Veritas NetBackup™ Replication Director Solutions Guide
- Introduction
- Additional configuration topics
- Creating a NetBackup storage server for snapshot replication
- Configuring disk pools for snapshot and replication
- About disk pools for snapshots and snapshot replication
- Using bpstsinfo to view the replication topology of a device
- Configuring storage units and storage unit groups for snapshots and snapshot replication
- Configuring storage lifecycle policies for snapshots and snapshot replication
- Operation types in a storage lifecycle policy
- Snapshot operation in an SLP
- Index From Snapshot operation in an SLP
- Snapshot operation in an SLP
- Retention types for storage lifecycle policy operations
- Configuring backup policies for snapshots and snapshot replication
- About NDMP support for Replication Director
- Restoring from a snapshot
- About restores from array-based snapshots of virtual machines
- OpsCenter reporting
- Using NetApp disk arrays with Replication Director
- Supported NetApp topologies
- Using NetApp Data ONTAP 7-mode with Replication Director
- About using NetApp SAN-connected storage with Replication Director
- Using NetApp Clustered Data ONTAP with Replication Director
- Using Oracle with Replication Director
- Using Virtual Machines with Replication Director
- Terminology
Mirror retention type for SLP operations
A mirror replica of a snapshot is eligible for expiration as soon as:
All immediate child copies are successfully created.
All immediate child copies that are mirrors are eligible for expiration.
The selection of the Mirror retention indicates that NetApp volume SnapMirror is to be used as the replication method. If any non-mirror retention type such as Fixed or Expire after copy is selected for the Replication operation, the NetApp SnapVault replication method is used.
In mirror replication, the replica copy is dependent on the existence of the source. (The source can be the original snapshot or another replica.) Therefore, the retention of the replica depends on the retention of the source. If the source is deleted, the mirror is automatically deleted.
In non-mirror replication, the replica is independent of the source and can have an independent retention. If the source is deleted, the non-mirror replica is not affected and can be used longer than the source. Or, if the replica is deleted first, it is not recreated and the source can be kept longer than the replica.