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 most crucial feature of IBM FlashSystem is compression."
"The valuable features are high availability, compression, and a failover mechanism. It's a very highly available storage solution."
"The FlashSystem 900 consistently delivers performance below 1ms for read/write. This performance is essential for an effective SVC stretch-cluster configuration across two datacenters, and presenting active-active storage to the customer."
"Installing FlashSystem is very easy. It takes less than half an hour, and I can handle it all myself."
"The all-flash storage has tier replication capabilities."
"Stability-wise, this solution is fine."
"The feature I find most valuable, is the deduplication, because the nature of the data that we are using in our current environment, has a lot of replicated data."
"The speed and the ease of installation are the most valuable features."
"We are finding that vSAN is a lot more scalable and adaptable, because we can go in with hybrid arrays for our lower-end storage needs or with all-flash versions of vSAN for places where we need more performance, and it's coming in at a lower cost point than an actual traditional array."
"Allows us to implement more quickly, and to ease the maintenance."
"vSAN can help customers save on storage system costs, and also save on the human cost."
"The solution is simple to use compared to other solutions, such as Hyperflex, VxRail, and Nutanix"
"The solutions best feature is that it is easy to use."
"Stability-wise, I rate the solution a ten out of ten."
"I like that we could choose whatever hardware we wanted, rather than having to use one particular vendor."
"One of the most valuable features of this solution is that it is stable."
"The only issue my team faced was transferring the data from the old system to IBM FlashSystem, which is an area for improvement in the solution."
"I would like to have a larger disk. Right now, you can get 57 terabytes in a shelf. Once they get the larger disk and you get larger capacities, it'll be even better."
"The installation is not easy. You need to have extensive knowledge to handle it."
"Customization features must be improved."
"Enterprise data storage needs improvement. They should create a feature for data and file storage."
"The price is very costly."
"I would like to see bigger modules."
"The product needs to improve their scalability."
"It can be very expensive."
"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."
"The UI could certainly be better. The inside into what's actually going on with vSAN would be nice to know."
"When we talk about improvements for vSAN, there is some way to go from a at least stability perspective. 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."
"I would love for this product to be cheaper and easier to configure."
"Licensing costs are a little too high for smaller sized companies."
"I would like to be able to limit IOPS."
"The only negative point relates to the licensing. If you want multiple, different servers, it costs money, but you have all the capacity for vSAN. You do not reach the data, but the processor arrays and the current architecture."
IBM FlashSystem is ranked 4th in NAS with 106 reviews while VMware vSAN is ranked 2nd 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 Dell PowerFlex.
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