StarWind Virtual SAN Reviews

We use the StarWind Virtual SAN software across two storage nodes to create redundancy for our cluster storage. 

Installed on two storage servers, StarWind's Virtual SAN handles the replication of our cluster storage between the two in separate server rooms across the site. 

We have five compute nodes connected to the storage nodes, which we run Hyper-V; the VMs are all located on the cluster storage nodes yet physically run on the compute nodes. 

The compute nodes are split in two, with two in one server room and three in another, with room to add more compute nodes if needed. 

Migration of VMs is seamless and improved from our previous solutions.

Our previous SAN solutions were outdated and had several issues due to age.

Looking for a change, we found that all the reviews and people we spoke to about StarWind said that the software just worked perfectly. All we really wanted was a system that once it was set up that just worked. And that's exactly what we have found to be the case in StarWind's Virtual SAN. It has been excellent; we monitor the replication health via the software and that's about it. There are no issues so far, and, like each review we've seen, we would highly recommend StarWind Virtual SAN.

StarWind's Virtual SAN handles the replication of our cluster storage
between the two storage nodes in separate server rooms across the site. 

We have five compute nodes connected to the storage nodes, which we run Hyper-V, and the VMs are all located on the cluster storage nodes. They, however, physically run on the compute nodes. The compute nodes are split into two with two in one server room and three in another. There is also room to add more compute nodes if needed.

Migration of VMs is seamless. It's improved from our previous solutions. The fact is that once it was set up, the replication works perfectly, and we haven't had any issues since installation.

The fact that we can expand our storage and add on to our compute nodes easily and how amazing the StarWind technical support team is really adding value to our purchase.

We don't really have any issues with this product. 

StarWind has a great technical support team that helps with the installation and has ironed out any issues we had early on. 

The price was perfect, as we didn't have to shell out for new SAN servers. We found that StarWind's Virtual SAN was a cheaper solution to install on two storage servers than buying a new dedicated SAN server.

Due to the fact our old SAN was no longer supported and out of warranty, finding that StarWind's technical support team is so incredibly helpful and knowledgeable has been amazing.

There are no negatives or improvements that we can think of at our current stage.

I've been using the solution for four months.

The software seems to be completely stable; we have had no issues with the software itself and if a compute or storage node has gone down, the redundancy has been great, we don't even know if there ever was an issue. 

With the way we are set up, we only need two storage nodes that we are licensed for, and we can expand the storage on those nodes and add it to our cluster storage with no additional cost. Compute nodes don't need to be licensed, so we can have as many as we'd like and attach them to our cluster storage.

Customer service and support were amazing. They offer quick responses and are  very helpful and knowledgeable. 

We had them look over our setup after the demo and got help with configuring the iSCSI connections to the storage nodes. We also had the same technician throughout, so he knew our system and setup.

We used NetApps SANtricity for the past 10+ years. The System was old, outdated, and out of warranty. Our support contract ended with them last year, so we needed a new solution with support and better software.

Most of the setup was easy for our environment; the only issue we had was with setting up iSCSI connections from the compute nodes to the storage nodes, however, the technical support team helped with this.

We went through a vendor and initially spoke directly with StarWind to do a demo and talk us through it.

The setup costs depend on how many nodes you need.

One of the main reasons we went with StarWind was the pricing. It was cheaper for us to use our existing servers and install the Virtual SAN software and upgrade to SSDs than buy a brand new SAN server from other providers. 

We trialed the StarWind Virtual SAN software for a few weeks and quickly decided on the product.

We looked at other solutions from HP, Barracuda, Netapp, and Azure HCI.

If you trial the software, you can upgrade from the trial to the full version without any disruption or reconfiguration. StarWind Technical support is outstanding. They were extremely helpful throughout the trial, setup, and during our transitioning period.

We have used vSAN as an SDS storage solution with fiber channel JBOD chassis as hardware and integrated the SAN with HyperV to supply storage to VMs. 

The setup was required to expand our storage capabilities, and when looking for solutions, we wanted an SDS system for easier management of new disks and disk failures. 

Our system, therefore, consists of many disks with varying quality, which for us is the true benefit of vSAN since we now can trust different levels of degraded disks and still stay certain that we will not lose data.

We have been able to use more on-prem hardware to reduce cost and also use old disks that we do not trust enough for ordinary RAID or usage.

The storage system has been a great expansion of our capabilities to store large amounts of data since we previously relied on cloud storage which became exponentially more expensive as we expanded our data collection and our pipelines which required more virtual machines and hence more storage. 

With the web GUI available, it also became easier to monitor disk health instead of always logging in to the respective storage servers and checking status, which sometimes only was available during boot in raid controllers.

For us, the SAN solution needed to integrate well with HyperV since that is what we currently use - although we are planning to add an ESXi hypervisor which made vSAN optimal (since it is hypervisor-agnostic and we can select whatever hypervisor we want in the future without the need to redo our storage system).

Furthermore, we have a lot of fiber channel disks lying around, which we had no good use of. Therefore vSAN was great since we could easily integrate these into our storage system and also distribute block storage via fiber channel to the hypervisors and other storage-requiring servers.

The setup and documentation for the installation with the free version could definitely be improved. It took some time to get it up and running; however, when running, it worked well. 

The setup is done in PowerShell and requires quite some knowledge about how to navigate windows through Powershell. Fortunately, there were scripts available to help out. That said, the documentation was not that thorough in helping me understand the scripts. This is definitely room for improvement since it would be nice to quickly get up a demo of the SAN running to evaluate if it works as one expects, which it did in our case.

I've used the solution for two months.

The scalability is great. It integrates with all hypervisors, and disks can easily be added.

It was far from the easiest implementation; however, we got it working.

We implemented the solution in-house.

We looked into TrueNAS and Windows storage spaces.

Our company needed a Virtual SAN solution that would fit perfectly into our private cloud architecture based on Windows Server virtualization (Windows Server 2016/2019/2022) and Hyper-V without having to substantially modify its composition. In this case, it has allowed us to provide storage with geographic clusters for the evacuation of resources in the event of a disaster, allowing data to be migrated between the different delegations and guaranteeing that we comply with current regulations regarding data protection, as well as ISO 27001 and ISO 22301.

The StarWind Virtual SAN product has allowed us to improve the availability of our services, as well as their security. On the other hand, it has allowed us to make these improvements without having to make a large increase in investment, as could have happened with solutions such as those from VMWARE, Dell, etc. In this way, we have also achieved clear profitability and an immediate return on investment (ROI). Of course, it has allowed us to align with the business continuity management strategy using geographic clusters for the evacuation of resources.

The StarWind support team is, without a doubt, the best part of this product. The engineer assigned to us for the implementation showed great involvement and a willingness to work and share his knowledge with our team, which was great and smoothed out the resistance to change as well as the learning curve. The support team is available to solve any problem efficiently. The team is always aligned with our needs, and they try to give maximum performance to the vSAN. So far, the solution has shown great stability with no noticeable issues. The ease of use has helped our juniors.

The only point they should improve is the amount of documentation available for the user, especially in the first preliminary phase in which we were testing the product on our own. This problem is really solved when the team of engineers is assigned to the project since, with the willingness of the support team to provide information when required, it is very easy to move forward and solve these deficiencies. On the other hand, perhaps it can be said that it would be interesting to publish a greater number of pre-generated scripts.

I've used the solution for three years.

So far, we haven't had a noteworthy problem to attribute to the solution. We only had initial problems due to the operation error of the junior technicians while they were learning to use the tool.

The scalability for us is perfect. The solution allows us to work elastically, responding to changes in the requirements of our infrastructure according to demand. In addition, it scales easily and quickly.

In my experience of over 20 years in the IT industry, I've noticed that they provide one of the best services available today. They are very involved and proactive technicians.

Positive

We evaluated other solutions, however, it is the first one that we implemented.

In terms of the initial complexity, it would come from the previous tests in which we did not have support or all the documentation. As soon as we contracted the software and had support, everything was easy, and we had an engineer that was really valuable.

The experience of the team that collaborated with us in the deployment is undoubtedly very high. The desire to work and the availability to share knowledge are points that, without a doubt, must be valued very positively.

Replacing the previous model with a vSAN model has allowed us significant cost savings. Even if we consider the license, it will not cost much to amortize the investment.

The investment is really low compared to other options, and the stability and flexibility guarantee the security of the investment.

We looked into VMware, Hyper-V, and some other options.

The solution is really easy to implement, manage and maintain.

I used the software as a virtual SAN solution. When I tried it for the first time, I found it easy to use and working perfectly. The most important thing is that the vendor keeps developing and enhancing the solution to include more robust features.

I have three servers running VMware ESXi and used the solution as a SAN for the VMware Cluster by connecting the servers as ISCSI targets to the StarWind vSAN using a 1GB network connection peer. That helped me to run my application with peace of mind.

I am currently running servers with a hosted application for my business, and I had a problem having them online all the time thanks to of server maintenance and updates. 

That's why I used a vSAN to avoid buying a hardware SAN and use my existing servers only. The software improved my productivity by allowing me to have high availability and fault tolerance in virtualization.

I plan to invest in NVME disks where the software provides perfect integration to speed up the systems and get cache capabilities.

We like the ease of management. The management was very easy and I was able to find all that I need in the software dashboard.

The ISCSI is good. The connection using software made it easy to me to connect my servers without extra investment in hardware SAN.

I like the vCenter plugin. This allows me to monitor the SAN performance in the VMware web interface.

It offers good fault tolerance and high availability. I can update or restart the physical server without worry.

It's got great deduplication and compression. I am planning to use this feature when investing in new NVme disks.

They need to invest more in the support documents for real issues happening when integrating the solution with the hypervisor. Also, they need to provide how-to videos on social video networks about the setup, upgrades, and migration from real hardware like HPE, DellEMC, or Fujitsu to vSAN solutions.

They need to make it easy for the customers to find a solution for any error happening during migration or setup. That way, it will be more accurate and have fewer errors.

We've used the solution for ten years up until now.

We use the solution in order to share storage across multiple virtual server hosts. We are currently running VMWare ESXi with vCenter across two locations and with a total of 8 ESXi Hosts. 

We use a storage server with a 30 TB RAID10 Array which is being shared out across all servers. We are using a mixture of Dell R730XDs, and Dell VRTX with M620 Blades, all across a 10GB server backbone and a 1GB End user network. The two locations are 20 miles apart, linked by an MPLS provided by AT&T. 

We currently use Synology for our backup appliance.

Before implementing StarWind Virtual SAN, we would have to copy over every single virtual hard drive file before we could migrate and VM. With Virtual SAN, though, we can use a shared Storage volume and rarely have to move files. This has allowed us to expand our virtual server host threefold and allows us to have a more robust disaster recovery plan. I am now able to do Migrations during the work day which has saved me from having to do things like this overnight. I could not be happier with my shared storage solution.

I have found the graphical user interface to be the most useful thing about Virtual SAN. Most other shared storage utilities either do not have a graphical user interface or a poorly laid-out one. Every single wizard I have used in Virtual SAN is easy to follow, has clear labeling, and just makes sense. There is also an overabundance of documentation every step of the way if you run into any questions about the lingo or what this checkbox does. I could not be happier with my purchase and decision to use Virtual SAN.

This is a tricky question since I do not have many issues with StarWind's Virtual SAN product. Every step along the way, if I ever had any questions, there was either documentation to answer a question, or customer service was able to help quickly. 

There is one issue as far as licensing goes and that is a lack of documentation online by users when transitioning from the free version to the paid version, or vice versa. Customer Service can take care of the issue though without any issues. That's about the only issue I can think of.

I've used the solution for two years.

I had one issue with the product, however, reinstalling solved the issue, and it was nothing crazy.

The product is all about scalability. I have no concerns about future company growth and this solution.

The few times I reached out to technical support, my issues were solved in minuets, not hours.

Positive

I did not use a different soltion. 

The setup wizards are amazing!

I did the implementation myself.

We witnessed an ROI in six months.

I was intimidated at first about the setup, however, it is super easy.

I did evaluate VMware vSAN.

I'd advise new users to give the free version a try to see if the product is right for them. That's what I did, and I am so happy with the solution.

A customer wanted to build a test environment for his VMware. However, he was running out of financial resources. 

I suggested this product (vSAN in particular), and he was quite happy with its features. Later, he decided to convert his test environment into production using the same StarWind products, and to date, he is a happy customer. 

After this success story, I have referred many of my customers to use this product; no complaints so far. 

Happy customers mean good business, and the company is progressing well, so I'm enjoying the benefits as well. 

StarWind vSAN is easy to deploy and administer. It's a user-friendly solution. We are integrators and deployed vSAN from StarWind with multiple clients and all are happy with its performance. 

Creating the new server and deploying it to be used by hypervisors over ISCSI is good. It is very easy to configure. 

I'd prefer it if a remote console was provided. That way, the customer doesn't have to log in to a specific server where the product is running. That could be very beneficial. 

I've been using the solution for four years.

I have deployed this product at multiple locations (for clients) and have had no complaints so far. It is a fully stable product. 

The scalability is relatively easy to manage on StarWind. When having real hardware, it's a bit complex to scale, yet way easier with StarWind than with other options.  

Customer service is easily available by email. I have not tried by phone. However, it's my understanding that they would be of great help if I reached out that way too.  

Positive

I have worked with NetApp, Lenovo, EMC, and some other brands as well for storage with VMware and Hyper V. 

StarWind is easy to manage as compared to these and is a cheap solution with very similar features. 

The initial setup is straightforward. Any IT professional can handle it after some studying and training from Youtube. 

After reading the help material and watching some Youtube videos, I deployed this product myself. 

A happy customer is the best ROI. I have many happy customers using StarWind. 

It's quite easy to deploy this product. 

Any IT professional can read a few documents and watch some videos and maybe go to Youtube to learn about deployment and management. It's a very simple and user-friendly product. 

We exclusively use StarWind vSAN for our virtualization data stores. We have:

VMware: 50 physical hosts, 500 virtual machines
Hyper-V: 10 physical hosts, 100 virtual machines
Internal SAN: 250 users, 50 shares
Disaster Recovery: off-site replication

We currently have 75 data stores across 24 servers.

Primary Performance Cluster:
Eight 72 SSD chassis and a 512 GB RAM cache
A-A-A (three-way high-availability) across servers

Primary Storage Cluster:
Four 36 HDD chassis and a 512 GB RAM cache
A-A-A (three-way high-availability) across servers

StarWind vSAN has allowed us to grow rapidly while still providing flexibility and reliability. We have not had a complete outage since migrating in 2012. I cannot recommend them enough.

We have completely rebuilt and upgraded our storage infrastructure five times. We could migrate data seamlessly in our live environment without downtime.

We primarily use Supermicro hardware for our storage servers, although not exclusively.

Having a solution that is flexible enough to synchronize between many different hardware vendors is extremely valuable.

The three-way high availability (A-A-A) is very useful.

I have never found another product that can provide this redundancy and performance.

We have a complex and demanding environment that requires the ability to scale out while in production. We have utilized StarWind to achieve those needs.

We were the victim of a ransomware attack that was devastating. StarWind ensured we were completely unaffected and it preserved our virtualization environment. Our SAN was completely encrypted, but with off-site asynchronous replication, we were able to restore all our files quickly.

There is no IPv6 support. That is our only issue at this time.

The support team is exceptional, and we have always been able to overcome any of the technical issues we have had. I cannot recommend them enough!

Our wish list includes:

• A Linux install package for vSAN (not just a VM)
• Central management that supports all of the StarWind services and can provide a network operations level dashboard with customizable alerts (possibly with a mobile app companion with push notifications)
• IPv6 support
  

I've used the solution since 2012.

Scalability is one of the things we absolutely love about StarWind. We have scaled from two servers providing 20 TB to 24 servers providing 2 PB.

I have talked to all levels of support over the years, including the developers. They have an amazing product and an exceptional support team.

Positive

We did use something else and originally switched as no other solution at the time had real high availability. Most products just offered fail-over options.

The initial setup was fairly straightforward.

We have evolved into a much more complex environment over time.

We handled the setup in-house.

We have been using StarWind since 2012. Our ROI was seen within the first six months.

Users should know that licensing can be reallocated as you retire old servers. I recommend always buying unlimited licenses as needed unless you think you can utilize their data center license.

We looked into:

• Open-E
• HPE
  
• VMware
• Microsoft

I'd advise others to download their evaluation and test it in multiple scenarios. You will fall in love with their product!

This solution replaced some old IBM DS 3400 SANs that we had for many years and we used it to build new, highly available storage. Most of our servers use Hyper-V, and this solution is the storage backbone for our Hyper-V Clusters.

We use the virtual SAN piece of the solution because we're not hyper-converged, so I value the highly available storage that all of my clustered servers can see and utilize.

I had an occasion last year where I needed emergency support from them, and the support we normally pay for didn't cover it. I had to buy upgraded support, which was not a problem, but it wasn't a prorated amount, so I paid for the support, the full upgrade, but I only got a couple of months out of it because it was only good until renewal time. That kind of thing should either be prorated or extended past the renewal time, so whenever you buy it, you get a year's worth of upgraded support. That's my only real problem with them. Otherwise, I think they're pretty good.

I have been using this solution for five years.

The solution has been stable.

The solution is scalable. The version I have has unlimited storage, so as long as I have the space in my servers to add storage, then the solution will support it.

The initial setup was easy, but mainly because we didn't do it ourselves. We had the support team work through it with us when we set it up, and just by working with their support, we got everything up and running. Once we had the hardware set up and ready to go, it took a half a day or so to get everything configured with the install. Then, because of the size of our volumes, it took several days for them to sync, but we did the initial setup in a day.

Once the solution is set, you kind of forget about it because you don't need to touch it that often. Anytime I've needed to get back in there and add more volumes, or if I have any problems, I just call their support team, and we work through it together, so it's been pretty easy. I imagine if someone had to deal with it daily, it would probably be pretty easy to understand and work with, but we don't touch it that much.

ROI is difficult to quantify because we used this solution to replace really old IBM SAN hardware. We can do everything that we need to do with it, and I've had it five years and other than one time that I had to upgrade support, I've had to pay nothing extra. I consider the cost of ownership low, because anybody who has to have on-premises storage, especially if you want to be compliant with backups, needs something like this and I'm sure there's other solutions out there that do it, but this is what we chose and it's worked perfectly.

I have the Enterprise version, which has unlimited storage, and we have two nodes, or two servers where all the storage is replicated to each other. For two nodes, it cost us $10,000, and we spend $2,000 a year on support. If you want higher tier support, that will cost a little more.

To any who are considering this solution, I'd say that I've been really impressed with it so far. I think it's pretty great, actually. It does exactly what we need it to do, and it does it well, so I would recommend it. Plus, the support has been very good.

I would rate this solution as a nine out of ten.

We use the solution for HA storage for HVs.

We are an SMB that can't be bothered paying tens of thousands of dollars just to get a proper HA storage for a two node failover cluster. Therefore StarWind's vSAN was financially attractive from the start.

The reviews you can find all over the web incentivised us to research this solution deeper (e.g. just check all the great posts vom Kooler on Stackoverflow), leading to us actually implementing it.

We were coming from an S2D implementation which already gave us a ridiculous amount of headaches (bugs, performance stalls, "we know what's best for you" automatisms) in addition to being slow and annoying to administrate/debug while also having the most annoying documentation ever to be created by mankind. These solutions rush out some code and ship it and never fix anything (but break it every few weeks with patches).

The initial tests were easily implementable (without begging some sales folks for a POC, due to a free version being available) as well as proper documentation that you actually like to read due to it having been typed by a tech (and that also isn't behind a pay/registration wall).

As close to perfect as the documentation is, do read the blog posts to the two-node HA setup as well. Some minute details were only found in those.
There are no showstoppers, and not many things in general, just a few hints here and there.

The install itself is easy as pie. The config file is properly documented (you can do most things via GUI, just some things are set in the main config file).

Do help yourself to the iSCSI Powershell commands (Windows defaults from MS) when implementing. It is way more attractive than clicking via GUI.
(New-IscsiTargetPortal, Connect-IscsiTarget etc.)

Some things must be done via GUI though, since iSCSI has been implemented way back and "making scripting available" wasn't that widespread for developers back then. This being a Microsoft topic, not StarWind though. They would have had to make their very own iSCSI implementation otherwise.

For testing, you should use a proper tool like https://docs.microsoft.com/en-...
since "Windows copy from within the VM running on the test setup" can be flakey.
Not as in "the results aren't valid real world performance if you check with the Windows copy within a VM" but rather "non-scientific" since you can't extract much data from that process aside from size/time.

There is a visual bug with a specific part of iSCSI. It's Microsoft's fault, and, as usual, has never been fixed in over 15 years. Just don't panic if you experience it.
https://www.dell.com/support/k...
https://social.technet.microso...

Price-wise this is very attractive. The support is great (little that we needed due to the good docs) and I would expect you to reach a very good performance just like we did.

The next-best solution from my research back then - that you would actually want to use, so no S2D or anything - would have started at 7X or 8X the price. Since StarWind's solution has served us very well over the last two years already, I would recommend it.

To respond to the "how it has improved our organization," in a nutshell: it has provided very stable and performant storage-level HA which allows for live failover of VMs (as long as the compute doesn't die as well).

We like the ability to be installed and used on the same host, so we get the max performance possible.

It is easy to set up and maintain, resulting in a happy admin and low TCO/good ROI.

It offers good performance and stability and also makes for a happy admin.

It provides HA for our failover cluster storage where anything can go wrong up until compute, the thing still chugs along like nothing ever happened.

The upgrades are also very easy to implement. It's basically "click click click" once everything has been shut down and you're back up really quickly.

Feature-wise we are only waiting for the release of a "planned disaster" feature that would allow us to patch a hypervisor node without having to take the full storage offline.

ATM (20220609) is still necessary, since taking a node offline without properly activating the maintenance mode on the vSAN would trigger a full sync of the vSAN nodes.

This is fine and a good thing since it ensures data integrity. However, there is something in the making that would ensure integrity without a full sync after a node goes down, which, as stated above, one could "abuse" to patch (and boot = take down) the hypervisors during business hours 😁

Other than that, the thing is rock stable and chugging along without issues.
We are an SMB so we "only" have around 50 VMs on our FO cluster, which is a medium load for SSDs.

If you plan to go more to the "max" side of performance use, do proper testing!

I've used the solution for two years.

It's rock-stable.

So far, we only had visual issues in a specific place due to Microsoft being a PITA and never fixing any bugs they bring in (this one being over 15 years old).

It scales very easily.

Depending on your setup, their actual SAN might be a better fit for you, however, that's for your very specific case to decide.

We really only had contacted the support for the final checkup after setting it up ourselves, so that they could verify everything is running as it is supposed to.

That was great, so our experience has been great overall.

Positive

We previously used Microsoft S2D. It had bad documentation, offered bad performance, and had bad GUI and bad CLI.

The setup is very easy, and they offer very nice documentation and blog posts.

We did the implementation all in-house, self-taught by their great docs.

Since our HVs already run with Windows DC we had S2D included in the cost.

However, the operational costs were high. I'd easily say the invested time over a year with S2D would be $20-30K while StarWind's vSAN now took like $500-750 (yes, less than $1K!) over two years. 😎

Even if you add the license cost (which is cheap even with our 3-year premium support package) it is a no-brainer.

There is the "invisible" cost of you reading the docs, however, that comes with every solution. At least with StarWind, you have tech-to-tech documentation that you can actually use.

The pricing is very fair!

We looked into VMware and others. They usually had a way higher cost or worse performance or worse GUI/documentation, or all of those things together.

I'd advise others to use the free license to test it. The doc is also public. This is the way.

The primary use case we had was covering with StarWind vSAN was to provide customers with a redundant solution that was able to guarantee flexibility. In terms of physical storage, we can aggregate in order to provide a redundant, replicated solution. At the same time, we were looking to keep the total cost of ownership as low as possible as the customer may have multiple venues to cover with the same schema of the system. 

With StarWind vSAN we were able to set a simple 2-node cluster leveraging the internal disks to create a replicated vSAN - eliminating any SPOF at a reasonable price.

StarWind, compared to other competitors in the market and in the same range of price, allows us to design system plans with the resilience of enterprise-grade storage, however, we are able to use smaller storage even at the consumer level. This makes us more competitive as the total price of the offered solution was comparable to a usual non-HA system yet with all the resilience features that StarWind is bringing with its product. This combination of low price with enterprise-grade HA features is key in the market.

There are tons of valuable features that StarWind vSAN brings to the table. It is very difficult to choose one to be raised as a role model.

The unique capability to create a vSAN on a 2-node cluster while all the other competitors will require users to have at least an external witness to set the Virtual SAN.

The service team is very collaborative and skilled and followed us from the implementation to the go-live of the system constantly.

The license price is one of the cheapest in the market.

The price is the key aspect (yet not at the expense of reliability and stability). It is not so easy to find an aspect where StarWind can improve their offering or any additional feature they can include for the price they ask. 

I know that StarWind can scale out easily, however, I wasn't in the position to test that. I would like an automated installation/configuration despite the fact that their service is very collaborative, a customer should be able to deploy the solution by themselves. 

I've used the solution for more than one year.

Unfortunately, I wasn't able to test the scalability aspect.

As it was driven by StarWind reps, it was running very smoothly.

There's nothing to finger point on the StarWind team. They were great.

We also evaluated StorMagic, VMware vSAN, and Datacore.