💾 NetApp ASA A70 vs Pure FlashArray //X vs Dell PowerStore 3200T

The most important practical difference is scope. NetApp's ASA A70 is a deliberately block-only SAN array — it strips ONTAP back to a simplified SAN operating model and pushes raw performance (12M IOPS, 256 GB controller memory, 2.7 PB raw per HA pair). Pure's FlashArray//X and Dell's PowerStore 3200T are both unified platforms that serve block and file from one box, with broadly similar feature sets but very different operating philosophies.

NetApp wins on headline performance and on scale within a single HA pair, and the 100% data availability SLA plus Ransomware Recovery Guarantee are commercially meaningful for UK financial-services and NHS workloads where downtime carries hard penalties. The trade-off is that ASA r2 is SAN-only — if you also need NFS/SMB you'll need a separate FAS/AFF or a different platform entirely. Pure FlashArray//X is the strongest day-two experience in the group: Pure1's AIOps, the Evergreen non-disruptive upgrade model, and 250µs latency under load make it the easiest to live with for five-plus years, and SafeMode snapshots are genuinely well-implemented. The cost is a proprietary DirectFlash media stack and a premium price point. Dell PowerStore 3200T sits between the two on raw spec but offers the most generous controller resources (64 cores, 768 GB RAM), native unified block+file, metro sync for zero-RPO DR, and typically the most aggressive commercial terms through Dell's UK channel — particularly when bundled with PowerProtect or VxRail.

For a UK buyer the framework is straightforward. Pick the ASA A70 if you run a pure SAN estate (VMware, Oracle, SQL, Epic) and want maximum block performance plus NetApp's data-protection guarantees and Keystone STaaS. Pick FlashArray//X if operational simplicity, predictable latency and a genuinely non-disruptive ten-year roadmap matter more than headline IOPS — it's the lowest-risk choice for teams that don't want to think about their array. Pick PowerStore 3200T if you need unified block and file in one appliance, want metro sync replication built in, or you're already standardised on Dell infrastructure and APEX consumption.

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