Discussions specific to the Microsoft Hyper-V hypervisor
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Aurock
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Use cases & benefits of Veeam Replica vs Hyper-V Replica?

Post by Aurock » Feb 07, 2019 2:21 pm

Can anyone recommend an article or other resource which compares and contrasts Veeam Replication vs the native Hyper-V replica functionality? I know the difference between the two has been asked here before, but I haven't found a good in-depth comparison of the two. I'm looking for something that explains the best use cases for each product, and the pros and cons of each. Also, something relatively current, as I assume that Hyper-V replica has probably seen some changes since Server 2012R2.

If you have any links to such a reference I'd appreciate you sharing.

Thanks!

HannesK
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Re: Use cases & benefits of Veeam Replica vs Hyper-V Replica?

Post by HannesK » Feb 08, 2019 9:15 am

Hello,
I don't have an article but some conversations in the past and the result was the following (I hope I did not forget anything, feel free to add things):

Pro-Hyper-V:
- lower RPO times (30 seconds)

Pro-Veeam
- file / application restores from replica snapshots
- more flexible scheduling options (30 seconds, 5 minutes, or 15 minutes are the only options in Hyper-V)
- easier failback (failover seems also easy in Hyper-V)
- performance of VM not permanently reduced due to background replication (only snapshot performance impact during snapshot replication)
- one UI / Reporting for backup and disaster recovery

So if you need to go to replications every 30 seconds, then Hyper-V replication is the way to go. For most other use cases, Veeam is the more comfortable / flexible way.

Best regards,
Hannes

Gostev
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Re: Use cases & benefits of Veeam Replica vs Hyper-V Replica?

Post by Gostev » Feb 08, 2019 9:31 am

By far the biggest issue with Hyper-V replica is that it doubles storage I/O for each protected VM, when storage I/O is usually the most constrained resources in virtualization anyway. So, it's not really usable on a large scale.

nmdange
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Re: Use cases & benefits of Veeam Replica vs Hyper-V Replica?

Post by nmdange » Feb 08, 2019 5:05 pm

Another option could be to use Storage Replica on your Hyper-V hosts to replicate the entire CSV to your DR site, which allows real-time synchronous or asynchronous replication, if you need an even lower RPO than 30 seconds.

Aurock
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Re: Use cases & benefits of Veeam Replica vs Hyper-V Replica?

Post by Aurock » Feb 11, 2019 12:46 pm

Thank you all for the responses. I'm amazed that there hasn't been an article or whitepaper thoroughly contrasting the two products.

Hannes - I appreciate the detailed list.

Gostev - Doubling I/O on the primary hyper-v environment would definitely be a concern. I had read about that in an old post, but I thought it may have changed in the 5-6 years since.

Nmdange - While that might be a viable option for some, I don't think it's a good fit in our scenario.

If anyone has other input to share on the benefits of each product, please continue posting, I'd love to read it. I've got to present a recommendation to the boss soon, and any additional info I can use to make a decision and back it up would be very helpful.

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