Performance Overview
Scores based on quantifiable specification values (1-10 scale)
Detailed Specifications
| Specification | ASA A70 NetApp | AFF A70 NetApp |
|---|---|---|
| Key Metrics | ||
| Form factor | 4U HA pair | 4U HA pair |
| NVMe SSD slots | 48 | 48 |
| Controller memory per HA pair | 256 GB | 256 GB |
| Maximum raw capacity per HA pair | 6.6 PB | 6.6 PB |
| Peak performance | 12M IOPS | 12M IOPS |
| Maximum cluster scale | 6 nodes (3 HA pairs, SAN) | 24 nodes NAS / 6 nodes SAN |
| Availability | 100% data availability guarantee (SLA-backed) | 99.9999% (six nines) |
| Workload & Protocol Support | ||
| Storage model | Block-only (SAN) | Unified (SAN + NAS + object) |
| Block protocols | NVMe/FC, NVMe/TCP, iSCSI, FC | NVMe/FC, NVMe/TCP, iSCSI, FC |
| File protocols | -- | NFSv3/RDMA, NFSv4/RDMA, SMB |
| Object protocol (S3) | -- | Yes (ONTAP S3) |
| AI/HPC certification | -- | NVIDIA DGX SuperPOD certified |
| Connectivity | ||
| NVMe/FC ports (max) | -- | 56 × 64Gbps |
| Ethernet (max) | -- | 24 × 200Gbps |
| Multipathing | Symmetric active-active (all paths load-balance) | ALUA active-active (asymmetric per LUN) |
| Data Services & Security | ||
| Operating system | ASA r2 (simplified block ONTAP) | ONTAP 9 (full feature set) |
| Ransomware detection | AI/ML autonomous | AI/ML autonomous |
| Ransomware Recovery Guarantee | Yes | Yes |
| Encryption | AES-256 (NVE/NAE) | AES-256 (NVE/NAE) |
| WORM / Compliance lock | -- | SnapLock Compliance & Enterprise |
| Replication | SnapMirror (block) | SnapMirror, SnapMirror Sync, SnapMirror Active Sync |
| Management & Operating Model | ||
| Management UI | ASA r2 simplified workflow (consumer-grade SAN UX) | ONTAP System Manager (full feature surface) |
| Provisioning model | Storage units, no aggregates exposed | Aggregates, volumes, LUNs, qtrees |
| Cloud observability | BlueXP, Active IQ | BlueXP, Active IQ |
| Hybrid cloud tiering | -- | FabricPool to S3/Azure/GCP |
| Non-disruptive upgrades | Yes | Yes |
Expert Analysis
The headline truth here is that the ASA A70 and AFF A70 are the same physical box — identical 4U chassis, 48 NVMe slots, 256 GB controller memory, 6.6 PB raw and 12M IOPS ceilings. What differs is the operating model layered on top. The ASA A70 runs the simplified ASA r2 personality: block-only, no aggregates or volumes exposed to the admin, symmetric active-active multipathing across all paths, and a workflow designed for SAN teams who want a Pure-like provisioning experience. The AFF A70 runs full ONTAP 9, unlocking NFS, SMB, S3, SnapLock, FabricPool tiering and a 24-node NAS scale-out cluster.
If the workload is pure block — VMware datastores, Oracle, SQL Server, SAP HANA — the ASA A70 is the cleaner buy. Symmetric active-active is a genuine advantage over the AFF's ALUA model for latency-sensitive SAN, the operational surface is smaller (fewer ways to misconfigure), and the 100% data availability SLA is stronger on paper than the AFF's six-nines. The trade-off is real: no NFS, no SMB, no S3, no SnapLock Compliance, and a hard 6-node ceiling. You cannot grow it into a unified platform later without a forklift to AFF.
The AFF A70 is the right choice anywhere the workload mix is mixed or uncertain. UK buyers running VMware alongside file shares, EDA, M&E rendering, healthcare imaging (PACS/VNA), or anything touching the NVIDIA DGX SuperPOD reference architecture need the unified personality. SnapLock Compliance also matters for FCA record-retention and NHS DSPT evidence retention — the ASA simply doesn't offer it. The cost is operational complexity: ONTAP's full feature set is powerful but requires a storage admin who knows it, and ALUA pathing is marginally less elegant than the ASA's symmetric model.
Recommendation framework: pick the ASA A70 if your storage team is SAN-only, your workloads are block-only for the foreseeable 5-7 year life of the array, and operational simplicity outranks feature breadth. Pick the AFF A70 if you have any file, object, AI/ML or compliance-retention requirement now or likely within the asset's lifetime — the premium for unified is small relative to the cost of being trapped in a block-only silo later.
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