Whitepaper · H2 2026 · Ceph Tentacle & OpenStack Gazpacho

Stop buying the same terabyte twice.

How to reuse your multi-vendor enterprise storage, decide when a new Ceph is genuinely justified, and spend what's left of your 2026 budget without buying tomorrow's technical debt.

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What you get

The questions that separate a defensible architecture from a defensive purchase.

Reuse the arrays you already own? A shared Ceph for the new capacity? A dedicated cluster per OpenStack cloud?

TrendForce's NAND forecast points to +70-75% QoQ in Q2 2026, with allocation pressure that won't let up in H2. The shortage isn't over — it has changed shape. Buying on reflex now pays four taxes a year for the next five.

This whitepaper is neither a technology catalogue nor a brand recommendation. It's the questionnaire and the tests we run internally before proposing any change to a client — written for architects, CIOs and storage teams with open budget in H2.

Inside you'll find

  • 20 questions that decide the architecture — 7 for the business, 13 technical. Where you answer with evidence you're fine; where you answer with adjectives, you've found your next project.

  • The 5 tests for an array to stay — not the vendor's name: concrete Cinder integration, real headroom, workload class, lifecycle and exit path. Five yeses, or the array doesn't make it.

  • The 5 architecture patterns with their when, upside and risk — arrays via Cinder, shared Ceph, dedicated Ceph, hyperconvergence and specialised silo. When each one is the answer, and when it's a preference in disguise.

  • A decision calendar to 31 December — 5 milestones: August (inventory what you have), September (defend the architecture), October (PoC with real workloads), November (migration ready) and December (buy architecture, not inventory).

  • A 2026 budget model with 7 line items — 45% hardware, 12% network, 10% backup/DR, 10% architecture and benchmarking, 10% contingency, 7% training, 6% observability. A starting point for the trade-off conversation, not a quote.

Who this is for

  • Architects, CIOs and storage teams with open budget in H2 2026.
  • Teams evaluating Ceph Tentacle or OpenStack Gazpacho for real, not as last year's PoC.
  • IT procurement leads who need to justify the decision to finance without leaning on a brand.
Download the whitepaper