Zerto vs vSphere Replication

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Zerto vs vSphere Replication (focusing around data replication)

Zerto Replication vSphere Replication
Generally recommended for: Any size vSphere infrastructure Small infrastructures, remote offices, and non-critical applications
Max number of VMs protected per appliance and vCenter Server: 500/5000 500/500
Linked clone and template support: Yes No
Physical RDM and Virtual RDM support: Yes, virtual and physical mode RDMs are supported No/Yes, Physical RDMs are not supported but virtual RDM are supported
RPO range: Seconds 15 minutes to 24 hours
Application consistent?: Supports Windows VMs using VSS and Linux with Application Quesicense Only with Windows VMs using VSS
How VMs are chosen: VMs can be organized into Virtual Protection Groups VMs can be selected individually or multi-select but virtual protection grouping is not available
Automated failback support: Yes No, VMware recommends SRM
Allows you to plan, test, and automate failover and failback: Yes No, VMware recommends SRM
Compression included: Yes No, and neither does SRM
RE-IP addressing of virtual machines: Yes No, VMware recommends SRM
Cloning of recovery sites: Yes No
Point in time recovery: Yes, up to 5 days with standard recovery, up to 1 year with extended recovery using the Offsite Backup feature Yes, up to 24 snapshots
Compatible with vApps: Yes No
vCloud Director integration: Yes No
Snapshot-based? No Yes/No, VMware says that vSR doesn’t use snapshots technology but does use a modified version of CBT, still many of the same snapshot-based limitations apply. For example, vSR uses VM snapshots at the recovery site when recovering to a different point-in-time.

Zerto vs VMware Site Recovery Manager (focusing around automation of disaster recovery planning, testing, and automation)

Zerto SRM (with vSphere Replication)
Provides planning, testing, and execution of disaster recovery for vSphere: Yes Yes
Designed for: Zerto was designed for hypervisor-based replication AND disaster recovery orchestration SRM was designed for disaster recovery orchestration only
Licensed: Per-VM Per-VM
Replication granularity: Per-VM and/or Per- Virtual Protection Group Per-VM or multi-select but virtual protection grouping is not available
Configure consistency groups (virtual protection groups): Yes No
Replication recovery points: Yes, up to 5 days with standard recovery, up to 1 year with extended recovery using the Offsite Backup feature Yes, up to 24 snapshots
Compatibility: Zerto works with ESX 4.0 U1 and above. Zerto can replicate between different versions of vCenter. vSR works with ESX 5.x and above. SRM requires the same version of vCenter and SRM be installed at both sites.
Managed with: vSphere Client Plugin and stand-alone browser UI vSphere Client Plugin
Replication is performed with: Zerto Hypervisor-based replication vSphere Replication
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