💾 Dell PowerVault ME5024 vs NetApp AFF C400
AI-powered analysis across 26 matched specifications
Performance Overview
Scores based on quantifiable specification values (1-10 scale)
Detailed Specifications
| Specification | Dell PowerVault ME5024 Dell Storage | AFF C400 NetApp |
|---|---|---|
| Key Metrics | ||
| Form factor | 2U dual-controller | 4U dual-controller HA pair |
| Drive bays (base chassis) | 24 × 2.5" SAS/SSD | 24 × NVMe QLC SSD |
| Media type | NL-SAS, 10K SAS, SAS SSD | NVMe QLC SSD (all-flash) |
| Maximum raw scale | ~8 PB / 336 drives | 141 PB effective / 1,152 SSDs (24-node) |
| Controller cache | 16 GB per controller | Not published |
| Rated availability | -- | 99.9999% |
| Capacity & Efficiency | ||
| Architecture | Hybrid / all-flash SAN block array | Scale-out unified NVMe flash |
| Data reduction | Thin provisioning (no inline dedupe/compression) | Inline dedupe + compression (typical 4:1) |
| Auto-tiering | Yes (SSD/SAS/NL-SAS tiers) | Not applicable — all-flash QLC |
| Expansion shelves | ME412 / ME424 / ME484 | Additional NS224 NVMe shelves |
| Scale-out clustering | No — dual-controller only | Yes — up to 24 nodes |
| Performance & Protocols | ||
| Block protocols | FC, iSCSI, SAS | FC, iSCSI, NVMe/FC, NVMe/TCP |
| File protocols | -- | NFS v3/v4.x, SMB/CIFS |
| Object protocol | -- | S3 |
| Front-end host ports | 8 × 32Gb FC, or 8 × 25GbE iSCSI, or 8 × 10GBASE-T, or 12Gb SAS | Configurable Ethernet / FC adapters per controller |
| RAID / data protection | ADAPT (distributed RAID), RAID 1/5/6/10 | RAID-DP, RAID-TEC (triple parity) |
| Data Services & Resilience | ||
| Snapshots | Included | Included (redirect-on-write, space-efficient) |
| Replication | Async + synchronous replication included | SnapMirror async + SnapMirror Synchronous / MetroCluster |
| Ransomware protection | Snapshot-based | ONTAP autonomous ransomware protection (AI/ML) + Recovery Guarantee |
| Cloud tiering | No native cloud tier | FabricPool tiering to Azure / AWS / GCP |
| Multi-tenancy | Limited | SVMs (Storage Virtual Machines) |
| Management & Ecosystem | ||
| Management UI | PowerVault Manager (HTML5) | ONTAP System Manager + BlueXP |
| API / automation | REST API | REST API, Ansible, Terraform, PowerShell |
| Hypervisor / OS certifications | VMware, Windows Server, RHEL, SLES | VMware, Hyper-V, RHEL, SLES, Kubernetes (Trident CSI) |
| Licensing model | All features included with array | ONTAP One bundle (most features included on C-Series) |
| Typical UK street price (entry) | £15k–£40k | £90k–£200k+ |
Expert Analysis
These two arrays are in genuinely different leagues, and the honest framing for UK buyers is that this is an entry SAN versus a mid-range enterprise unified platform — not a like-for-like fight. The PowerVault ME5024 is a 2U dual-controller block array that will land somewhere between £15k and £40k depending on media mix, supports FC, iSCSI or SAS to hosts, and includes all of its data services (snapshots, replication, thin provisioning, ADAPT RAID) in the box. The AFF C400 is a 4U NVMe QLC platform running ONTAP, with inline dedupe and compression, NVMe/TCP and NVMe/FC, native file and S3, FabricPool cloud tiering and SnapMirror replication into Azure, AWS or GCP — at roughly 4–6× the entry price.
The ME5024 wins on simplicity and £/TB at the bottom of the market. For a VMware cluster, a SQL Server estate, a video surveillance archive or a departmental file/block workload under ~200 TB, it does the job with no licence games, no separate management server, and a learning curve a generalist sysadmin can absorb in a day. Where it falls short is data efficiency (no inline dedupe/compression — you buy the capacity you need), the absence of a native file or object stack, and the hard ceiling of two controllers. If your workload outgrows it you replace it, you don't scale it out.
The AFF C400 earns its premium when you actually need ONTAP: unified block+file+object from one platform, SnapMirror to a DR site or hyperscaler, SVM-based multi-tenancy, Trident for Kubernetes, autonomous ransomware protection with NetApp's recovery guarantee (which matters for FCA-regulated and NHS DSPT-aligned buyers), and 6-nines availability. The QLC media keeps £/TB competitive against hybrid arrays while delivering all-flash latency, and the 24-node scale-out ceiling means you're unlikely to outgrow it in a single refresh cycle.
Recommendation: if you're a UK SME or mid-market team buying primary storage for a single site, one or two hypervisor clusters, and you want predictable cost with no licence add-ons, the ME5024 is the rational choice. If you're consolidating mixed workloads (VMs, file shares, container persistent volumes, analytics), need synchronous replication or cloud tiering, or operate under regulatory regimes where ransomware recovery SLAs and audit trails matter, the AFF C400 is worth the additional capex and the ONTAP skills investment.
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