VMware and Microsoft both offer virtual machine replication capabilities. VMware offers vSphere Replication as a no-cost component that is included with most vSphere licenses. Similarly, Microsoft has integrated replication capabilities in Hyper-V, with no extra licensing costs.
By submitting your personal information, you agree that TechTarget and its partners may contact you regarding relevant content, products and special offers.
Both replication products are based on the use of changed block tracking. When a block is created or modified, it gets replicated to a secondary location. This allows a standby copy of the virtual machine (VM) to be retained at a secondary location.
Microsoft and VMware also allow you to adjust the replication frequency (although Microsoft introduced this capability only in Windows Server 2012 R2). The more frequently the replication cycle occurs, the less data will be lost in the event that the replica has to be activated.
On the other hand, there are also advantages to using longer replication times. Longer replication frequencies are well-suited to slow or unreliable connections because as the replication frequency increases, so too does the time-out period. This makes short losses in connectivity much less problematic. Long replication frequencies also make it easy to maintain a lagged replica that allows the organization to easily revert to a VM as it existed at an earlier point in time.
Hypervisor-based replication vs. traditional replication
Learn more about hypervisor-based replication and how it compares with other software-based replication, in this Expert Response from Brien Posey.
Learn replication best practices for use with backup
ESG's Jason Buffington discusses replication best practices for using with backup, in this Expert Answer.
Using snapshot and replication in your data protection strategy
Analyst Jason Buffington of ESG discusses data protection strategies using snapshot and replication, in this Expert Answer.
Dig Deeper on Backup for virtual servers
Related Q&A from Brien Posey
IT can take a few steps to make the move to Windows 10 easier on users, including considering an in-place upgrade and holding off on any other major ...continue reading
When trying to get to the bottom of virtual desktop problems, IT should turn to root cause analysis tools from vendors such as ControlUp and Lakeside...continue reading
Expert Brien Posey explains how hyper-convergence can help healthcare sites better use desktop virtualization, including for storage and scaling ...continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.