Dell NetWorker 19.9 Administration Guide

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Pool selection criteria

It is recommended that you use the configuration settings in an Action resource to determine which pool received backup data. NetWorker provides you with the ability to configure a Pool attribute in the client resource, which can override the value defined in the Action resource. Additionally, the Pool resource contains 8.2.x legacy attributes that provide you with the ability to define backup data criteria for the pool.

How and when NetWorker uses the attributes values defined in the Pool, Action, and Client resources to determine which backup pool will receive data depends on the value that you select in the Client Override Behavior attribute of the Action resource:

Client Can Override—The value in Pool attribute of the client resource takes precedence over the Destination pool value that is defined in the Action resource. NetWorker does not use the values that are defined in the Client, Save set, and Levels attributes of the Pool resources when deciding which pool receives backup data for a client.
Client Can Not Override—The value defined Destination Pool attribute in the Action resource takes precedence over the value that is defined in the Pool attribute of the Client resource. NetWorker does not use the values that are defined in the Client, Save set, and Levels attributes of the Pool resources when deciding which pool receives backup data for a client.
Legacy Backup Rules—Enabled for migrations only. NetWorker uses the values that are defined in the Client, Save set, and Levels attributes of the pool resource to determine which pool receives backup data from a client. The values that are defined in the Client, Save set, and Levels of the pool resource take precedence over the Destination Pool value that is defined in the Action resource, and the Pool value that is defined in the Client resource.
NOTE:You cannot modify the legacy attributes in the migrated Pool resources.

The following table summarizes how NetWorker determines which pool receives the backup data, which is based on the configuration of the Action, Client, and Pool resource attributes.

Table 1. Determining which pool receives backup data
Client Override Behavior (Action)	Destination pool (Action)	Pool (Client)	Legacy criteria attributes (Pool)	Pool that receives the data
Client Can Override	Defined	Defined	Defined and criteria matches	Pool defined in Client resource
Client Can Override	Defined	Undefined	Defined and criteria matches	Pool defined in Action resource
Client Cannot Override	Defined	Defined	Defined and criteria matches	Pool defined in Action resource
Legacy Backup Rules	Defined	Undefined	Defined and criteria matches	Pool that matches legacy criteria
Legacy Backup Rules	Defined	Defined	Defined and criteria matches	Pool that matches legacy criteria
Legacy Backup Rules	Defined	Undefined	Undefined or no matches	Default

Client Can Override is enabled

A Protection group contains two clients, SQL_clnt and Exchange_clnt. The workflow that is associated with the protection group contains a backup action.

Backup action configuration:
- Destination Pool=App_backups
- Schedule=Daily full backup
- Client Override Behavior=Client Can Override
The Pool attribute that is defined for the SQL_clnt client resource is SQL_backups.
The Pool attribute for Exchange_clnt is Exchange_backups.
The Full level is enabled in the Levels attribute of a pool resource named Backups.

In this example, NetWorker sends the backup data for Exchange_clnt to Exchange_backups, the pool that is defined in the backup action. NetWorker sends the backup data for SQL_clnt to the pool defined in the client resource, SQL_backups.

Example: Client Can Override is enabled

A Protection group contains two clients, SQL_clnt and Exchange_clnt. The workflow that is associated with the protection group contains a backup action.

Backup action configuration:
- Destination Pool=App_backups
- Schedule=Daily full backup
- Client Override Behavior=Client Can Override
The Pool attribute that is defined for the SQL_clnt client resource is SQL_backups.
The Pool attribute for Exchange_clnt is not defined.
The Full level is enabled in the Levels attribute of a pool resource named Backups.

In this example, NetWorker sends the backup data for Exchange_clnt to App_backups, the pool that is defined in the backup action. NetWorker sends the backup data for SQL_clnt to the pool defined in the client resource, SQL_backups.

Client Cannot Override is enabled

A Protection group contains two clients, SQL_clnt and Exchange_clnt. The workflow that is associated with the protection group contains a backup action.

Backup action configuration:
- Destination Pool=App_backups
- Schedule=daily full backup
- Client Override Behavior=Client Cannot Override
The Pool attribute that is defined for the SQL_clnt client resource is SQL_backups.
The Pool attribute for Exchange_clnt is Exchange_backups.
The Full level is enabled in the Levels attribute of a pool resource named Backups.

In this example, NetWorker sends the backup data for SQL_clnt and Exchange_clnt to App_backups, the pool that is defined in the backup action.

Legacy Backup Rules is enabled

A Protection group contains two clients, SQL_clnt and Exchange_clnt. The workflow that is associated with the protection group contains a backup action.

Backup action configuration:
- Destination Pool=App_backups
- Schedule=daily full backup
- Client Override Behavior= Legacy Backup Rules
The Pool attribute that is defined for the SQL_clnt client resource is SQL_backups.
The Pool attribute for Exchange_clnt is not defined.
The Full level is enabled in the Levels attribute of a pool resource named Backups.

In this example, NetWorker sends the backup data for SQL_clnt and Exchange_clnt to Backups, the pool that matches the level Full backup criteria.

Legacy Backup Rules is enabled

A Protection group contains two clients, SQL_clnt and Exchange_clnt. The workflow that is associated with the protection group contains a backup action.

Backup action configuration:
- Destination Pool= App_backups
- Schedule=daily full backup
- Client Override Behavior= Legacy Backup Rules
The Pool attribute that is defined for the SQL_clnt client resource is SQL_backups.
The Pool attribute for Exchange_clnt is not defined.
The manual level is enabled in the Levels attribute of a pool resource named Backups.

In this example, NetWorker sends the backup data for SQL_clnt and Exchange_clnt to the Default pool because a pool does not exist with legacy attributes that match the configuration for the backup data.