, the new volume is tagged with eon:restore=true.
Tags with the eon: prefix aren’t included in the original tags because Eon uses this prefix for internal operations.
Start the restore job
Click Restore to start the asynchronous restore job.
You can monitor the restore job on the Restore jobs tab in the Jobs page.
The instance becomes available quickly while data continues loading in the background. Once the restore job completes and all data is hydrated, the instance transitions to a standard EC2 instance in your account after the next restart.