Veritas NetBackup™ Snapshot Client Administrator's Guide
- Introduction
- Snapshot Client features
- About snapshot basics
- Off-host backup overview
- Off-host backup methods
- Snapshot Client requirements
- Installation
- Policy configuration
- Selecting the snapshot method
- Configuration parameters for Snapshot Client
- About using alternate client backup
- Configuring alternate client backup
- Policy configuration tips
- About disabling snapshots
- FlashBackup configuration
- Instant Recovery configuration
- About Instant Recovery
- About sizing the cache for Instant Recovery copy-on-write snapshots
- About configuring VxVM
- About storage lifecycle policies for snapshots
- Network Attached Storage (NAS) snapshot configuration
- Configuration of software-based snapshot methods
- Support for Cluster Volume Manager Environments (CVM)
- Configuration of snapshot methods for disk arrays
- About the new disk array snapshot methods
- Disk array configuration tasks
- OS-specific configuration tasks
- About VSS configuration (Windows)
- About EMC CLARiiON arrays
- Configuring NetBackup to access the CLARiiON array
- Configuring a NetBackup policy for a CLARiiON array method
- About EMC Symmetrix arrays
- About configuration for EMC_TimeFinder_Mirror
- About configuration for EMC_TimeFinder_Clone
- About HP EVA arrays
- Verifying connectivity from clients to array using SSSU 5.0
- 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
- About restores from a FlashBackup backup
- Instant Recovery restore features
- About configurations for restore
- About restoring from a disk snapshot
- 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
- Appendix C. NetBackup integration with CloudPoint for snapshot managment
Checkpoint retention schedules
For Instant Recovery storage checkpoints, no data is moved between the client and the media server. Instead, a VxFS Storage Checkpoint is created on the client. For Oracle clients, the file names and directory names are sent to the server for the catalog. In the case of file systems (non-database clients), only the directory name is sent, not the file data.
Changes in the files on the client's primary fileset are reflected in the Storage Checkpoint until the backup policy runs again, creating another Storage Checkpoint. Storage Checkpoints are created and retained until the maximum checkpoints threshold is exceeded, when the oldest checkpoint is removed.
Figure: Instant Recovery Retention Schedule for Storage Checkpoints shows the Instant Recovery checkpoint expiration schedule. If the maximum checkpoint value is set to 2 and a third checkpoint is created, the oldest is removed.
A new Storage Checkpoint is created each time a backup is started.
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