# Configuring Amazon S3 Glacier Faster Restores

To enable Faster Restores for S3 Glacier, verify that your environment meets the prerequisites and enable faster restores in Commvault. Then you can begin running faster restores.

## Prerequisites

Before you configure faster restores, verify that your Commvault environment meets the prerequisites:

Prerequisites for Amazon S3 Faster Restores

- You must have a Commvault cloud storage location (an Amazon S3 bucket) configured with one of the following storage classes (with or without deduplication enabled):

  - Amazon S3 Glacier Flexible Retrieval
  - Amazon S3 Glacier Deep Archive
  - Amazon S3 Intelligent-Tiering with Archive Access Tier
  - Amazon S3 Intelligent-Tiering with Deep Archive Access Tier
  - Amazon S3 Intelligent-Tiering with Archive Access and Deep Archive Access Tier

- You must have a Backup plan for protection and decommissioning of workloads.

- You must have a workload configured and backed up to the configured cloud storage location.

  - For example, you might have an Amazon EC2 VM group. For this VM group, you can use powerful resource tagging rules, such as AWS Resource tags or Kubernetes Label selectors, to automatically discover compute and containerized workloads to protect at backup runtime. This approach simplifies cloud operations, and auto-adjusts as workloads are deployed and terminated.

You can also use the Commvault Command Line (CLI) or REST API to complete the preceding steps.

## Enable Faster Restores

Set the following mandatory FeatureGates (called entity settings in the Command Center) to enable faster restores:

Name | Entity | Category | Type | Value
--- | --- | --- | --- | ---
EnableS3BatchOperationsRestore | MediaAgent | MediaAgent | Boolean | True
S3BatchOperationsRoleArn | MediaAgent | MediaAgent | String | The name of the IAM role that you created for faster restores For example, `arn:aws:iam:012345678910:role/`CommvaultBackupAndRecoveryBatchRestores Important Do not specify the entire ARN. Specify only the role name.
Optionally, customize faster restores behaviour with the following optional feature gates (entity settings): Enabl nCloudChunkRecallSleepIntervalMins eS3BatchOperationsRestore | MediaAgent | MediaAgent | Boolean | True
nCloudChunkRecallSleepIntervalMins | MediaAgent | CommServe | Integer | Commvault automatically sets an intelligent default value of 20 minutes to poll when restoring objects with S3 Batch Operations. Commvault automatically sets an intelligent default value of 540 minutes to poll when not using S3 Batch Operations. Commvault recommends leaving the default value because it is tuned based on real-world testing.
AutoCloudRecallExpireDays | CommServe | CommServDB.GxGlobalIParam | Integer | Set the number of days after which data recalled from archive storage class for cloud storage will expire. Set to 1 for restores from S3 Glacier Flexible Retrieval. Set to 1 (or greater) for restores from S3 Glacier Deep Archive. Default: 7

## Run an Amazon S3 Glacier Faster Restore

Now, you can run an Amazon S3 Glacier faster restore. For details about how faster restores work, see Process for Faster Restores from Amazon S3 Glacier.

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