Veritas NetBackup™ Snapshot Client Administrator's Guide
- Introduction
- Snapshot Client features at a glance
- Snapshot Client features
- About snapshot basics
- Benefits of copy-on-write versus mirror
- About local backup of a snapshot
- Off-host backup overview
- Off-host backup methods
- Snapshot Client requirements
- Snapshot Client terminology
- Snapshot Client assistance
- About open file backups for Windows
- Installation
- Policy configuration
- Notes on Snapshot Client policies
- Configuring a Snapshot Client policy
- Backup Selections tab options when configuring a policy
- Off-host backup configuration options
- Automatic snapshot selection
- Selecting the snapshot method
- Snapshot methods
- Configuration parameters for Snapshot Client
- Cache device path parameter
- Delay in seconds between disk group split retries parameter
- IBC receive timeout parameter (seconds)
- IBC send timeout parameter (seconds)
- Keep snapshot after backup parameter
- Maximum number of volumes to resynchronize concurrently parameter
- Maximum Snapshots parameter (Instant Recovery only)
- Number of times to retry disk group split parameter
- Provider Type parameter
- Resynchronize mirror in background parameter
- Snapshot Attribute parameter
- Sync I/O delay in milliseconds parameter (UNIX only)
- Sync region size in MB parameter (UNIX only)
- Wait for mirror sync completion parameter
- Important note on VSS and disk arrays
- Synchronize mirror before the backup parameter
- Snapshot Resources
- Configuring backup scripts
- About using alternate client backup
- Configuring alternate client backup
- Policy configuration tips
- About disabling snapshots
- FlashBackup configuration
- Instant Recovery configuration
- About Instant Recovery capabilities
- Instant Recovery requirements
- Instant Recovery restrictions
- Giving full server privileges to the media server
- About Instant Recovery
- Configuring a policy for Instant Recovery
- About sizing the cache for Instant Recovery copy-on-write snapshots
- About configuring VxVM
- Modifying the VxVM or FlashSnap resync options for point in time rollback
- Instant Recovery for databases
- 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
- EMC CLARiiON software requirements for UNIX
- Veritas support for VSS Snapshot and EMC CLARiiON
- Diagram of installed software for EMC CLARiiON
- Verifying connectivity from client to array
- About resolving host names on the network
- Configuring NetBackup to access the CLARiiON array
- Adding clients to a CLARiiON storage group
- Configuring for EMC_CLARiiON_SnapView_Clone
- Creating a clone private LUN with the EMC Navisphere Web interface
- Creating a clone group and select a LUN as source
- Adding clone LUNs to the clone group
- Obtaining the device identifier for each source and clone LUN
- About configuration for EMC_CLARiiON_SnapView_Snapshot
- Configuring a reserved LUN pool for the storage processors
- Configuring a NetBackup policy for a CLARiiON array method
- Common CLARiiON array configuration problems
- About EMC Symmetrix arrays
- EMC Symmetrix DMX software requirements
- Clone emulation flag can cause snapshots to fail
- EMC snapshot operation fails
- Support for EMC Symmetrix with Volume Shadow Copy Service
- Prerequisites for using EMC Symmetrix disk arrays
- Configuring NetBackup clients to use EMC Symmetrix
- About configuring NetBackup to access the Symmetrix array
- About configuration for EMC_TimeFinder_Mirror
- About configuration for EMC_TimeFinder_Clone
- About configuration for EMC_TimeFinder_Snap
- Configuring a policy for EMC_TimeFinder methods
- About HP EVA arrays
- Prerequisites for working with HP EVA arrays
- HP EVA software requirements for UNIX
- Diagram of installed software for HP EVA
- Veritas support for VSS Snapshot and HP EVA
- Verifying connectivity from clients to array using SSSU 5.0
- Configuring NetBackup to access the EVA array
- Configuring a NetBackup policy for an HP EVA array method
- HP EVA restrictions
- About IBM DS6000 and DS8000 arrays
- IBM DS6000 and DS8000 software requirements
- Preconfiguration for IBM arrays
- Configuring NetBackup to access the IBM DS6000 or DS8000 array
- Configuring the IBM array for NetBackup
- Using DSCLI commands to obtain unique IBM identifiers
- Configuring a NetBackup policy for IBM_DiskStorage_FlashCopy
- For further reference on IBM arrays
- About IBM DS4000 array
- About Hitachi SMS/WMS/AMS, USP/NSC, USP-V/VM
- Hitachi array software requirements
- Preconfiguration for Hitachi
- About communication between NetBackup and the Hitachi array
- Determining if the Hitachi command devices are visible
- About configuring the Hitachi array for NetBackup
- Obtaining the Hitachi array serial number and the unique device identifiers
- Configuring a NetBackup policy for Hitachi_ShadowImage or Hitachi_CopyOnWrite
- About HP-XP arrays
- HP-XP array software requirements
- Preconfiguration for HP-XP
- About communication between NetBackup and the HP-XP array
- Determining if the HP-XP command devices are visible
- About configuring the HP-XP array for NetBackup
- Obtaining the array serial number and unique HP-XP identifiers
- Configuring a NetBackup policy for HP_XP_BusinessCopy and HP_XP_Snapshot
- About array troubleshooting
- Notes on Media Server and Third-Party Copy methods
- Disk requirements for Media Server and Third-Party Copy methods
- Directives for Media Server and Third-Party Copy methods
- Storage units for Media Server and Third-Party Copy methods
- Preventing multiplexing on a third-party copy backup
- Raw partition backups
- Increasing the client read timeout for all clients
- Further information on off-host data mover backups
- Backup and restore procedures
- About performing a backup
- About performing a restore
- About restores from a FlashBackup backup
- Restoring a large number of files in a clustered file system (VxFS on UNIX Only)
- Instant Recovery restore features
- Notes for restoring individual files from an Instant Recovery snapshot
- About configurations for restore
- About restoring from a disk snapshot
- Troubleshooting
- About gathering information and checking logs
- Logging directories for UNIX platforms
- Logging folders for Windows platforms
- Customer support contact information
- Latest patches and updates
- Snapshot provider information
- Important notes on Snapshot Client
- Snapshot Client installation problems
- FlashBackup and status code 13
- Single file restore from a FlashBackup Instant Recovery snapshot of a file protected by Windows VSS writer fails
- Identifying and removing a left-over snapshot
- Removing a VxVM volume clone
- Alternate client restore and backup from a snapshot fails
- Restore from a snapshot fails with status 2800
- Raw Partition restore fails with the message 'FlashBackup-Windows policy restore error'
- Snapshot creation fails with error 156
- Snapshot fails with error 20
- Snapshot job fails and the snapshot command does not recognize the volume name
- Snapshot creation fails with error 4220
- Snapshot creation fails when the same volume is mounted on multiple mount points of the same host
- Snapshot-based backup and restore failure
- Multiple snapshot jobs fail with code 156 or 1541.
- FlashBackup policy fails, with multiple backup selections [Cache =]
- Partial backup failure with 'Snapshot encountered error 156'
- Backup of file system validation fails with error 223
- Policy validation fails if the specified CIFS share path contains a forward slash
- An NDMP snapshot policy for wildcard backup fails with error 4201
- Troubleshooting with bpfis log
- Limitations of using HP-UX 11.31
- While configuring a policy for snapshot operations, the NetBackup Administration Console hangs
- Appendix A. Managing nbu_snap (Solaris)
- Appendix B. Overview of snapshot operations
- Appendix C. NetBackup integration with CloudPoint for snapshot managment
Configuring a policy for Instant Recovery
This section explains how to configure a policy for the backups that are enabled for Instant Recovery.
To configure a policy for Instant Recovery
- On the master server, open the NetBackup Administration Console.
- Click Policies. In the All Policies pane, open a policy or create a new one.
- For the policy type, select Standard, MS-Windows, FlashBackup-Windows, or the database agent type appropriate for the client(s).
- Select a storage unit (disk or tape).
If you select Snapshots only on the Schedules tab, the storage unit is not used. NetBackup creates a snapshot only.
- Select Perform snapshot backups.
- Select Retain snapshots for instant recovery or SLP management.
NetBackup retains the snapshot so that Instant Recovery can be performed from the snapshot. A normal backup to storage is also performed, if you do not select Snapshots only on the Schedules tab.
- To save the settings, click Apply.
- Click the Options option to select the snapshot method.
For a new policy, you can skip this step to let NetBackup select the method (auto is the default method).
Select a snapshot method from the pull-down list. For creating an Instant Recovery snapshot, the available methods are:
auto
NetBackup selects the snapshot method. If auto is the method, only one snapshot can be retained at a time.
FlashSnap
Uses the VxVM FlashSnap feature and VxVM FastResync to create the snapshot. VxVM mirrors must be configured:
This method can also use instant snapshots:
See About VxVM instant snapshots.
For Windows clients, FlashSnap can use the Fast File Resync feature of Storage Foundation for Windows 4.1.
NAS_Snapshot
Uses the NDMP V4 snapshot extension to create the snapshot on the NAS-attached disk.
OST_FIM
The name of the snapshot method that is selected in a policy configured for snapshot replication using Replication Director. The name represents OpenStorage Frozen Image Method.
Refer to the NetBackup Replication Director Solutions Guide for more details.
VSS
VSS selects the actual snapshot method depending on which snapshot provider is configured on the client. For example, if the client data is stored on an EMC CLARiiON disk array, and the array administrator has fully configured the array and its snapshot capability: VSS selects the appropriate EMC CLARiiON snapshot method for the backup.
VxFS_Checkpoint
Uses VxFS Storage Checkpoint to create the snapshot. A new Storage Checkpoint is created whenever a backup using the VxFS_Checkpoint method is executed.
VxVM
Uses VxVM FastResync to create the snapshot. VxVM mirrors must be configured:
The VxVM method can also use instant snapshots:
See About VxVM instant snapshots.
For Windows clients, VxVM can use the Fast File Resync feature of Storage Foundation for Windows 4.1.
VVR
Creates a snapshot of a VxVM volume on a Veritas Volume Replication host.
The disk array snapshot methods.
See the appropriate topic for your disk array and snapshot method.
Change parameter values for the method, if needed.
When you are finished, click OK.
- To configure a schedule, use the Schedule tab.
For a snapshot only, select Snapshots only.
If Snapshots only is selected, the snapshot is not backed up to tape or other storage. NetBackup creates a snapshot on disk only. This option is required for the NAS_Snapshot method. Note that you must deselect Snapshots only if you want to deselect Retain snapshots for instant recovery and SLP management on the policy Attribute tab.
If the snapshot uses VxFS_Checkpoint or is a VxVM space-optimized snapshot, it is created on the same device as the device containing the original data. In that case, you may want to create another policy to back up the data to a separate device.
If Snapshots and copy snapshots to a storage unit is selected, NetBackup creates (and retains) a snapshot and backs up the client's data to the storage unit that is specified in the policy.
You can select the retention period for snapshots under Retention.
Make other schedule selections as desired, and click OK.
- To enter the files and folders to be backed up, use the Backup Selections tab.
When backing up Oracle database clients, refer to the NetBackup for Oracle System Administrator's Guide for instructions.
Snapshot Client policies do not support the ALL_LOCAL_DRIVES entry in the policy's Backup Selections list, except for the policies that are configured with the VMware method.
- To specify clients to be backed up by this policy, use the Clients tab.
- On the policy Attributes tab: if you click Apply or OK, a validation process checks the policy and reports any errors. If you click Close, no validation is performed.