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
About the snapshot state file
Whenever NetBackup creates a snapshot, it also creates a file that contains information about the snapshot. This file is called the snapshot state file. The state file stores information that is required for performing certain operations on the snapshot. (Examples of such operations are, data restore from snapshots, backup from snapshots, or snapshot deletion.
The NetBackup bpfis process creates a state file on the client. A copy of the state file is stored on the NetBackup Master server. In a cluster, if the client experiences problems and failover to another node occurs, the state file on the NetBackup Master server comes in handy to obtain information about the failed client. In case the state file does not exist on the NetBackup Master server, it becomes impossible for the active node to get snapshot information.
Table: Location of snapshot state file
Location | UNIX | Windows |
---|---|---|
On the client |
|
|
On the master server |
|
|