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Dell Unity 400F vs Pure Storage FlashArray //M20

Side-by-side specifications from the vendors' own documents. The Dell EMC Unity 400F is a midrange 2U all-flash storage system powered by dual 8-core Intel Xeon processors and 96GB of memory. The Pure Storage FlashArray //M20 was a 3U midrange all-flash array designed for virtualization consolidation and SQL/Oracle database environments.

Dell Unity 400FPure Storage FlashArray //M20
BrandDellPure Storage
Statusend-of-saleend-of-support
ReleasedMay 2016Jun 2015
Form factor2U rack3U rack
Cpu platformDual active-active Storage Processors, 2x Intel Xeon E5-2630 v3 (8 cores, 2.4 GHz per SP)—
Memory max (GB)96—
Drive baysUp to 25x 2.5-inch SAS SSDs in base DPE; expands up to 250 flash drives across DAEs—
Raw capacityUp to 1.5 PB raw all-flash storage capacityUp to 120TB raw with expansion shelves
Network onboard4-port 10GBASE-T embedded; 2x I/O module slots per SP supporting 16Gb FC or 10GbE optical—
Power supplyDual redundant hot-plug power supplies with integrated battery backup modules—
Controller configuration—Dual active-active controllers in 3U enclosure
Operating system—Pure Storage Purity//FA
Effective capacity—Up to 300TB effective
Drive media—12Gb SAS Flash Modules
Connectivity—16Gb/8Gb FC, 10GbE iSCSI
Nvram—Dual NVRAM modules with supercapacitor backup
Data reduction—Inline deduplication and compression
Management—Pure1 and Purity GUI

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