VMware vSAN Room for Improvement

Yves Sandfort
CEO / Cloud Evangelist at Comdivision Consulting GmbH

Stability can be improved. Adding all these new features is nice, but we are now at the level that most of the features you need in production are there. The stability, not from a day-to-day operations' perspective, but more from a supportability perspective, because currently some of the support scenarios require you to completely evacuate hosts or the complete cluster. That sometimes can be a stretch. This would clearly be an improvement if the support teams were given additional tools to make that easier.

Upgradability could be a bit easier sometimes. We are now where vSAN can be updated without ESXi, but there is still enough dependency. So that would be good if that actually would uncoupled even more.

Dashboards are there, and we use vROps as well. So, we have all the beauty of the capacity planning and everything over there. That's not really something where we need a lot of other things. 

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CEO at a tech services company with 201-500 employees

If one node out of your ten nodes fails, it takes a lot of time to replicate and rebalance VMware vSAN. This time can be reduced. When a node fails and the data is not accessible, vSAN has to be rebalanced to make the redundancy level of two again. However, if it is taking a lot of time and any other hardware fails during that time, then we have a problem. Two disk failures mean that all data will be lost, and we may have to recover it from the backup. So, the number of threads that run to do the rebalancing could be more so that the time taken to make it fully redundant again is not so much.

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Vishal Bhatia
Trainer/Consultant at Koenig Solutions Pvt. Ltd.

There's a lot that can be done to segregate. That may be available now in vSAN 7, I suppose, however, the deduplication and compression can be segregated. 

Increasing the classifiers to maybe more than 64 could be done in future releases.

The file service is something that can be integrated.

Something more could be done to integrate from a monitoring perspective right in the console itself so that we have deeper monitoring capabilities.

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Learn what your peers think about VMware vSAN. Get advice and tips from experienced pros sharing their opinions. Updated: March 2021.
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Yousaf Khan
Head of network and web at a maritime company with 501-1,000 employees

We are looking for more load balancing at an application level.

For the hardware level, we're looking at some other solutions. For example, we're checking out Nutanix and Sangfor. 

We've had issues with load balancing. Suppose, for example, if the physical ESXi host is down, the virtual machine you have handle manually. We need to have load balancing and RAM and processor balancing also.

Hardware load balancing is available on the enterprise version of the solution, however, it's extremely expensive and therefore out of our budget.

In general, we're looking for more features. This solution doesn't really offer us that much.

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IT Infrastructure Specialist at a computer software company with 51-200 employees

The solution could maybe improve failure protection. The failure protection for vSAN is very expensive sometimes within the clients. The customers want to be able to tolerate two or three nodes in failure. However, sometimes, the budget is limited. Implementing hyper-converged solutions sometimes are very expensive with the dozens of tolerance of failure.

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Md.Shahadat Hossain Shipon
Sr. Manager-Data Center and Virtualization at Omgea Exim Ltd

The price can be reduced. Small businesses cannot afford this solution.

There are limitations with Kubernetes and vSAN.

In the next release, I would like to have a hybrid flash available with this product.

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Founder at a construction company with 11-50 employees

They can package it in a way that is specific to the hardware infrastructure and the hardware platform. It should stay fairly up to date with the drivers and the manufacturer issues.

The problem with uncoupling the proprietary technology and component capabilities is that by uncoupling them, you run into some concerns or challenges over the poor performance model. These concerns really come when you start talking about high performance, high bandwidth, and high availability types of environments. While vSAN is a leader, in a critical view, it is not about being cost-effective. It is more about the immediate impact of money loss to the business in critical applications where we want to maintain a continuous operational 59 model. It is, however, good for QA/QC tasks. I don't necessarily know how it works in regards to VDI or virtual desktop infrastructure.

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Principal Security Engineer at a tech services company with 51-200 employees

I would like to see the availability of more template based VMware systems. Combined with the ability to check and measure multiple and converging data segments. Another issue I've seen is that the tool seems to be slow when first starting up. 

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System Engineer at a healthcare company with 1,001-5,000 employees

Disaster recovery needs to be improved, when there is a crisis, there is a problem with what is the quickest way to get out of it. This should be done automatically, not manually.

If we have a power failure then you have to find your way manually. There 's no way to automatically fix it. So there should be an automatic way to repair such crises from disaster recovery.

In the next release, I would like to see more clarity on where the files are. the details of the files, for example, where the owners of the files are, and more audits.

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Abbasi Poonawala
Vice President Derivatives Ops IT at a financial services firm with 10,001+ employees

The solution could be improved by having more filtered and multiple view volumes instead of a single view.

In the next release, I would like to see a more user-friendly dashboard with the potential to display issues. It should be capable of detecting the issues faster. For example, if something is wrong with your LAN, controller, or storage volumes.

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Trainer in information and communication technologies at a educational organization with 51-200 employees

I'd like to see improvement in the troubleshooting tools, specifically the troubleshooting mechanism. We like the product, but once in a while there are problems that require us to reboot the host to fix things, and that creates an impact on production. 

For additional features, I'd like to see a better monitoring tool. 

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Michael Ogunlade
Head of enterprise systems at Fidelity Bank Plc

Because of virtual storage, the system reaches reserve storage for its functions. It also consumes a certain amount of storage, which then results in the creation of a fault tolerance for the system. All of this adds to a lot of capacity being consumed in terms of storage for each drive for vSan. I find this to be one drawback of using vSan.

The pricing for licensing could be cheaper.

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AVP at a computer software company with 501-1,000 employees

I think it needs to be more cost-effective if customers already have existing SAN to compare with.

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Team Leader at a financial services firm with 10,001+ employees

We faced some latency issues but it's been a little better lately. I'd like to see a single dashboard product and an improvement in reporting which currently depends on third party applications. 

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Senior Infrastructure Solutions Specialist at Fiber Misr

They should provide Deduplication and Compression over the hybrid drives. The Deduplication and Compression are locally only on all flash drives.

When you compare with Nutanix, you will find the performance in the Deduplication and Compression is over hybrid and on the flash drives. This feature is needed in vSan.

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Solution Architect at a tech vendor with 1,001-5,000 employees

It would help if the cost of the solution was reduced for smaller sized companies. 

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Peter Betyounan
CTO & Co-Founder at Servers Australia

I am looking for more of a software-defined storage platform that uses different protocols, such as iSCSI, NFS, and CIS, and maybe also has an object as part of that. They should 100% make it more of a storage-based product where it is not linked just to VMware, and it also has NFS and iSCSI built-in at a scalable level. They should turn it more into a dedicated storage-as-a-service platform instead of just being built into the VMware kernel.

Their level one and level two support is not at all good, and it should be improved.

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Senior Manager IT Services at a financial services firm with 1,001-5,000 employees

Its integration with a hybrid cloud can be improved. Its scalability can also be improved so that it can be integrated with more than 32 nodes. The maximum number of nodes is okay, but our use cases could probably do with more nodes, probably up to 64.

In terms of new features, it should probably have the basic support for high-speed networking spaces.

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Information Technology Consultant at a tech services company with 201-500 employees

Integration could be better. It should be easier to integrate vSAN with the dashboard you have, with Google, and the others. Better integration is very important because the customers need to put the solution inside their company. It's the same dashboard for AWS, the same dashboard on GCP. It's good to see this inside a dashboard. It's very important.

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Sandeep Solanki
Assistant General Manager at a manufacturing company with 1,001-5,000 employees

There is always a challenge with their firmware. There is different hardware and they are always looking for different firmware that is compatible with vSAN. It is very difficult to find the compatibility matrix.

They need to do some kind of automation in terms of hardware, firmware, and compatibility with the vSAN. They need to do some sort of upgrade for the customer.

I would like to see the upgraded mechanism, and improvements on the hardware so that we can create a VPN.

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Systems Operations Manager at a healthcare company with 10,001+ employees

It should be easier to use. Only trained people can properly use it. For untrained, system administrators, it's tough to get a firm understanding of the basics, that's why I'm still studying it.

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Systems Engineer at a comms service provider with 11-50 employees

Its price could be improved. It is too expensive for our clients.

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Senior System Engineer at a comms service provider with 201-500 employees

Its installation should be easier, and its price should be cheaper. 

It would be good for the product if they can include the data locality feature.

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Business Development Manager at iVolve Technologies

Traditional infrastructure, Private cloud and the hybrid cloud

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Patrick Lamarche

This solution would benefit from better collaboration with Cisco for driver updates.

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Samson Kitaw
Network Manager at Bank of Abyssinia

It is quite an expensive solution for us and I would like to see some improvements on the backup side of the solution. 

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Ben Marquis
Co-Founder/CEO at StorSolv

This solution is not great for large file shares/object/rich media repository.

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Learn what your peers think about VMware vSAN. Get advice and tips from experienced pros sharing their opinions. Updated: March 2021.
475,291 professionals have used our research since 2012.