Virtualization Technology News and Information
JetStream Software CTO Shares DR Preso Highlights by Partners Microsoft and NetApp at Cloud Field Day


We recently sat down with the team from JetStream Software, a software development company based in San Jose, California, to publish a series of brief summaries from their presentations at Cloud Field Day on cloud-native disaster recovery (DR) for vSphere environments.

So far, we heard President and co-founder Rich Petersen's perspective on the economic and operational benefits of using JetStream for DR in the cloud, here. Then, we took a deep dive with Senior Solutions Architect Dennis Bray on use case demos for JetStream DR, here.

Now, in this final Expert Q&A, CTO and co-founder Serge Shats shares highlights of Cloud Field Day presentations by integration partners Justin Jakowski, Azure cloud infrastructure solutions professional at Microsoft, and Prashant Desai, senior director of product management at NetApp.

To replay the JetStream and partner presentation videos in full, please visit

VMblog: Hi Serge. Can you give us a brief intro on your role and expertise at JetStream?

Serge Shats:  Sure, I am Serge Shats, and I am co-founder and CTO of JetStream Software. I have 25-plus years of experience in system software development, storage virtualization, and data protection. I have been deeply involved with storage and data protection in VMware environments, and together with my engineering team, we were the co-development partners with VMware in the development of VMware's IO filters API (VAIO). Previously, I was co-founder at FlashSoft, which was acquired by SanDisk in 2012. Prior to that, I served as a chief architect at Veritas, Virsto and Quantum.

VMblog: Can you explain why Microsoft and NetApp joined JetStream at Cloud Field Day?

Shats: Very simply, both companies are very close partners, and most of our deployments include AVS and ANF, so for people to understand what a complete JetStream DR solution looks like in the real world, it made sense to have them participate rather than having just us talking about them.

VMblog: You had Justin Jakowski introduce Microsoft Azure VMware Solution. Why?

Shats: A complete DR solution isn't just our software. It's a combination of the customer's disaster recovery policy and implementation, the DR software, and the recovery environment infrastructure. Justin meets with Microsoft AVS customers pretty much every day, so he is the best person to describe the physical specifications of the AVS infrastructure. For example, he could tell the delegates how AVS supports ExpressRoute, so the continuous replication of data for the purpose of continuous data protection (CDP) will have ample bandwidth.

VMblog: That makes sense. But did he only talk about JetStream?

Shats: No, he started with a broad description of the technical specifications and use cases for AVS. He did say that among the top use cases - cloud migration, data center expansion, and disaster recovery - the DR use case is probably the second greatest use case for AVS, as enterprise customers with on-prem data centers don't want to maintain failover data centers.

VMblog: Did he discuss anything that demonstrates the close integration between DR and AVS?

Shats: Yes, he did. He pointed out that JetStream DR provides run commands so that the software can be deployed through the Azure portal "just like any other Azure service." That's something we worked on quite a bit with the AVS engineering team at Microsoft. It means that the customer administrator, even with fewer privileges than he would have in his own data center, can still deploy and configure the JetStream DR software in Microsoft AVS on his own, without having to request special assistance or access from a Microsoft  AVS administrator.

VMblog: That's great. Let's talk about NetApp. Dennis mentioned that ANF provides a means of giving better RTO than just keeping data in the Azure Blob Store.

Shats: Yes, from our perspective, that's the key benefit. But ANF has other use cases, and Prashant made sure that the delegates heard about those as well before diving into the DR use case. In particular, he talked about being able to maintain a large amount of data in AVS, even when the vSphere cluster is quite small, such as a DR pilot light cluster comprising just a few VMs.

VMblog: Did Prashant give any concrete examples of ANF being an especially good fit for DR using JetStream in AVS?

Shats: Yes, one interesting characteristic of ANF is that it has three performance tiers; obviously, you pay more for better performance. In the DR use case, he said that, on an everyday basis, you can continuously rehydrate your data into ANF at the standard performance level, which is the least expensive tier. Then, if an incident occurs and you have to fail over into AVS, you can switch to a higher performance level while your failover SDDC is serving as your production site.

VMblog: Did Prashant share any highlights about the relationship between JetStream and NetApp?

Shats: Yes, he mentioned that both ANF and JetStream address a common set of enterprise customer requirements, including high performance, which in DR means near-zero RPO and near-zero RTO. He said it was a "very quick and easy decision for us to come together, to integrate a solution, test, qualify, and make it available for our customers."

VMblog: Serge, one last question: since there's a lot we haven't been able to cover, where would someone go next to learn more about using JetStream DR with Microsoft AVS?

Shats: Well, a good place to start is the technical introduction at Microsoft. Start there, then contact us at, or if you're a Microsoft customer, ask you Microsoft account manager. Believe me, they know us pretty well.

VMblog: Well, Serge, I want to say thank you for explaining why partners like Microsoft and NetApp would join you in your Cloud Field Day session. From the perspective you've given me, it makes a lot of sense for the three of you to do this together.

Serge Shats: Thank you. It's been my pleasure to speak with you.


Published Wednesday, July 19, 2023 7:31 AM by David Marshall
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