UK IT leaders opening a fresh SAN or NAS quote in mid-2026 are discovering an uncomfortable truth: the array itself hasn't changed, but the bill has. The worldwide external OEM enterprise storage systems market grew 22.7% year-over-year in Q1 2026, reaching $9.2 billion in vendor revenue. The cause has nothing to do with new features and everything to do with what sits inside every controller and every SSD: DRAM and NAND flash, the same memory chips being bid up by AI infrastructure buyers globally. This piece explains how that shortage flows straight into your SAN/NAS quote, what it means for all-flash, hybrid and HDD architectures, and what UK IT leaders should actually do before signing the next purchase order.
View the data behind this chart
| Metric | Value | Context | |
|---|---|---|---|
| External OEM Market… | $9.2 billion | +22.7% YoY | Worldwide |
| All-Flash Systems… | 52.6% | First time >50% | Of external market |
| 30TB QLC SSD vs HDD… | 22.6x higher | Capacity cost | Q1 2026 |
Executive Summary: The 2026 Storage Array Price Shock for UK Businesses
Every storage array is, underneath the branding, a small computer: a controller with DRAM for metadata and write caching, plus a bank of SSDs (or HDDs) for capacity. In 2025 that architecture was a minor detail. In 2026 it is the single biggest cost driver in your quote, because DRAM and NAND are the two components experiencing significant and sustained price inflation, driven by unprecedented demand.
IDC's Q1 2026 tracker shows the effect at market level: worldwide external OEM enterprise storage systems revenue grew 22.7% year-over-year, reaching $9.2 billion, and All-Flash Systems now account for 52.6% of the entire external enterprise storage market revenue. None of that growth is UK buyers getting more capacity for the same spend — it's the market absorbing higher component costs and passing them through.
This is not a one-off spike to ride out; it is a structural repricing of every array quote currently sitting in a UK procurement pipeline.
The Hard Reality: What's Actually Moving on UK Storage Quotes
The clearest single data point for how violently flash pricing has moved comes from Vdura's flash volatility index, cited by Forbes: 30TB TLC enterprise SSD prices rose 472% between Q2 2025 and Q1 2026. That is a capacity-class SSD used inside exactly the kind of all-flash SAN and NAS controllers UK enterprises are specifying for AI and cloud-native workloads.
Zoom out to the component contract level and the picture is consistent. Conventional DRAM contract prices rose 93-98% quarter-on-quarter in Q1 2026, followed by a further 58-63% QoQ rise forecast for Q2 2026. NAND Flash product-level prices climbed 33% to 38% quarter-over-quarter in Q1 2026, with Q2 2026 NAND Flash contract prices projected to rise another 70-75% quarter-over-quarter.
The UK-specific commercial context makes this more than an academic exercise. For a fuller breakdown of how these swings are tracking quarter by quarter, see our latest storage array price index.
- •Worldwide external OEM storage systems market: +22.7% YoY, Q1 2026 (IDC)
- •30TB TLC enterprise SSD price: +472%, Q2 2025 to Q1 2026 (Vdura, via Forbes)
Why Complete Arrays Are Rising, Not Just Components
The mechanism buyers keep missing is that a SAN or NAS controller isn't insulated from the memory market just because it isn't a server. Controllers and cache memory are directly exposed to rising DRAM and NAND prices — the same silicon shortage hitting server RAM and consumer laptops is riding into the metadata cache and write buffer of every enterprise array.
The root cause is clear: AI infrastructure demand is the primary catalyst for price hikes across both DRAM and NAND flash. AI data centres are estimated to consume approximately 70% of high-end DRAM in 2026, leading to minimal supply for industrial and consumer sectors. This structural shift means suppliers are actively shifting production capacity toward higher-margin server applications, starving the enterprise storage segment of the same wafers it used to get at commodity pricing.
Some of the sharpest individual moves have hit flash types used inside enterprise controllers specifically. TrendForce projects SLC NAND contract prices — a class used in caching and write-buffer roles — to rise 120-170% in the second half of 2026 compared with the first half, driven by MLC migration and niche application demand. This is precisely the kind of pressure covered in more depth in the broader server memory and SSD price surge already reshaping UK IT budgets.
Crucially, the supply side offers no quick fix. New fab capacity for memory is unlikely to come online in volume before late 2027 or 2028, indicating a prolonged period of tight supply. Storage vendors cannot design their way around a shortage that deep — the cost has to land somewhere, and it lands on the quote.
All-Flash vs Hybrid vs HDD: Where the Exposure Sits
Not every array architecture is equally exposed. The brief provides a stark comparison: a 30TB QLC SSD capacity cost was 22.6 times higher than an equivalent 30TB HDD capacity cost in Q1 2026. This gap was already wide before the current spike and has only grown as flash contract prices outpace HDD inflation.
Yet demand for flash hasn't collapsed: IDC still records All-Flash Systems commanding 52.6% of external enterprise storage market revenue in Q1 2026, reflecting genuine performance requirements for AI and latency-sensitive workloads that HDD simply can't meet. The tension this creates is visible in vendor behaviour: many data centres are reportedly shifting back to hybrid SSD/HDD architectures specifically because SSD-only deployments have become significantly more expensive to build and expand.
For UK buyers, the practical read is that architecture choice is now a genuine cost lever, not just a performance one. A hybrid array that places hot metadata and active datasets on flash while parking bulk capacity on HDD tiers is directly exposed to less of the NAND spike than an all-flash equivalent, while still carrying the same controller-level DRAM cost exposure regardless of which media sits behind it.
Beyond the Hardware: The True Total Cost of Ownership (TCO) in 2026
While component costs are the dominant inflationary factor in 2026, a complete TCO picture for UK enterprises traditionally includes software licensing, ongoing support contracts, and energy consumption. However, the current, unprecedented surge in DRAM and NAND prices means these hardware components are overwhelmingly driving the immediate increases in array quotes. The impact is staggering: an all-flash architecture for a 25 PB deployment delivering 1,000 GB/s sustained performance saw its 3-year cost increase by approximately 397% from Q2 2025 to Q2 2026, rising from $9.69 million to $48.17 million. This dramatic rise in capital expenditure for the core infrastructure dwarfs other TCO elements for new deployments.
Understanding this shift is critical. UK IT leaders must factor in not just the initial purchase price, but the escalating cost of future capacity upgrades and replacements, which will continue to be impacted by memory market volatility.
On-Premises vs Cloud Storage: A UK Cost Comparison for 2026
The honest answer here is that neither route escapes the underlying memory shortage — the question is who absorbs the volatility first. While the brief highlights that UK data centres will compete with global hyperscalers for limited, high-value memory components, it's understood that larger cloud platforms often have negotiated protections or long-term supply agreements that most UK enterprises buying arrays on standard commercial terms simply don't have access to.
That structural advantage doesn't make cloud storage immune to rising costs — hyperscalers are themselves buying into the same memory market — but it does suggest cloud consumption pricing may re-rate more gradually than a spot-priced on-premise array quote, which is directly exposed to the quarter-by-quarter contract swings detailed above.
For UK IT leaders, this argues for treating the on-premise vs cloud decision as a workload-by-workload exercise rather than an all-or-nothing migration, weighing which datasets genuinely need the low-latency, fixed-cost predictability of on-premise flash against which are better parked on a platform with better-hedged memory procurement. Our storage solution finder is built for exactly this kind of workload-level sizing exercise.
View the data behind this chart
| Q2 2025 | Q2 2026 | |
|---|---|---|
| Cost | $M9.69 | $M48.17 |
Navigating the Volatility: Strategies for UK IT Leaders to Optimise Storage Spend
The single most important mindset shift is accepting that waiting rarely helps. Procurement analysis is blunt on this point: delaying storage purchases may not result in savings, because many organisations are already seeing price increases locked into 2026 contracts before they've even placed an order — the trajectory keeps moving in one direction. Furthermore, procurement teams are facing lead times of 40+ weeks for high-density RDIMM and enterprise configurations, and memory suppliers are shortening quote validity periods, with some quotes now expiring after just 72 hours, indicating high market volatility and uncertainty about future replacement costs.
Several concrete tactics do work. First, right-size the architecture: a hybrid design that limits flash to genuinely latency-sensitive tiers reduces exposure to the steepest NAND increases without sacrificing the performance that matters. Second, look seriously at certified pre-owned capacity for less latency-critical tiers — you can explore refurbished storage options to add capacity outside the current new-build pricing curve. Third, use a proper end-of-life review before committing new budget, since replacing arrays that still have useful service life only adds unnecessary exposure to today's peak pricing.
Finally, financing structure matters as much as unit price in 2026. Spreading a large capital outlay across flexible storage financing solutions can convert a lump-sum price shock into a predictable operating cost, which is particularly valuable when component prices are still actively climbing quarter to quarter rather than settling into a new stable range.
- •Right-size flash vs HDD tiers to reduce NAND-driven cost exposure
- •Treat delay as a risk, not a saving — 2026 contracts are already locking in higher prices, and lead times are 40+ weeks
- •Memory quote validity periods are as short as 72 hours, demanding rapid decision-making
- •Use finance structures to smooth capex against a still-rising cost curve
- •Review true end-of-life status before replacing arrays that still have useful service life
The Road Ahead: Storage Pricing Outlook Beyond 2026
Looking ahead, SLC NAND contract prices are projected to rise by 120–170% in the second half of 2026 compared to the first half, driven by MLC-to-SLC migration and niche application demand. This indicates continued pressure on certain flash types. Furthermore, new fab capacity for memory is unlikely to come online in volume before late 2027 or 2028, indicating a prolonged period of tight supply.
Whichever forecast proves closer to reality, the direction for UK storage buyers is the same: budget for continued array price inflation through the remainder of 2026 and into 2027, rather than planning around a near-term return to 2025-era pricing.
Conclusion: Navigating the New Economics of Enterprise Storage in the UK
The memory shortage isn't a footnote to your next SAN or NAS quote — it is the quote. Controllers and cache ride the same DRAM curve as every server in the data centre, and the SSDs behind them are exposed to some of the sharpest NAND price movements on record. UK IT leaders who treat this as a temporary blip risk repeatedly re-budgeting against a moving target.
The more defensible approach is to architect around the exposure — hybrid where it makes sense, right-sized rather than over-specified, financed to smooth the capital impact — and to make procurement timing decisions based on locked-in 2026 contract realities rather than hope for a near-term price correction that neither TrendForce nor other analysts are currently forecasting.
Sources
Every figure in this article traces to the sources below.
- •Vertex AI Search (citing TrendForce, Bonpain, 199IT) — NAND flash contract prices, Q1 2026 product-level prices
- •TrendForce — Q2 2026 NAND Flash contract price forecast
- •TrendForce — Conventional DRAM contract price increases Q1 & Q2 2026
- •ASC Global — AI data centre DRAM consumption, lead times, structural scarcity
- •Vdura — Enterprise SSD price increase, 25PB AFA cost increase, QLC SSD vs HDD cost
- •IDC — External OEM enterprise storage systems market revenue and growth, All-flash systems market share
- •TrendForce — New fab capacity timeline
- •TrendForce — SLC NAND contract price projection H2 2026
- •VersaLogic — Memory quote validity periods