What Does Storage Really Cost? Cloud vs. TrueNAS Over 5 Years

“Move it to the cloud, it’s cheaper” — that sentence often doesn’t survive the spreadsheet. Cloud storage is cheap on the price sheet, but total cost of ownership (TCO) only shows up in operation: egress fees, API calls, replication, premium tiers, and the simple fact that data sits there permanently. This article does the honest math — and shows when on-premises storage with TrueNAS clearly wins.

The hidden cost of cloud

Price per TB is just the tip of the iceberg. On top come:

• Egress fees — uploading data is cheap, getting it back out costs. On restores, migrations or active use, this becomes the main cost driver.
• API/request cost — every GET/PUT/LIST counts, especially for backup and archive workloads with many small objects.
• No lasting volume discount — the subscription scales linearly with data growth. What looks cheap today is a fixed, growing monthly load in three years.
• Premium for performance — low latency and high throughput cost extra in the cloud.

The cost of on-premises TrueNAS

TrueNAS is a one-time investment plus predictable operation:

• Hardware — one-time, depreciated over 5 years, often usable well beyond.
• Power & heat — plannable and moderate on modern platforms; the configurator shows the annual figure directly.
• Support/license — predictable as TrueNAS Enterprise with an SLA, or free as the Community Edition.
• Egress = €0 — a restore runs over your own line, not your credit card.

Worked example: 100 TB over 5 years

Take 100 TB of usable storage, held permanently and used regularly (backups, file services, VM storage):

Item	Cloud (object storage)	On-premises TrueNAS
Storage per month	ongoing, rising with growth	included in the investment
Egress on use/restore	per TB, often the biggest block	€0
API/request cost	ongoing	—
Hardware	—	one-time
Power (24/7)	—	plannable (configurator shows €/yr)
After 5 years	total keeps rising linearly	investment amortized, then only power

Exact numbers depend on provider, region and access pattern — but the pattern is robust: the larger, longer-lived and more active the dataset, the sooner the break-even tips toward TrueNAS. For actively used, growing data it is often reached within the first two years.

When the cloud still wins

To be fair: for bursty, short-lived loads, global distribution and projects without predictable volume, the cloud is strong. So the honest answer is rarely “either/or” but hybrid — elasticity from the cloud, the stable, large and sensitive dataset on-premises. More: On-premises vs. cloud and The cloud is not a backup.

Run the numbers yourself

The biggest unknown is usually your own power and capacity needs. The TrueNAS configurator makes exactly that transparent: pick model, disks and RAID — and you instantly see usable capacity, power draw and annual power cost. That puts the on-premises side of the TCO on the table in minutes.

→ Calculate capacity & power cost in the TrueNAS configurator

Conclusion

Cloud storage isn’t inherently expensive — but after 5 years the bill often looks different than on day one. For large, long-lived, actively used datasets, on-premises TrueNAS regularly beats the cloud on total cost, above all through €0 egress and no ongoing monthly load.

As an authorized TrueNAS reseller in Germany, we’re happy to run your case concretely. Build your system in the configurator or get in touch for a no-obligation quote.