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 performance monitoring feature is useful as it can report in 15 minute intervals by hour, day, week, month, or by a custom date range."
"The most valuable feature of the solution is compression."
"The ability to create LUNs and modify them are the most valuable features of this solution."
"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."
"This solution is convenient, user-friendly, convenient and reliable."
"IBM FlashSystem has an easy to use GUI, similar to the IBM Storewize family, which make it one of the best flash storage systems in the market."
"The valuable features for us are the extra add-ons, such as the FIM provisioning, the compression, the disaster recovery capabilities, and the storage pooling functions."
"The installation is nice and easy."
"Being able to deploy multiple applications with virtual servers is the most valuable for us. The capacity of the system is quite constant so it's got some of the good features."
"The features of vSAN allow us to reduce our operational complexity to a large degree."
"The most valuable features are Erasure Coding, Deduplication and Compression, and the advancement in stretching regarding replication."
"The feature that I have found most valuable is that it is easy to deploy. It is easy to create and delete virtual servers. It is easy to create the load balancing and the clustering."
"The technical support is good."
"We didn't only choose vSAN; we chose VMware because of SR-IOV, which is more on the hypervisor level and not on the vSAN storage. It's part of the whole system."
"The valuable feature of the solution is the total hyperconverged facility."
"Instead of going for SAN storage, customers can use the scale-up and scale-out features of VMware vSAN."
"It has room for improvement in the area of stability."
"Our model does not support compression or deduplication."
"They don't offer subscription-based payments."
"One area for improvement is in the GUI, where host clusters are not properly dealt with. With Hypervisor host clusters, all hosts must see the same volumes in the same order. Using the concept of a “host-group” has been around (even with IBM) for many years, so why not with the V7000?"
"We had issues when attempting to do a flash, we hope to resolve it soon."
"The initial setup is complex."
"IBM should improve its data reduction development."
"GUI interface should be enhanced more as there is some issues in copy services."
"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."
"I would love for this product to be cheaper and easier to configure."
"The integration could be improved. I would like to see integration with other platforms."
"It doesn't seem like it gives the performance that an actual SAN would give for heavy IOPS, read/writes."
"The ability to access SAN environments with fiber channels (or even NVMe) would be a good addition."
"The customer service is good but there is a cost for it. It does not come free."
"The monitoring feature in VMware vSAN could be better."
"There are certain shortcomings in the stability of the product where improvements are required."
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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