Third-party maintenance has spent years being framed as a server-cost hack. That undersells it. Independent guidance now defines TPM explicitly as covering servers, storage devices and networking equipment together, and the commercial pressure is identical across all three: Maven IT Solutions puts typical OEM renewal increases at 8% to 20% a year, compounding on multi-year contracts regardless of whether the box in question is a compute node, a SAN controller or a core switch. For storage arrays specifically, ThomasTech puts OEM post-warranty support above $50,000 a year against $15,000 to $25,000 under TPM for similar coverage — a gap wide enough to fund a genuine refresh elsewhere. This piece works through the storage and network case with the same rigour UK buyers already apply to servers, including cutting OEM renewal costs.
View the data behind this chart
| Storage array (generic) | Switch/router (generic) | PowerScale 12-node | HPE 3PAR StoreServ 8200 | NetApp FAS8200 HA cluster | |
|---|---|---|---|---|---|
| OEM annual cost | $k50 | $k10 | $k60 | $k25 | $k40 |
| TPM annual cost | $k15 | $k3 | $k24 | $k10 | $k16 |
Why the TPM conversation can't stop at servers
Most UK third-party maintenance conversations start — and often end — with servers. That's a mistake in 2026. Independent guides from ThomasTech, Evernex and Service Express are now explicit that third-party maintenance (TPM) is a support model for servers, storage devices and networking equipment together, priced as an alternative to OEM support once the manufacturer's warranty or end-of-service-life date passes. The commercial logic doesn't change by asset class: it's the same post-warranty pricing cliff, just applied to a SAN controller or a core switch instead of a rack server.
The pressure behind that logic is concrete. Maven IT Solutions puts typical OEM renewal increases at 8% to 20% a year, frequently built directly into multi-year agreements — meaning a storage array or switch fleet under a three-year OEM renewal can be locked into a steep, compounding cost curve before anyone revisits the contract. If your organisation has already worked through the server side of this problem via cutting OEM support renewal costs, the same arithmetic is waiting in the storage and network racks next to it.

What TPM for storage and network actually covers
Definitions converge on a broad scope. Evernex describes third-party IT support as covering data-centre equipment including servers, networking equipment, storage devices and power supplies. Service Express frames TPM as an alternative to OEM server, storage and network equipment support used specifically to extend the life of data-centre kit rather than forcing an immediate refresh. Neither source slices this by storage sub-type — SAN, NAS, object or hyperconverged platforms all fall under the same broad 'storage devices' or 'storage arrays' language, which matters if you're trying to map TPM coverage against a genuinely mixed estate.
The practical takeaway for a UK estate manager is that a single TPM relationship can, in principle, span the same categories an OEM support agreement already does. Actual coverage still comes down to what a given provider will contractually commit to for your specific hardware list, so treat the breakdown below as scope to negotiate against, not scope you automatically get.
- •Servers — compute nodes, blade and rack systems
- •Storage arrays — SAN, NAS and other storage devices
- •Network equipment — switches, routers and related infrastructure
- •Power supplies — data-centre power components
OEM vs TPM: the cost gap on real storage and network platforms
Where the numbers get specific, the gap is large enough to change a budget conversation. ThomasTech estimates OEM post-warranty support for storage arrays can exceed $50,000 a year, against $15,000 to $25,000 under TPM for similar coverage. For switches and routers, the same source puts OEM support at roughly $10,000 a year versus $3,000 to $6,000 under TPM — a smaller absolute figure, but a comparable proportional gap, and one worth tracking separately from the storage numbers rather than blending the two asset classes into one estimate.
OSI Global's platform-level estimates go further, naming specific storage systems. A Dell EMC PowerScale 12-node platform is put at $60,000 to $120,000 a year under OEM support versus $24,000 to $50,000 under TPM. An HPE 3PAR StoreServ 8200 comes in at $25,000 to $50,000 under OEM versus $10,000 to $20,000 under TPM. A NetApp FAS8200 HA cluster runs $40,000 to $75,000 under OEM versus $16,000 to $30,000 under TPM. These are illustrative platform figures rather than UK list prices, so the discipline for a UK buyer is to use them as a sense-check on shape and scale, then get an actual GBP quote for the exact model, firmware level and support tier in place — including through storage third-party maintenance and network third-party maintenance routes specifically.
Why the savings percentage moves depending on what you compare it to
Multiple sources land on similar-looking savings ranges, but they're not all measuring the same baseline, and conflating them is the most common mistake in a TPM business case. The Gartner-cited Smart 3rd Party market guide states TPM contracts can offer 50% to 70% savings off net OEM support prices — net, not list. Servnet UK cites the same 50% to 70% range against OEM net prices. Extended Tech Solutions separately reports 40% to 70% savings versus OEM support for enterprise hardware more generally, without pinning down the baseline as precisely. OSI Global's archival storage figures show typical customer outcomes of 55% to 65%, described as platform- and SLA-dependent.
The practical implication: before you present a savings percentage to your board, confirm whether the OEM number you're comparing against is list price, negotiated net price, or your actual renewal quote — the percentage saved changes materially depending on which one anchors the comparison. On the life-extension side, Servnet UK frames TPM as capable of extending useful service life by 3 to 5 years, and up to 7 years in some cases — presented explicitly as an indicative outcome rather than a guaranteed SLA commitment, which is the right way to treat it in a business case too.
Where the case gets harder: firmware, spares and platform age
TPM for storage and network estates isn't friction-free, and the honest version of this analysis has to say so. Firmware and software entitlement is the most commonly raised concern: some OEMs tie ongoing firmware and patch access to an active OEM support contract, which means moving to TPM can leave a grey area around who provides updates and on what terms. The evidence behind this piece doesn't point to a universal fix for that — which is itself the point. It's contract-specific, varies by manufacturer and product line, and needs to be nailed down in writing with any TPM provider before signing, not assumed.
Parts availability follows a similar pattern on genuinely old or niche hardware — the older and less common the platform, the more a TPM provider's spares-sourcing network matters, and the less it can be taken on faith. On newer architectures, the public guidance behind this analysis is written around established server, storage and network categories rather than the newest composable or NVMe-based platforms specifically, so buyers should verify a provider's stated capability for their exact hardware generation rather than assume blanket coverage extends to the newest kit in the rack.
View the data behind this chart
| Layer | Detail |
|---|---|
| Servers | Compute nodes, blade and rack systems |
| Storage arrays | SAN, NAS and other storage devices |
| Network equipment | Switches, routers and related infrastructure |
| Power supplies | Data-centre power infrastructure components |
Fitting TPM into a 2026 IT strategy, not just a maintenance budget line
The strongest UK case for extending TPM beyond servers isn't really about maintenance cost in isolation — it's about what that cost avoidance funds elsewhere. With OEM renewal increases running at 8% to 20% a year per Maven IT Solutions, every storage array or switch fleet left on an OEM contract past its natural refresh point is a compounding drag on budget that could otherwise support a hybrid IT migration, a genuine hardware refresh, or simply absorbing cost pressure elsewhere in the estate. Holding storage and network gear on TPM for the 3-to-5-year (up to 7-year) window Servnet UK describes is best framed as buying deliberate time, not indefinitely deferring a decision.
There's a secondary, quieter benefit: extending the useful life of an existing storage array or switch fleet by several years, rather than replacing it on an OEM-driven cycle, means fewer forced hardware replacement events over the same period — a natural by-product of the life-extension case already built into the TPM argument, and one worth noting in any 2026 procurement paper that also has to speak to equipment lifecycle commitments.
Choosing a TPM partner: a UK evaluation framework
Because the definitions of TPM scope are broad, the differentiation between providers happens in contract detail, not marketing language. For a UK storage and network estate, the criteria worth scoring a shortlist against are pricing trajectory, coverage breadth across your actual vendor mix, clarity on firmware and software access, spares and parts logistics, SLA response commitments, and how convincingly the provider can extend useful asset life without turning into an open-ended risk. The comparison below sets out how OEM and TPM approaches typically differ against each of those criteria — use it as a scoring template against actual quotes, not as a substitute for them.
For UK-specific due diligence, push for contractual clarity on three things in particular: exactly how firmware and software updates will be handled for each platform, where spares are physically held and what that means for response times if your estate spans Great Britain, Northern Ireland and any EU-based sites, and what happens contractually if a specific part becomes genuinely unavailable. A credible TPM provider should be able to answer all three in writing before you sign, not after. Reviewing TPM vs. OEM 5-year TCO modelling alongside this checklist gives a fuller picture before committing budget.
A worked UK scenario: buying time before a storage refresh
Consider a UK organisation running a mixed estate: a NetApp FAS8200 HA cluster handling primary storage, an HPE 3PAR StoreServ 8200 supporting a secondary workload, and a fleet of switches nearing OEM end-of-service-life. Under OSI Global's illustrative figures, OEM support alone would put the NetApp cluster at $40,000 to $75,000 a year and the 3PAR array at $25,000 to $50,000 a year — before the 8% to 20% annual renewal increases Maven IT Solutions describes start compounding on whatever multi-year contract is in place. The switch fleet, under ThomasTech's estimate, adds roughly $10,000 a year in OEM support on top.
Moving the same three platforms to TPM support brings the NetApp cluster down to $16,000 to $30,000 a year, the 3PAR array to $10,000 to $20,000 a year, and the switch fleet to $3,000 to $6,000 a year — while, per Servnet UK's framing, potentially buying 3 to 5 years, and in some cases up to 7, before a refresh becomes unavoidable. The pitfall most organisations hit isn't the maintenance switch itself; it's treating it as a permanent decision rather than a deliberately time-boxed one. The point of moving storage and network estates to TPM isn't to avoid a refresh forever — it's to control when it happens and what it costs in the meantime. Where that runway is genuinely needed, starting with a hardware maintenance quote against your actual asset list is the fastest way to turn these illustrative ranges into a real UK number.
Sources
Every figure in this article traces to the sources below.
- •ThomasTech — TPM vs OEM support cost comparison for storage arrays and switches
- •Evernex — industry guide defining TPM scope across servers, storage and networking
- •Service Express — TPM as an alternative to OEM server, storage and network support
- •Smart 3rd Party — Gartner-cited market guide on TPM savings ranges
- •Maven IT Solutions — OEM renewal price increase and TPM pricing structure data
- •Servnet UK — OEM support renewal costs and TPM life-extension framing
- •OSI Global — platform-level OEM vs TPM cost estimates for named storage systems
- •Extended Tech Solutions — 2026 TPM pricing guide and savings ranges
View the data behind this chart
| OEM approach | TPM approach | UK buyer implica… | |
|---|---|---|---|
| Pricing trajectory | Rises 8-20%/year | Flat or declining | Plan for renewal shocks |
| Coverage scope | Single OEM only | Multi-vendor estate | Fewer support contracts |
| Firmware and software… | Full native access | Varies by OEM policy | Check contract terms |
| Parts and spares… | OEM depot network | Independent stock pools | Confirm SLA response |
| Useful life extension | Ends at OEM's EOSL date | 3-5 years, up to 7 | Extends refresh runway |
| Cost vs OEM support | Baseline (100%) | 50-70% below OEM | Frees capex for refresh |
