NetApp's most powerful all-flash platform — 14.7 PB raw, 2048 GB memory, 176 PB NAS scale
The NetApp AFF A1K is NetApp's flagship modular all-flash storage system — delivering 14.7 PB raw capacity per HA pair, 2048 GB controller memory, 176 PB NAS scale-out, and the full breadth of ONTAP data services. Built for the largest, most demanding enterprise storage environments.
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The AFF A1K delivers 14.7 PB raw per HA pair through a modular dual-chassis design — more than double the per-system capacity of the AFF A70 or A90. At 24-node scale, NAS capacity reaches 176 PB raw (1.5 exabytes effective with typical 5:1 efficiency ratios), making the A1K the platform for the largest centralised enterprise NAS deployments.
With 2048 GB of memory per controller — the highest in the AFF A-Series — the A1K maintains the largest ONTAP metadata caches and working sets for maximum throughput across extremely large namespaces. This enables consistent low-latency performance even at petabyte-scale file and block workloads.
Up to 24 × 200Gbps Ethernet ports and 56 × 64Gbps NVMe/FC ports per system provide the network bandwidth to feed the largest AI compute clusters and multi-tenant enterprise workloads simultaneously. NFSv3/RDMA and NFSv4/RDMA further reduce CPU overhead for direct memory-attached storage access.
ONTAP MetroCluster provides synchronous active-active mirroring across two geographically separated data centres, with automatic transparent failover on site failure. Zero RPO (no data loss) and zero RTO (instantaneous failover) eliminate storage as a single point of failure for mission-critical applications.
NetApp AFF systems are the only enterprise storage platforms validated for top-secret government data. AES-256 encryption at rest, TLS in transit, FIPS 140-2 validated cryptographic modules, SnapLock Compliance tamper-proof snapshots, and ONTAP Autonomous Ransomware Protection provide layered defence for the most sensitive data environments.
NetApp BlueXP provides a unified control plane for AFF A1K on-premises alongside Cloud Volumes ONTAP on AWS, Azure, and GCP. SnapMirror to the cloud, automated FabricPool tiering, and Cloud Backup provide hybrid cloud data mobility and DR without re-platforming applications.
The NetApp AFF A1K represents the pinnacle of NetApp's all-flash unified storage portfolio — a modular, dual-chassis platform engineered for the largest enterprise storage requirements. With 14.7 PB raw capacity per HA pair and 2048 GB of controller memory, the A1K delivers the performance and capacity headroom for organisations managing data at petabyte and exabyte scale.
ONTAP 9.16.1 underpins the A1K with the industry's richest data management capabilities — always-on inline deduplication, compression, and compaction; FlexVol and FlexGroup for scalable volume management; FlexClone instant thin copies; SnapMirror Synchronous and Asynchronous replication; MetroCluster active-active site mirroring; FabricPool automated cloud tiering; and ONTAP Autonomous Ransomware Protection.
The AFF A1K's networking capability is equally exceptional: up to 24 × 200Gbps Ethernet ports provide the bandwidth foundation for NVIDIA DGX SuperPOD AI clusters and large-scale NFS deployments, while 56 × 64Gbps NVMe/FC ports serve block-intensive database and VDI environments. NFSv3/RDMA and NFSv4/RDMA support direct memory-attached storage for applications requiring minimum CPU overhead.
Security leadership extends beyond the enterprise: NetApp AFF systems are validated for top-secret government data — the only enterprise storage platform with this designation. FIPS 140-2 encryption, SnapLock Compliance, Autonomous Ransomware Protection with 99%+ detection accuracy, and the NetApp Ransomware Recovery Guarantee provide comprehensive data protection for the most regulated environments.
At 176 PB effective NAS capacity across 24 nodes, the A1K consolidates the largest distributed NAS environments — from financial services data lakes to media and entertainment archives — onto a single managed, all-flash ONTAP platform.
With 200Gbps Ethernet and NFS/RDMA, the A1K delivers the storage throughput required to feed NVIDIA DGX H100 SuperPOD clusters during LLM pre-training and fine-tuning — eliminating storage as the GPU utilisation bottleneck at scale.
The AFF A1K is the only enterprise storage validated for top-secret government data. FIPS 140-2 encryption, SnapLock Compliance, and government-grade security make it the platform of choice for defence, intelligence, financial services, and healthcare data management.
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Midrange all-flash power — 330 PB effective scale, NVMe/RDMA, and NVIDIA DGX SuperPOD ready
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