Veritas NetBackup™ Flex Scale Administrator's Guide
- Product overview
- Viewing information about the NetBackup Flex Scale cluster environment
- NetBackup Flex Scale infrastructure management
- User management
- About Universal Shares
- Node and disk management
- Adding a node to the cluster using the NetBackup Flex Scale web interface
- License management
- Managing the Fibre Channel ports
- Requirements
- Managing hardware vendor packages
- User management
- NetBackup Flex Scale network management
- Bonding operations
- Data network configurations
- Network configuration on plain device (eth5)
- Network configuration on bonded interfaces (bond0 on eth5 and eth7)
- NetBackup Flex Scale infrastructure monitoring
- Resiliency in NetBackup Flex Scale
- EMS server configuration
- Site-based disaster recovery in NetBackup Flex Scale
- Performing disaster recovery using RESTful APIs
- NetBackup Flex Scale security
- STIG overview for NetBackup Flex Scale
- FIPS overview for NetBackup Flex Scale
- Support for immutability in NetBackup Flex Scale
- Deploying external certificates on NetBackup Flex Scale
- Configuring multifactor authentication
- Single Sign-On (SSO)
- Appendix A. Maintenance procedures for HPE servers
- Appendix B. Configuring NetBackup optimized duplication
- Appendix C. Disaster recovery terminologies
- Appendix D. Configuring Auto Image Replication
VVR technology in disaster recovery
In NetBackup Flex Scale, the NetBackup catalog is replicated using Veritas Volume Replicator (VVR). VVR is a block level replication software. A consistency group of volumes is created on the source location and remote location. In VVR terminology, consistency group is known as Replicated Volume Group (RVG). VVR replicates data from a primary RVG on the primary site to the secondary RVG on the secondary site. VVR maintains write-order fidelity to guarantee consistent and recoverable copy of data on secondary site.
RVG consists of following components:
RLINK: Establishes the replication link between primary and secondary RVG.
SRL: Storage Replicator Log is a circular buffer of all the writes for an RVG. SRL enables VVR to maintain write-order fidelity at the secondary site.
Data Volumes: Group of related volumes.
DCM: Data Change Map is a component of VVR which is used to track application writes when the SRL overflows. This enables VVR to avoid complete resynchronization of the data on the secondary. DCM is only active on the primary site.