Script-based policy - Storage and Retention — NetBackup 10.4

Script-based policy - Storage and Retention

This topic describes storage and retention properties of the script-based policies.

Table: Storage and retention behavior

Property	Description
Policy is a snapshot type	If the policy is a snapshot type, the following are the possible scenarios of the retention behavior: If a schedule has overridden the policy storage, the override storage on the schedule takes precedence over the policy storage. If the policy storage is a snapshot SLP, the application schedule must override the policy storage. The storage that is specified on the application schedule may not be a snapshot SLP. If the storage being used is not an SLP, the schedule determines the retention for the snapshot data. If you use the policy storage unit as an SLP, the SLP determines the retention for the snapshot data. Streamed data is processed by using the application schedule. Snapshot data is processed by using the automatic schedule.
Policy is not a snapshot type	If the policy is not a snapshot type, the following are the possible scenarios of the retention behavior: If the application schedule has overridden the policy storage, the override storage on the schedule takes precedence over the policy storage. If the storage being used is not an SLP, the retention is derived from the schedule. If the storage being used is an SLP, the retention is derived from the SLP. Since all data is streamed, the data is processed using the application schedule.

Property

Description

Policy is a snapshot type

If the policy is a snapshot type, the following are the possible scenarios of the retention behavior:

If a schedule has overridden the policy storage, the override storage on the schedule takes precedence over the policy storage.
If the policy storage is a snapshot SLP, the application schedule must override the policy storage. The storage that is specified on the application schedule may not be a snapshot SLP.
If the storage being used is not an SLP, the schedule determines the retention for the snapshot data.
If you use the policy storage unit as an SLP, the SLP determines the retention for the snapshot data.

Streamed data is processed by using the application schedule. Snapshot data is processed by using the automatic schedule.

Policy is not a snapshot type

If the policy is not a snapshot type, the following are the possible scenarios of the retention behavior:

If the application schedule has overridden the policy storage, the override storage on the schedule takes precedence over the policy storage.
If the storage being used is not an SLP, the retention is derived from the schedule.
If the storage being used is an SLP, the retention is derived from the SLP.

Since all data is streamed, the data is processed using the application schedule.

The following are examples of the script-based policy storage and retention behavior for snapshot-based policy types:

Policy storage	Application schedule storage	Full/Incremental schedule storage	Streamed data retention is derived from:	Snapshot data retention is derived from:
AdvancedDisk	-	-	Application Schedule	Full/Incremental Schedule
AdvancedDisk	-	Non-Snapshot SLP	Application Schedule	Non-Snapshot SLP
Non-Snapshot SLP	AdvancedDisk	-	Application Schedule	Non-Snapshot SLP
Tape library	Non-Snapshot SLP	-	Non-Snapshot SLP	Full/Incremental Schedule
Snapshot SLP	AdvancedDisk (must be specified)	Snapshot SLP	Application Schedule	Snapshot SLP on Full/Incremental Schedule
AdvancedDisk	-	Snapshot SLP	Application Schedule	Snapshot SLP
Non-Snapshot SLP	-	-	Non-Snapshot SLP	Non-Snapshot SLP
AdvancedDisk	Non-Snapshot SLP	Snapshot SLP	Non-Snapshot on Application Schedule	Snapshot SLP on Full/Incremental Schedule
Snapshot SLP	Non-Snapshot SLP (must be specified)	Snapshot SLP	Non-Snapshot on Application Schedule	Snapshot SLP on Full/Incremental Schedule

The following are examples of the script-based policy storage and retention behavior for stream-based policy types:

Policy storage	Schedule storage	Application schedule storage	Streamed data retention is derived from:
AdvancedDisk	-	N/A	Application Schedule
Non-Snapshot SLP	AdvancedDisk	N/A	Application Schedule
AdvancedDisk	Non-Snapshot SLP	N/A	Non-Snapshot SLP
Non-Snapshot SLP	-	N/A	Non-Snapshot SLP
AdvancedDisk	-	Non-Snapshot SLP	Non-Snapshot SLP
Snapshot SLP	-	AdvancedDisk	Application Schedule

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