Veritas Access Appliance Administrator's Guide
- Section I. Introducing Access Appliance
- Section II. Configuring Access Appliance
- Managing users
- Configuring the network
- Configuring authentication services
- Configuring user authentication using digital certificates or smart cards
- Section III. Managing Access Appliance storage
- Configuring storage
- Managing disks
- Access Appliance as an iSCSI target
- Configuring storage
- Section IV. Managing Access Appliance file access services
- Configuring the NFS server
- Setting up Kerberos authentication for NFS clients
- Using Access Appliance as a CIFS server
- About configuring CIFS for Active Directory (AD) domain mode
- About setting trusted domains
- About managing home directories
- About CIFS clustering modes
- About migrating CIFS shares and home directories
- About managing local users and groups
- Using Access Appliance as an Object Store server
- Configuring the NFS server
- Section V. Managing Access Appliance security
- Section VI. Monitoring and troubleshooting
- Configuring event notifications and audit logs
- About alert management
- Appliance log files
- Configuring event notifications and audit logs
- Section VII. Provisioning and managing Access Appliance file systems
- Creating and maintaining file systems
- Considerations for creating a file system
- About managing application I/O workloads using maximum IOPS settings
- Modifying a file system
- Managing a file system
- Creating and maintaining file systems
- Section VIII. Provisioning and managing Access Appliance shares
- Creating shares for applications
- Creating and maintaining NFS shares
- About the NFS shares
- Creating and maintaining CIFS shares
- About the CIFS shares
- About managing CIFS shares for Enterprise Vault
- Integrating Access Appliance with Data Insight
- Section IX. Managing Access Appliance storage services
- Configuring episodic replication
- Episodic replication job failover and failback
- Configuring continuous replication
- How Access Appliance continuous replication works
- Continuous replication failover and failback
- Using snapshots
- Using instant rollbacks
- Configuring episodic replication
- Section X. Reference
About Access Appliance continuous replication
The Access Appliance continuous replication solution provides high performance, robustness, ease of use, and synchronous replication capability which is designed to contribute to an effective disaster recovery plan.
Access Appliance continuous replication lets you replicate volumes from one node in the source cluster to another node in the destination cluster. The continuous replication enables you to maintain a consistent copy of application data at one remote location. It replicates the application writes on the volumes at the source location to a remote location across any distance.
If a disaster occurs at the source location, you can use the copy of the application data at the remote location and restart the application at the remote location. The host at the source location on which the application is running is known as the primary host and the host at the target location is known as the secondary host. The volumes on the primary host must be synchronized initially with the volumes on the secondary host.
Major features of Access Appliance continuous replication include:
Performs replication of volumes in synchronous as well as asynchronous mode, ensuring data integrity and consistency.
Maintains write-order fidelity, which applies writes on the secondary host in the same order that they were issued on the primary host.
Enables easy recovery of the application at the remote site.
Provides a command-line interface (CLI) and a graphical user interface (GUI) for online management of the synchronous replication.
See the continuous(1) manual page for more information.