Veritas InfoScale™ 8.0.2 Replication Administrator's Guide - Linux
- Section I. Getting started with Volume Replicator
- Introducing Volume Replicator
- Understanding how Volume Replicator works
- How VVR uses kernel buffers for replication
- Replication in a shared disk group environment
- Using SmartTier with VVR
- Understanding the VVR snapshot feature
- About VVR compression
- Planning and configuring replication
- Before you begin configuring
- Choosing the mode of volume replication
- Planning the network
- Sizing the SRL
- Understanding replication settings for a Secondary
- Configuring VVR in a VCS environment
- Using the primary-elect feature to choose the primary site after a site disaster or network disruption
- Requirements for configuring VVR in a VCS environment
- Example setting up VVR in a VCS environment
- Configuring the agents for a bunker replication configuration
- Section II. Setting up and administering VVR
- Setting up replication
- Creating a Replicated Data Set
- Creating a Primary RVG of an RDS
- Adding a Secondary to an RDS
- Changing the replication settings for a Secondary
- Synchronizing the Secondary and starting replication
- Starting replication when the data volumes are zero initialized
- Displaying configuration information
- Displaying RVG and RDS information
- Displaying information about data volumes and volume sets
- Displaying information about Secondaries
- Displaying statistics with the vrstat display commands
- Collecting consolidated statistics of the VVR components
- Displaying network performance data
- VVR event notification
- Administering Volume Replicator
- Administering data volumes
- Associating a volume to a Replicated Data Set
- Associating a volume set to an RDS
- Associating a Data Change Map to a data volume as a log plex
- Resizing a data volume in a Replicated Data Set
- Administering the SRL
- Incrementally synchronizing the Secondary after SRL overflow
- Administering replication
- Administering the Replicated Data Set
- Administering Storage Checkpoints
- Creating RVG snapshots
- Using the instant snapshot feature
- About instant full snapshots
- Preparing the volumes prior to using the instant snapshot feature
- Creating instant full snapshots
- About instant space-optimized snapshots
- Creating instant space-optimized snapshots
- About instant plex-breakoff snapshots
- Administering snapshots
- Using the traditional snapshot feature
- Using Veritas Volume Manager FastResync
- Verifying the DR readiness of a VVR setup
- Backing up the Secondary
- Administering data volumes
- Using VVR for off-host processing
- Transferring the Primary role
- Migrating the Primary
- About taking over from an original Primary
- Failing back to the original Primary
- Choosing the Primary site after a site disaster or network disruption
- Troubleshooting the primary-elect feature
- Replication using a bunker site
- Introduction to replication using a bunker site
- Setting up replication using a bunker site
- Using a bunker for disaster recovery
- Replication using a bunker site in a VCS environment
- Troubleshooting VVR
- Recovery from configuration errors
- Errors during an RLINK attach
- Errors during modification of an RVG
- Recovery on the Primary or Secondary
- Recovering from Primary data volume error
- Primary SRL volume error cleanup and restart
- Primary SRL header error cleanup and recovery
- Secondary data volume error cleanup and recovery
- Tuning replication performance
- SRL layout
- Tuning Volume Replicator
- VVR buffer space
- Tuning VVR compression
- VVR buffer space
- Setting up replication
- Section III. Getting started with File Replicator
- Introducing File Replicator
- Administering File Replicator
- Displaying file replication job information
- Section IV. Analyzing your environment with Volume Replicator Advisor
- Introducing Volume Replicator Advisor (VRAdvisor)
- Collecting the sample of data
- About collecting the sample of data
- Collecting the sample of data on UNIX
- Collecting the sample of data on Windows
- Analyzing the sample of data
- About analyzing the sample of data
- Analyzing the collected data
- Understanding the results of the analysis
- Viewing the analysis results
- Recalculating the analysis results
- Installing Volume Replicator Advisor (VRAdvisor)
- Section V. VVR reference
- Appendix A. VVR command reference
- Appendix B. Using the In-band Control Messaging utility vxibc and the IBC programming API
- Using the IBC messaging command-line utility
- Examples - Off-host processing
- In-band Control Messaging API
- Appendix C. Volume Replicator object states
- Appendix D. Alternate methods for synchronizing the Secondary
- Using the full synchronization feature
- Using block-level backup and Storage Checkpoint
- Using difference-based synchronization
- Examples for setting up a simple Volume Replicator configuration
- Appendix E. Migrating VVR from IPv4 to IPv6
- Migrating VVR to support IPv6 or dual stack
- About migrating to IPv6 when VCS global clustering and VVR agents are not configured
- About migrating to IPv6 when VCS global clustering and VVR agents are configured
- About migrating to IPv6 when VCS global clustering and VVR agents are configured in the presence of a bunker
- Migrating to IPv6 when VCS global clustering and VVR agents are configured in the presence of a bunker
- Appendix F. Sample main.cf files
Modifying a consistency group
You can modify a consistency group by adding or removing a path (file or directory) or pattern to or from the include and exclude path and pattern lists. A consistency group can be modified only if it is not associated with any replication job.
Use the following commands to modify a consistency group:
vfradmin cgrp include add
vfradmin cgrp include remove
vfradmin cgrp exclude add
vfradmin cgrp exclude remove
The vfradmin cgrp set mntpt command allows you to modify the consistency group mount point. You must use the vfradmin job clear cgrp command to disassociate the consistency group from a file replication job.
To disassociate a consistency group from a replication job, type the following command on both the source and the target systems:
# vfradmin job clear cgrp job_name mnpt cgrp_name
where:
job_name is the name of the replication job that you want to disassociate the consistency group from.
mnpt is the mount point on the source or the target system.
cgrp_name is the name of the consistency group that you want to disassociate from the replication job.
After all desired modifications are made to the consistency group, it must be re-associated with the replication job. To associate a consistency group with a replication job, type the following command on both the source and the target systems:
# vfradmin job set cgrp job_name mnpt cgrp_name
where:
job_name is the name of the replication job that you want to associate the consistency group with.
mnpt is the mount point on the source or the target system.
cgrp_name is the name of the consistency group that you want to associate with the replication job.
To add a path (file or directory) to the include list, type the following command on both the source and the target systems:
# vfradmin cgrp include add cgrp_name mntpt include-path1 include-path2
where:
cgrp_name is the name of the consistency group you are modifying.
mntpt is the mount point on the source or the target system.
include-path1 and include-path2 are the full paths including hte mount points of the files or directories you want to add to the include list.
To add a path (file or directory) to the exclude list, type the following command on both the source and the target systems:
# vfradmin cgrp exclude add cgrp_name mntpt exclude-path1 exclude-path2
where:
cgrp_name is the name of the consistency group you are modifying.
mntpt is the mount point on the source or the target system.
exclude-path1 and exclude-path2 are the full paths including mount points of the files or directories you want to add to the exclude list.
Note:
The exclude path should be a subset of the include path.
To remove a path (file or directory) from the include list, type the following command on both the source and the target systems:
# vfradmin cgrp include remove cgrp_name mntpt include-path1 \ include-path2
where:
cgrp_name is the name of the consistency group you are modifying.
mntpt is the mount point on the source or the target system.
include-path1 and include-path2 are the full paths including mount points of the files or directories you want to remove from the include list.
To remove a path (file or directory) from the exclude list, type the following command on both the source and the target systems:
# vfradmin cgrp exclude remove cgrp_name mntpt exclude-path1 \ exclude-path2
where:
cgrp_name is the name of the consistency group you are modifying.
mntpt is the mount point on the source or the target system.
exclude-path1 and exclude-path2 are the full paths including mount points of the files or directories you want to remove from the exclude list.
To modify the consistency group mount point, type the following command on both the source and the target systems:
# vfradmin cgrp set mntpt cgrp_name old_mntpt new_mntpt
where:
cgrp_name is the name of the consistency group you are modifying
old_mntpt is the old mount point on the source or the target system.
new_mntpt is the new mount point on the source or the target system.
The file system must be mounted at new_mntpt. If the file system is not mounted at new_mntpt, the command will fail.