If you have worked with Veeam in the past, you are familiar with the Proxy Component. This I/O filter is built on the basis of vSphere API for I/O filtering (VAIO) and provides the capabilities to be able to achieve near-zero RPO. Also, the filter communicates with the Veeam CDP Coordinator Service on the backup server and notifies the service that the backup infrastructure must be reconfigured if any proxy becomes unavailable. It is the I/O filter that reads and processes I/O operations in transit between the protected VMs and their underlining datastore and that sends/receives data to/from VMware CDP proxies. For more information on how to install the filter, see Installing I/O Filter. After you install the I/O filter on the clusters, Veeam Backup & Replication automatically installs the filter on all hosts added to the clusters. Unlike snapshot-based replication, to able to use hosts for CDP, you must install the I/O filter on each cluster where hosts reside. Also, the target host manages VM replicas: creates replicas, retains restore points and so on. The target host receives data from target proxies and saves this data to VM replicas on the datastore.The source host reads VM disk data, reads and processess I/O operations and sends data to source proxies.The source and target hosts perform the following tasks: For more information on requirements to the hosts and how to add vCenter Servers to the backup infrastructure, see the Requirements and Limitations and Adding VMware vSphere Servers sections. In turn, clusters must be managed by the same vCenter Server or two different vCenter Servers connected to the same backup server. The source and target hosts must be a part of the same cluster or two different clusters. The Primary Site (source) and the Secondary Site (target) hosts are points between which replicated VM data is moved. When planning for DR there is a concept of a Primary and Secondary site. In the event of a disaster, the Backup server would be available to preform the actions required to re-establish the services. When planning for DR with a 2 nd site, we recommend installing the backup server in the target site. The backup server runs the Veeam CDP Coordinator Service. This service coordinates replication and data transfer tasks, and controls resource allocation. The backup server is the configuration, administration and management core of the backup infrastructure. “The following backup infrastructure components are required for CDP: Here is an example of how to categorize workloads: It is important to work with the business to categorize the workloads that best match their level of criticality. We also need to keep in mind that different applications carry different levels of criticality and not all workloads need to be protected in the same way. Veeam CDP can help better protect the Tier One workloads running on VMware vSphere. With the release of CDP in Veeam B&R v11, Veeam customers are now able to get near-zero RPO without any additional Capex expenditure and/or vendor lock-in. Why Veeam Continuous Data Protection is Optimal Minimal impact on the virtual infrastructure during the replication process.I would encourage Veeam customers to examine Veeam-Storage integration offers as they can benefit from: How Storage Snapshot Integration is similar to Veeam Continuous Data Protectionįor customers using Storage Snapshot Integration with a Veeam “Integrated” partner, CDP might not be necessary as they are using their Storage Sub-system resources to perform the snapshots.īy delegating the replication task to the underlying storage hardware for snapshots, it reduces the VMware overhead and achieves near-zero RPOs. It allows reaching a lower recovery point objective (RPO) compared to the snapshot-based replication - near-zero RPO which means almost no data loss. This is possible because CDP is always on and does not create snapshots. Continuous Data Protection (CDP) is built on-top of the vSphere APIs for I/Os and allows VMs to be replicated with near-zero RPOs.įor VMware snapshot-based replication, the RPO is generally set to 15 minutes and with CDP, the RPO could be set to seconds. Veeam Continuous Data Protection (CDP) is a technology that helps you protect mission-critical VMware virtual machines. My focus in this blog will be the last option, CDP.
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