Pure block storage excellence — symmetric active-active multipathing, NVMe speed, 100% availability guarantee
The NetApp ASA A70 is an all-SAN array built exclusively for block storage workloads. Running ASA r2 software with symmetric active-active multipathing, it delivers sub-millisecond NVMe latency, 6.6 PB raw per HA pair, and NetApp's 100% data availability guarantee for mission-critical SAN environments.
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The ASA A70 implements symmetric active-active multipathing across all SAN protocols — meaning all paths to a LUN are simultaneously active and load-balanced. Unlike asymmetric active-passive configurations where secondary paths add latency overhead, ASA delivers consistent sub-millisecond performance on every path. Transparent automatic failover occurs without I/O disruption on any path failure.
A single ASA A70 HA pair simultaneously serves NVMe/FC, NVMe/TCP, iSCSI, and FC block workloads. Organisations can consolidate VMware VMFS datastores (iSCSI/FC), Oracle RAC clusters (FC/NVMe/FC), Windows Hyper-V (iSCSI), and container persistent volumes (NVMe/TCP) onto one managed, redundant SAN platform.
NetApp backs the ASA with a formal 100% data availability guarantee — the industry's only SAN storage guarantee of its kind. The ASA A70 achieves this through symmetric active-active multipathing, redundant controller architecture, non-disruptive controller failover, and ONTAP's proven six-nines availability (99.9999%) track record.
ASA r2 introduces a simplified ONTAP-based operating model purpose-built for block storage — eliminating the NAS-specific complexity of traditional ONTAP configurations. Storage units (LUNs and NVMe namespaces) are managed through a streamlined interface, reducing operational overhead while maintaining the full ONTAP data services layer including SnapMirror, SnapLock, and ransomware protection.
SnapMirror provides synchronous and asynchronous replication of block storage LUNs and NVMe namespaces to remote ASA or AFF systems. SnapMirror Synchronous delivers zero-RPO replication for the most critical databases. MetroCluster Business Continuity provides active-active site mirroring for transparent, non-disruptive failover across two data centres.
ONTAP Autonomous Ransomware Protection on ASA monitors LUN I/O patterns in real time, detecting ransomware encryption behaviour and automatically creating immutable snapshot copies on detection. SnapLock Compliance provides tamper-proof snapshot retention for regulatory compliance and forensic recovery. NetApp's Ransomware Recovery Guarantee applies to ASA workloads.
The NetApp ASA A70 is the midrange member of NetApp's ASA r2 all-SAN array family — a purpose-built block storage platform designed from the ground up for mission-critical SAN workloads requiring maximum performance, simplicity, and availability.
Unlike unified storage systems that serve both file and block, the ASA A70 is optimised exclusively for block storage. Running ASA r2 software (based on ONTAP), it eliminates NAS-specific configuration complexity while delivering the full ONTAP data services stack — SnapMirror replication, SnapLock Compliance, Autonomous Ransomware Protection, and snapshot management — in a block-storage-native interface.
The ASA A70's symmetric active-active multipathing architecture is its defining differentiator: every path to every LUN and NVMe namespace is simultaneously active and load-balanced. This eliminates the preferred/non-preferred path asymmetry of competing SAN arrays, delivering consistent sub-millisecond latency regardless of which path the host I/O traverses. Automatic transparent failover on path or controller failure requires no host intervention.
NetApp backs the ASA with the industry's only 100% data availability guarantee — a formal SLA commitment supported by symmetric active-active architecture, redundant hot-swap components, and ONTAP's proven six-nines availability record. The ASA A70 is the appropriate choice for any mission-critical database, virtualisation, or containerised application where storage downtime is simply not acceptable.
Symmetric active-active multipathing and sub-millisecond NVMe latency make the ASA A70 the premium SAN choice for Oracle RAC, SQL Server Always On, SAP HANA, and PostgreSQL databases that cannot tolerate storage-induced latency variability or planned downtime.
The ASA A70 provides certified VMware VMFS and Microsoft Hyper-V CSVFS block storage with iSCSI, FC, and NVMe/FC — with ONTAP integration into vCenter, VASA, and SMI-S for automated storage provisioning, thin-provisioning monitoring, and VM-aligned snapshot management.
NVMe/TCP and iSCSI support with NetApp Trident enable dynamic, automated persistent volume provisioning for Kubernetes and OpenShift containerised applications — providing enterprise block storage performance and data protection for cloud-native workloads.
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