This is the new *CloudFormation Template Reference Guide*. Please update your bookmarks and links. For help getting started with CloudFormation, see the [AWS CloudFormation User Guide](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/Welcome.html).

# AWS::Backup::TieringConfiguration ResourceSelection
<a name="aws-properties-backup-tieringconfiguration-resourceselection"></a>

This contains metadata about resource selection for tiering configurations.

You can specify up to 5 different resource selections per tiering configuration. Data moved to lower-cost tier remains there until deletion (one-way transition).

## Syntax
<a name="aws-properties-backup-tieringconfiguration-resourceselection-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-backup-tieringconfiguration-resourceselection-syntax.json"></a>

```
{
  "[Resources](#cfn-backup-tieringconfiguration-resourceselection-resources)" : [ String, ... ],
  "[ResourceType](#cfn-backup-tieringconfiguration-resourceselection-resourcetype)" : String,
  "[TieringDownSettingsInDays](#cfn-backup-tieringconfiguration-resourceselection-tieringdownsettingsindays)" : Integer
}
```

### YAML
<a name="aws-properties-backup-tieringconfiguration-resourceselection-syntax.yaml"></a>

```
  [Resources](#cfn-backup-tieringconfiguration-resourceselection-resources): 
    - String
  [ResourceType](#cfn-backup-tieringconfiguration-resourceselection-resourcetype): String
  [TieringDownSettingsInDays](#cfn-backup-tieringconfiguration-resourceselection-tieringdownsettingsindays): Integer
```

## Properties
<a name="aws-properties-backup-tieringconfiguration-resourceselection-properties"></a>

`Resources`  <a name="cfn-backup-tieringconfiguration-resourceselection-resources"></a>
An array of strings that either contains ARNs of the associated resources or contains a wildcard `*` to specify all resources. You can specify up to 100 specific resources per tiering configuration.  
*Required*: Yes  
*Type*: Array of String  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`ResourceType`  <a name="cfn-backup-tieringconfiguration-resourceselection-resourcetype"></a>
The type of AWS resource; for example, `S3` for Amazon S3. For tiering configurations, this is currently limited to `S3`.  
*Required*: Yes  
*Type*: String  
*Pattern*: `^[a-zA-Z0-9\-\_\.]{1,50}$`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`TieringDownSettingsInDays`  <a name="cfn-backup-tieringconfiguration-resourceselection-tieringdownsettingsindays"></a>
The number of days after creation within a backup vault that an object can transition to the low cost warm storage tier. Must be a positive integer between 60 and 36500 days.  
*Required*: Yes  
*Type*: Integer  
*Minimum*: `60`  
*Maximum*: `36500`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)