NetBackup™ Snapshot Client Administrator's Guide
- Introduction
- Installation
- Policy configuration
- Selecting the snapshot method
- About using alternate client backup
- Configuring alternate client backup
- Policy configuration tips
- About disabling snapshots
- NAS snapshot configuration
- Dynamic data streaming for D-NAS workloads
- Setting up a NAS-Data-Protection policy
- FlashBackup configuration
- Instant Recovery configuration
- About Instant Recovery
- About sizing the cache for Instant Recovery copy-on-write snapshots
- About storage lifecycle policies for snapshots
- Configuration of software-based snapshot methods
- Support for Cluster Volume Manager Environments (CVM)
- Configuration of snapshot methods for disk arrays
- OS-specific configuration tasks
- About IBM DS6000 and DS8000 arrays
- Configuring NetBackup to access the IBM DS6000 or DS8000 array
- About IBM DS4000 array
- About Hitachi SMS/WMS/AMS, USP/NSC, USP-V/VM
- Hitachi array software requirements
- About HP-XP arrays
- About array troubleshooting
- Notes on Media Server and Third-Party Copy methods
- Backup and restore procedures
- Snapshot management
- Troubleshooting
- Logging directories for UNIX platforms
- Logging folders for Windows platforms
- FlashBackup and status code 13
- Appendix A. Managing nbu_snap (Solaris)
- Appendix B. Overview of snapshot operations
Alternate client backup through data replication example (UNIX only)
A volume that is configured with a software mirror on the alternate client replicates a volume that is on the primary client. When the backup starts, the replication is suspended. The software mirror is split from the replicating volume to form a snapshot on the alternate client. The snapshot is mounted on the alternate client and is used to complete the backup. After the backup, the snapshot volume is unmounted. The mirror is resynchronized with the replicating volume, and the replication is resumed.
Phase | Action |
---|---|
Phase 1 | Primary client collaborates with the alternate client to create snapshot. |
Phase 2 | Alternate client creates the snapshot by splitting the mirror from a replicating volume. |
Phase 3 | Alternate client sends the snapshot data from the snapshot to the media server. |
Phase 4 | Media server reads the snapshot data from the alternate client. |
Phase 5 | Media server writes data to storage. |
Only the VVR snapshot method for UNIX clients supports this configuration. This configuration requires the Veritas Volume Manager (VxVM version 3.2 or later) with the VVR license.