Dell Unity XT 680F vs NetApp AFF A400
Side-by-side specifications from the vendors' own documents. The Dell Unity XT 680F is a high-performance all-flash enterprise storage array built to handle intensive database clustering, private cloud virtualization, and large-scale SAP workloads. The NetApp AFF A400 is an enterprise midrange all-flash array featuring hardware-accelerated data reduction and native end-to-end NVMe protocol support.
| Dell Unity XT 680F | NetApp AFF A400 | |
|---|---|---|
| Brand | Dell | NetApp |
| Status | current | end-of-sale |
| Released | May 2019 | Feb 2020 |
| Form factor | 2U rack | 4U rack |
| Cpu platform | Dual active-active storage processors (SPs), Intel Xeon Skylake 12-core (1.9 GHz) per SP | — |
| Memory max (GB) | 384 | — |
| Drive bays | Up to 25x 2.5-inch SAS SSDs in base DPE; expands up to 1000 all-flash SSDs across DAEs | Connects to NS224 NVMe drive shelves and DS224C SAS drive shelves |
| Raw capacity | Up to 8.0 PB raw capacity (up to 24 PB effective with 3:1 data reduction) | — |
| Network onboard | 4-port 10GbE / 1GbE; 2x I/O module slots per SP supporting 16Gb/32Gb FC or 25GbE optical | — |
| Power supply | Dual redundant hot-plug 1800W Platinum power supplies | — |
| Controller configuration | — | Dual controllers in 4U enclosure |
| Processor | — | Intel Xeon processors with dedicated crypto/compression offload engines |
| Memory | — | 256GB system memory per HA pair with NVRAM |
| Supported drives | — | NVMe TLC SSDs (1.9TB to 15.3TB) and 12Gb SAS SSDs (960GB to 15.3TB) |
| Maximum raw capacity | — | Up to 140PB in a 24-node cluster |
| Host connectivity | — | PCIe slots supporting 100GbE, 25GbE, 10GbE, 32Gb FC, and 16Gb FC |
| Storage protocols | — | NVMe/FC, NVMe/TCP, FC, iSCSI, NFS, SMB |
| Clustering | — | Up to 24 nodes (12 HA pairs) |
| Management | — | NetApp ONTAP 9 |
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