We performed a comparison between IBM FlashSystem and VMware vSAN based on real PeerSpot user reviews.
Find out what your peers are saying about Dell Technologies, NetApp, Nasuni and others in NAS."Over the years, it has become increasingly user-friendly."
"When it comes to the interface of the solution we did not encounter any challenges. Additionally, the solution has good documentation."
"It is simple to make an update."
"The price-performance ratio is most valuable."
"The most valuable feature of the solution is SCM (Storage Class Memory), which has the lowest latency value in the storage industry."
"The speed, performance, and stability are the best features of IBM FlashSystem."
"The solution is scalable and has varying degrees of scalability."
"The most valuable feature is reliability."
"Overall the solution is very good."
"It helped us survive power outages in one of our data centers, then continued to function without a hitch."
"Adding new nodes and expanding vSAN forward is simple and non-disruptive for a lot of our customers."
"One of the valuable features of vSAN is it has a universal type of technology that allows you to deploy it on any server or hardware. Competitors, such as Nutanix, provides the AOS and can be deployed only on certified hardware. For vSAN, it does not require any kind of certified hardware."
"The vSAN features we've found most helpful are live application migrations and storage policies. It has storage, policies, application, and DRS policies. Automation is there."
"The solution's technical support is good."
"It's completely hyper-converged, so it's very convenient."
"The simplicity, as well as the integration with virtualization."
"AHV is Acropolis Hypervisor – A relatively new Hypervisor, robust and stable as VMware vSphere, has built-in advanced analytics and powerful operations, Self Service Portal and components for DevOps included, managed by a single pane of glass (Prism) via HTML5 and it is free of charge – That is why Nutanix is so advanced and revolutionary."
"This solution could be improved by offering greater amounts of storage."
"A big area for improvement is that the data reduction pool feature is not recommended for use in a production environment because it has stability and performance issues."
"They don't offer subscription-based payments."
"It could be easier to implement."
"The solution is not able to replicate data in one-to-many scenario."
"The Data Reduction Pools (DRP) support could be better."
"In IBM FlashSystem, data reduction is an area with shortcomings where improvements can be made in the future."
"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."
"VMware vSAN could improve by having better integration with other vendors and the storage is limited, I prefer it to the traditional storage."
"One of the things that we've had challenges with are when we place hosts into maintenance mode. Sometimes doing so triggers large re-sync processes which can be time-consuming and which have, at times, pushed the capacity to the threshold. I definitely think making some changes in that area would provide some big improvements."
"We would really like them to look at what Nutanix did for day-one/day-two operations deployment: Bringing in the equipment, getting it deployed, getting it setup, and ease of use of one-click for deploying our 30-node solution. With vSAN we had to go into each one individually and set it up."
"The usability is pretty good but it could use a little tweaking on the UI, with a clearer definition of exactly what some of the things do."
"Hackers are able to manage to leak information or data from the product using some corrupt files, making it an area of major concern where improvements are required."
"VMware vSAN could improve by adding NAS and object storage."
"If we have some complicated issues, you have to use the command lines interface. Not everything is possible to be fixed in the GUI. This is a drawback, that some things have to be fixed via command-line interface and should be able to be done in the GUI."
IBM FlashSystem is ranked 4th in NAS with 106 reviews while VMware vSAN is ranked 2nd in HCI with 227 reviews. IBM FlashSystem is rated 8.2, while VMware vSAN is rated 8.4. The top reviewer of IBM FlashSystem writes "An easy GUI and simple provisioning but our model does not support compression". On the other hand, the top reviewer of VMware vSAN writes "Very stable, easy to set up, and easy to use". IBM FlashSystem is most compared with Dell PowerStore, Pure Storage FlashArray, Dell Unity XT, NetApp AFF and Hitachi Virtual Storage Platform, whereas VMware vSAN is most compared with VxRail, Microsoft Storage Spaces Direct, HPE SimpliVity, Red Hat Ceph Storage and Dell PowerFlex.
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