Dell VxRail S670
The Dell VxRail S670 is a storage-dense 2U hyperconverged appliance engineered for big data analytics, Splunk logging clusters, CCTV surveillance repositories, and long-term VMware archive workloads. Combining 12 high-capacity 3.5-inch enterprise drives with rear-mounted solid-state vSAN cache drives, the S670 delivers dense petabyte-scale storage economics in a standardized HCI architecture.
Also written as: VxRail S670, Dell EMC VxRail S670, S670 Storage-Dense 2U HCI
Specifications
| Brand | Dell |
|---|---|
| Family | VxRail |
| Form factor | 2U rack |
| Released | Jun 2021 |
| Cpu platform | Dual Intel Xeon Scalable 3rd Gen (Ice Lake) processors |
| Memory max (GB) | 2,048 |
| Drive bays | 12x 3.5-inch SAS/SATA drive bays + up to 2x or 4x rear 2.5-inch SSD bays for vSAN cache |
| Raw capacity | Up to 240TB raw capacity per 2U node (using 20TB 3.5-inch drives) |
| Network onboard | Broadcom / Intel OCP 3.0 mezzanine (25GbE SFP28 / 10GbE) |
| Power supply | Dual redundant hot-plug 1400W Platinum power supplies |
Generations
- Previous generation: Dell VxRail S570
Compatible parts
HBAs
540-BCMT Dell QLogic 2772 Dual Port 32Gb Fibre Channel PCIe Adapter
540-BCMU Dell Emulex LPe35002 Dual Port 32Gb Fibre Channel PCIe Adapter
Transceivers
407-BCBI Dell 32Gb Short Wave SFP28 Fibre Channel Optical Transceiver
407-BCBF Dell 25GbE SFP28 SR Optical Transceiver (850nm, 100m MMF)
Rail kits
770-BCKW Dell ReadyRails II Sliding Rails for 2U PowerEdge Servers (B6)
Drive caddies
X7K8W Dell 3.5-inch Gen14/Gen15/Gen16 Hot-Plug Drive Caddy Tray (LFF)
SSDs
400-AZPZ Dell 1.92TB SAS Read Intensive 12Gb/s 2.5-inch Hot-Plug SSD
400-BDSD Dell 3.84TB SAS Read Intensive 12Gb/s 2.5-inch Hot-Plug SSD
Works together
How the Dell VxRail S670 connects to servers, storage and the network: 1 way, with the parts and products on each path.
Hyperconverged cluster
Plan at least two 25GbE ports per node to two switches; all-NVMe clusters often move to 100GbE.
Adapters for the server
540-BBGN Dell Broadcom 57412 Dual Port 10GbE SFP+ PCIe Adapter
540-BBGO Dell Broadcom 57416 Dual Port 10GBASE-T RJ45 PCIe Adapter
540-BBGP Dell Broadcom 57416 Dual Port 10GBASE-T RJ45 OCP 3.0 Adapter
540-BBGY Dell Broadcom 57414 Dual Port 10/25GbE SFP28 PCIe Low Profile Network Adapter
Switches
Dell PowerSwitch N3248TE-ON 1U switch
Dell Connectrix ED-DCX7-4B 9U director chassis
Dell PowerSwitch N3248PXE-ON 1U switch
Dell PowerSwitch N3224F-ON 1U switch
Optics
407-BBOU Dell 10GbE SFP+ SR Optical Transceiver (850nm, 300m MMF)- 407-BCBF Dell 25GbE SFP28 SR Optical Transceiver (850nm, 100m MMF)
SFP-10G-LR-AR Arista 10GBASE-LR SFP+ Optical Transceiver Module
Plan and size it
- Draw this setup in the topology planner mrplanb.com
- Add up rack power and space rack-density.com
- Hypervisor advisor: which platform fits you mrplanb.com
- VM platform Ledger: hypervisors scored mrplanb.com
- Virtualization storage Ledger: scored storage platforms mrplanb.com
- Dell E-Lab Navigator (Dell interoperability) dell.com
Check compatibility with Dell
Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that Dell has tested with the Dell VxRail S670.
- Compatibility Dell E-Lab Navigator (storage and SAN interoperability) (free vendor sign-in)
- Support Dell Support: drivers, manuals and service tag lookup
Equivalent models from other brands
Buying a used VxRail S670: what to check
Check rear SSD cache drive carrier health, inspect 12 front 3.5-inch drive trays, verify dual 25GbE network links, and confirm vSAN hybrid license entitlements.
FAQ
How does the S670 handle vSAN caching with 3.5-inch drives?
Rear-mounted 2.5-inch SAS or NVMe SSDs provide dedicated high-speed read/write caching for front 3.5-inch capacity drives.
What is the maximum raw capacity of a 4-node S670 cluster?
A 4-node cluster configured with 20TB drives delivers approximately 960TB of raw hybrid storage.
Buying or selling VxRail S670?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- Dell VxRail S-Series Spec Sheet, checked 2026-10-27