We performed a comparison between DDN SFA7990X and VAST Data based on real PeerSpot user reviews.
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DDN SFA7990X is ranked 34th in All-Flash Storage while VAST Data is ranked 18th in All-Flash Storage with 2 reviews. DDN SFA7990X is rated 0.0, while VAST Data is rated 10.0. On the other hand, the top reviewer of VAST Data writes "Stability-wise, a device that has been up and running for years". DDN SFA7990X is most compared with Huawei OceanStor, whereas VAST Data is most compared with Pure Storage FlashBlade, NetApp AFF, Pure Storage FlashArray, Qumulo and DDN Storage Fusion Architecture NVMe.
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