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."The speed, performance, and stability are the best features of IBM FlashSystem."
"The valuable features are high availability, compression, and a failover mechanism. It's a very highly available storage solution."
"The solution is scalable and has varying degrees of scalability."
"It's very easy to manage."
"The initial customer technical support was efficient and effective."
"The maintenance service and support from IBM is very good."
"IBM FlashSystem is a powerful effective storage solution. Additionally, it is user-friendly, anyone can use it."
"We are a 100% satisfied with the stability of the solution."
"I like the tolerance of VMware vSAN."
"vSAN that has been most effective in streamlining storage operations. For data recovery alerts, it uses tools like snapshots and vMotion."
"It scales well. We have plenty of room to grow."
"Storage policies are used to perform operations in the VMs. This feature allows you to create storage policies for VMs to get performance, high availability, I/O policies, etc."
"IOPS is comparatively best to run VDI solution."
"While we haven't made major changes to our disaster recovery and business continuity processes yet, moving towards stretch vSAN across sites will simplify and expedite our DR processes in the future."
"It completely removes the need for a storage network and for a storage administrator and all of that infrastructure and the costs that are involved with them."
"The most important feature to me, in my role, is cost. In the renewal cycle for storage, it was about a 40 percent saving compared to going to an all-flash array, which is what we first looked at doing. Secondly, performance: we need clinical data access in five seconds and need to do everything we can to retain that metric. Thirdly, I was really pleasantly surprised during the data migration across to vSAN, that it happened almost instantly whereas, in the past, migrating from array to array was an arduous and fraught process."
"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."
"Our model does not support compression or deduplication."
"IBM should improve its data reduction development."
"This solution needs a management console where we are alerted to issues and can report them, or escalate them through email or another method."
"The pricing could be improved, but I think it's getting better and better with each version. IBM needs to implement NAS storage again, as this is a big flaw. Dell EMC is very good at this and if you compared them based on NAS storage, Dell EMC would win right away. IBM's solution for NAS storage is very complicated. We don't have a storage box that provides file sharing from itself, we have to put software on it and go through a whole complicated process. It should be simplified."
"The GUI for monitoring performance metrics could provide better visibility. For example, it doesn't let me segregate the IOPS per volume."
"The solution is quite expensive. That's one of the downsides to using it."
"The solution is not able to replicate data in one-to-many scenario."
"The quality of the customer service and support depends on the vSAN case. For example, if I open ten cases, maybe two or three get resolved quickly. But the other cases have a slow response."
"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."
"Lacks an integrated backup solution."
"One area that could be improved is the management feature."
"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 vSan product uses a software system called Vsphere to monitor the system. It is sometimes difficult to manage the PCs within the systems."
"It can be very expensive."
"There could be more features with the automatic backup."
IBM FlashSystem is ranked 4th in NAS with 106 reviews while VMware vSAN is ranked 3rd in HCI with 226 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 Nutanix Cloud Infrastructure (NCI).
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