Veeam Continuous Data Protection (CDP)
Q: What is CDP intended for?
A: CDP is intend to allow you to have an “up-to-date” replica of your most critical machines, providing granular “down to the second” recovery capabilities for workloads where even seconds of data loss are an issue.
By adding your most important machines to a CDP policy, you will always have a stand-by replica with granular recovery down to the second.
Q: Which license is required for CDP?
A: From our User Guide, CDP is included in the Veeam Universal License. When using a legacy socket-based license, the Enterprise Plus edition is required.
Q: How is Replication with CDP different than normal Replication in Veeam Backup and Replication?
A: Start with reviewing our User Guide on CDP; CDP is able to achieve it’s granular recovery by use of VMware’s vSphere API for I/O filtering (VAIO); Veeam installs I/O Filters into the VMware environment, and VMs assigned to the CDP Policies in Veeam will be replicated “live” based on your policy configuration in Veeam.
Q: When should I use CDP Policies and when should I use regular Replica Jobs?
A: For your most critical workloads where data loss of more than a few seconds/minutes is unacceptable, use CDP Policies in addition to regular backups to protect the workload.
For all other workloads, use regular Replica Jobs for fast recovery.
Q: Can I backup my VMs participating in CDP Policies?
A: For original production VMs: Yes, but wait for the Initial Sync of the CDP policy to complete before performing snapshot operations like a backup.
For CDP Replicas: No, backup operations will be prevented on CDP replicas.
Q: Can I migrate VMs in VMware/with Quick Migration if the VMs are participating in CDP replicas?
A: Both Host and Storage vMotion are supported on the original Virtual Machine.
Only host vMotion is supported on the CDP replica.
Q: What are the system requirements for a CDP proxy?
A: Our System Requirements are available in the User Guide
Q: Do I need a dedicated network for CDP?
A: While not a requirement, CDP shows the best performance on a 10 Gbit or faster network with MTU 9000; a dedicated network is recommended to avoid other workloads impacting CDP operations.
Q: Can I do manual snapshots on machines participating in CDP?
A: As of Veeam version 12.1.1.56, you can take snapshots of VMs participating in CDP.
Q: What Recovery operations are possible with CDP Replicas?
A: You can perform Failover and Failback operations, as well as GuestOS Item restores from CDP Replicas
Q: What is CBT Mode with CDP? Why is the CDP processing slower in CBT mode?
A: CBT Mode indicates that there is an issue impacting the transfer of the VM changes, such as network interruptions, underperforming CDP proxies, etc.
CBT Mode will typically self-resolve and return to live syncing if the interruption is temporary in nature; if the CDP Policies continually are in CBT mode check the network connectivity between the source/target VMware infrastructure and the CDP proxies, as well as the CDP proxies for any issues.
Q: What is CDP intended for?
A: CDP is intend to allow you to have an “up-to-date” replica of your most critical machines, providing granular “down to the second” recovery capabilities for workloads where even seconds of data loss are an issue.
By adding your most important machines to a CDP policy, you will always have a stand-by replica with granular recovery down to the second.
Q: Which license is required for CDP?
A: From our User Guide, CDP is included in the Veeam Universal License. When using a legacy socket-based license, the Enterprise Plus edition is required.
Q: How is Replication with CDP different than normal Replication in Veeam Backup and Replication?
A: Start with reviewing our User Guide on CDP; CDP is able to achieve it’s granular recovery by use of VMware’s vSphere API for I/O filtering (VAIO); Veeam installs I/O Filters into the VMware environment, and VMs assigned to the CDP Policies in Veeam will be replicated “live” based on your policy configuration in Veeam.
Q: When should I use CDP Policies and when should I use regular Replica Jobs?
A: For your most critical workloads where data loss of more than a few seconds/minutes is unacceptable, use CDP Policies in addition to regular backups to protect the workload.
For all other workloads, use regular Replica Jobs for fast recovery.
Q: Can I backup my VMs participating in CDP Policies?
A: For original production VMs: Yes, but wait for the Initial Sync of the CDP policy to complete before performing snapshot operations like a backup.
For CDP Replicas: No, backup operations will be prevented on CDP replicas.
Q: Can I migrate VMs in VMware/with Quick Migration if the VMs are participating in CDP replicas?
A: Both Host and Storage vMotion are supported on the original Virtual Machine.
Only host vMotion is supported on the CDP replica.
Q: What are the system requirements for a CDP proxy?
A: Our System Requirements are available in the User Guide
Q: Do I need a dedicated network for CDP?
A: While not a requirement, CDP shows the best performance on a 10 Gbit or faster network with MTU 9000; a dedicated network is recommended to avoid other workloads impacting CDP operations.
Q: Can I do manual snapshots on machines participating in CDP?
A: As of Veeam version 12.1.1.56, you can take snapshots of VMs participating in CDP.
Q: What Recovery operations are possible with CDP Replicas?
A: You can perform Failover and Failback operations, as well as GuestOS Item restores from CDP Replicas
Q: What is CBT Mode with CDP? Why is the CDP processing slower in CBT mode?
A: CBT Mode indicates that there is an issue impacting the transfer of the VM changes, such as network interruptions, underperforming CDP proxies, etc.
CBT Mode will typically self-resolve and return to live syncing if the interruption is temporary in nature; if the CDP Policies continually are in CBT mode check the network connectivity between the source/target VMware infrastructure and the CDP proxies, as well as the CDP proxies for any issues.
Statistics: Posted by david.domask — Apr 25, 2024 11:14 am