Product Documentation
- Section I. Overview and planning
- Introduction to Resiliency Platform
- About Resiliency Platform features and components
- Replication in a Resiliency Platform deployment
- About Veritas Resiliency Platform Data Mover
- About Elastic Networking Adapter (ENA) support in Resiliency Platform
- Recovery to cloud data center
- Recovery to on-premises data center
- Deployment checklist
- Checklist for recovery of virtual machines to AWS
- Checklist for recovery of virtual machines to Azure
- Checklist for recovery of virtual machines to Google Cloud Platform
- Checklist for recovery to on-premises data center using Resiliency Platform Data Mover
- Checklist for recovery of virtual machines using NetBackup
- Checklist for recovery of virtual machines using third-party replication technology
- Checklist for recovery of application using third-party replication technology
- Checklist for recovery of virtual machines to AWS
- System requirements
- Manage licenses
- Using the Web Console
- Introduction to Resiliency Platform
- Section II. Deploying and configuring the virtual appliances
- Deploy and configure
- Deploy and download the Resiliency Platform virtual appliances
- About deploying the Resiliency Platform virtual appliances
- Downloading the Veritas Resiliency Platform virtual appliances
- Deploying virtual appliances in AWS
- Deploying virtual appliances in Azure
- Deploying virtual appliances in Google Cloud Platform
- Deploying the virtual appliances in Google Cloud Platform using OVA files
- Prerequisites for deploying the virtual appliances in Google Cloud Platform
- Deploying the virtual appliances in Google Cloud Platform using OVA files
- About configuring the Resiliency Platform components
- Virtual appliance security features
- About hotfixes
- Deploy and download the Resiliency Platform virtual appliances
- Depoly virtual appliances through Marketplace
- Deploying the virtual appliances in AWS through AWS Marketplace
- Prerequisites for deploying the virtual appliances in AWS
- Deploying the virtual appliances in Azure through Azure Marketplace
- Deploying the virtual appliances in AWS through AWS Marketplace
- Apply Updates
- About applying updates to Resiliency Platform
- Step 1: Prepare for upgrade
- Step 2: Upgrading the Resiliency Platform (Detach / attach the disk)
- About applying updates to Resiliency Platform
- Deploy and configure
- Section III. Setting up and managing the resiliency domain
- Managing the resiliency domain
- Getting started with a new Resiliency Platform configuration
- Managing Resiliency Managers
- Managing Infrastructure Management Servers
- Managing on-premises data centers
- Managing cloud configurations
- Managing private cloud configurations
- Integrating with NetBackup
- Recovering virtual machines to premises target data center
- Recovering virtual machines to cloud target data center
- Support for NetBackup Cloud Recovery Server configured with Veritas Alta Recovery Vault as storage account
- Integrating with InfoScale clusters
- Prerequisites for supporting InfoScale cluster node in Veritas Resiliency Platform
- Configuring InfoScale clusters in Resiliency Platform
- Managing the custom application or replication type in Resiliency Platform
- Managing the resiliency domain
- Section IV. Adding the asset infrastructure
- Manage Resiliency Platform host assets
- Prerequisites for adding hosts
- Removing hosts
- Preparing host for replication
- Manage VMware assets
- Managing VMware virtualization servers
- Prerequisites for adding VMware virtualization servers
- Prerequisites for adding VMware virtualization servers
- Managing VMware virtualization servers
- Manage Veritas Replication VIB
- Manage Hyper-V assets
- Manage Gateways
- About Replication Gateway pair
- Managing Data Gateway
- Manage enclosure assets
- Adding a discovery host
- Configuration prerequisites for adding storage enclosures to an IMS
- Adding storage enclosures
- Adding RecoverPoint appliance for replication
- Manage NetBackup primary pairing
- Manage Recovery Readiness Bundle
- Manage Resiliency Platform host assets
- Section V. Managing networks
- Manage networks
- Managing network objects in Resiliency Platform
- Network objects in Resiliency Platform
- DNS server configuration settings
- Managing network pairs
- Mapping network objects (Production and Rehearsal mapping)
- Manage networks
- Section VI. Managing settings
- Manage settings
- Managing settings for alerts and notifications and miscellaneous product settings
- Throttling the notifications
- Managing user authentication and permissions
- Configuring authentication domains
- Managing settings for alerts and notifications and miscellaneous product settings
- Manage settings
- Section VII. Working with resiliency groups
- Organize assets
- Editing a resiliency group
- Deleting a resiliency group
- Viewing resiliency group details
- Manage virtual business services
- About virtual business services
- Organize applications
- Managing service objectives
- Organize assets
- Section VIII. Configuring for disaster recovery
- Configure using Resiliency Platform Data Mover
- Managing virtual machines for remote recovery (DR) in Amazon Web Services
- Prerequisites for configuring VMware virtual machines for recovery to AWS
- AWS Customization options panel
- Managing virtual machines for remote recovery (DR) from AWS region to AWS region
- Managing virtual machines for remote recovery (DR) to Azure
- Managing virtual machines for remote recovery (DR) from Azure to Azure
- Managing virtual machines for remote recovery (DR) to Google Cloud Platform
- Managing virtual machines for remote recovery (DR) using Resiliency Platform Data Mover
- Managing physical machines for remote recovery (DR) using Resiliency Platform Data Mover
- Configure using NetBackup
- Managing the virtual machines for recovery to Azure using NetBackup MSDP-C.
- Configure using 3rd party replication technology
- Preparing VMware virtual machines for using array-based replication
- Preparing Hyper-V virtual machines for using array-based replication
- Managing virtual machines for remote recovery (DR) using 3rd party replication technology
- Managing applications for remote recovery (DR)
- Preparing VMware virtual machines for using array-based replication
- Configure using Resiliency Platform Data Mover
- Section IX. Managing disaster recovery
- Perform DR operations for virtual machines
- About Rehearse operation
- Performing the rehearsal operation for virtual machines
- Performing the recover operation for resiliency group
- Recovering virtual machines with multiple recovery points
- About Rehearse operation
- Perform DR operations on a VBS
- Perform DR operations for applications
- Evacuate assets
- Manage Resiliency Plans
- About custom script
- Perform DR operations for virtual machines
- Section X. Managing certificates
- Section XI. Product settings
- View activities
- Manage reports
- View logs
- Manage Risk Notifications
- Managing settings for alerts and notifications and miscellaneous product settings
- Throttling the notifications
- Section XII. Using Resiliency Platform APIs
- Section XIII. Troubleshooting and Using command line interface
- Troubleshoot
- Recovery of Resiliency Platform components from disaster scenarios
- Troubleshooting: NetBackup issues
- Resolving the Admin Wait state
- Troubleshooting: IP customization
- Use klish menu
- Use Application Enablement SDK
- Troubleshoot
How Veritas Resiliency Platform Data Mover handles virtual machine writes
Veritas Resiliency Platform Data Mover uses the vtstap service running on ESXi host, to intercept and process protected virtual machine writes. The vtstap service intercepts the writes to the storage, while reads are directly processed from the virtual machine storage.
The vtstap service records the location of the write I/O, and also sequences the writes. The write is applied to the virtual machine storage and sequenced writes are then asynchronously sent to source Replication Gateway. The writes that accumulate on the source Replication Gateway are periodically sent to the target Replication Gateway. The target Replication Gateway applies the writes to the target data center storage in sequence. This ensures that data is consistent on the source and target data centers. As Resiliency Platform Data Mover employs asynchronous replication, there might be a lag between the data on source and target, but it will always be consistent.
Resiliency Platform Data Mover processes an incoming write by performing the following steps in the order listed:
The operating system in the guest virtual machine issues a write to the virtual machine storage.
The I/O tap module (vtstap) records the location of the I/O.
IO is written to virtual machine storage.
The vtstap module sends the I/O data over the network to the I/O receiver in the source Replication Gateway.
The I/O receiver aggregates the I/Os.
Periodically the transceiver on the source Replication Gateway sends the I/Os across the network to the transceiver on the target Replication Gateway.
The I/Os are then sent to the applier and the applier writes them to the target data center storage.
Resiliency Platform supports protecting the virtual machines with thin disks optimally by provisioning corresponding thin disks on the target data center. Resiliency Platform Data Mover replicates only the used blocks from the disks on the source data center to the disks on the target data center thereby maintaining the thin nature of the disks. In addition to thin disks, Resiliency Platform Data Mover also replicates only the used blocks from a thick (lazy zero provisioned) disks to the disks on the target data center.
When you upgrade from 3.1 or an earlier version to version 3.2 or later and if you have thin disks on the source data center and the resiliency group has been configured for disaster recovery (DR), you need to delete the existing resiliency groups after upgrading. Reconfigure the resiliency groups to utilize the thin provisioning feature. If you are upgrading from 3.1 Update 1, you do not need this step.