Regulated firms have two retention problems that disk and cloud handle awkwardly: keeping records intact for years at sensible cost, and being able to show a copy exists that an attacker cannot reach. Tape answers both.
If your business is regulated in Malta, by the MFSA, under the EU’s operational-resilience rules, or simply by GDPR and your own sector’s record-keeping duties, you carry an obligation that ordinary backup is not designed for: keeping certain records complete, recoverable and tamper-resistant for years, and being able to prove it. Daily disk backup is built for fast recovery of recent data, not decade-long retention, and cloud retention quietly accumulates cost and raises its own residency questions. This is the gap LTO tape fills, and it is why tape has not gone away in regulated industries even as everything else moved to disk and cloud. This guide explains where tape fits a compliance-retention strategy and, just as importantly, where the obligation stays yours and the hardware is only one input. If you are choosing the tape system itself, see our LTO buyer’s guide.
Why tape suits retention specifically
Tape matches the shape of a retention obligation better than disk or cloud because of four properties that happen to line up with what regulators care about. It is air-gapped: a written, ejected cartridge is physically offline, so a ransomware strain or a malicious insider on the network cannot reach, encrypt or delete it. It is long-lived: LTO media has a proven archival life of around 30 years, far longer than a disk left spinning or shelved. It is cheap at rest: tape costs a fraction of disk per terabyte and draws no power sitting in storage, which matters when retention runs to many years and terabytes. And it can be made immutable: written once and not rewritten, optionally on WORM (write once, read many) media, so the record cannot be quietly altered after the fact. Air gap, longevity, low cost and immutability are exactly the qualities a retention rule is reaching for.
The distinction that matters: retention is not the same as backup
It is worth separating two things that often get lumped together, because they need different designs. A backup exists so you can recover recent data quickly after a failure; it is about getting back to yesterday. Retention exists so you can produce a specific record, intact, years later, because a rule or a regulator requires it; it is about reaching back to a fixed point in the past and proving nothing changed. A fast disk backup that overwrites itself every few weeks is good at the first job and useless at the second. Tape, written and set aside on a defined schedule, is built for the second. A sound strategy runs both: disk for operational recovery, tape for the long retention copy, which is the disk-to-disk-to-tape pattern we build most often.
What the rules actually expect
The common thread across the regimes a Maltese firm deals with is not “use tape”, it is that records must be retained for a defined period, kept intact and confidential, and be recoverable on request, with the resilience to survive an incident. GDPR and Maltese data-protection law set retention and integrity expectations for personal data. The NIS2 directive and, for financial entities, the Digital Operational Resilience Act (DORA) put backup, retention and tested recovery squarely on the board’s responsibilities, with an explicit focus on surviving and recovering from a cyber incident. MFSA-regulated firms carry sector record-keeping obligations on top. None of these mandates a particular technology, but air-gapped, immutable, long-life tape is one of the cleanest ways to evidence that the retained copy is intact, confidential and beyond the reach of the attack that hits production.
WORM tape and the integrity question
Where a rule requires that a record cannot be altered after it is written, LTO supports WORM (write once, read many) media. A WORM cartridge can be written and appended but not overwritten or erased, so it provides a hardware-level guarantee that the retained record is the original. Combined with the barcode tracking and audit logs an actiData library provides, this gives you a defensible chain: which cartridge holds which records, when it was written, and that it has not been changed. For firms that have to demonstrate integrity, not just possession, WORM media is the detail that turns a tape archive into an evidence-grade one.
Building it: the 3-2-1 rule with a genuine offline copy
The practical design is the long-standing 3-2-1 rule given a retention twist: at least three copies of the data, on two different media, with one copy offline and offsite. In a regulated Maltese deployment that usually means production data plus a fast disk backup for recovery (often a Synology NAS), and an LTO tape copy written on a defined retention schedule and removed to a secure location. The tape copy is the one that satisfies the offline and long-retention parts of the obligation. Sizing it is a matter of how much you must retain, for how long, and how often a new retention point is taken; that determines the cartridge generation and whether a drive, autoloader or library is the right system, which our buyer’s guide covers.
Where this lands by sector
The retention case is sharpest in the sectors Malta is built on. For finance, banks, payment firms, fund administrators and insurers hold transaction and client records for years under MFSA and EU rules, and DORA puts tested recovery on the agenda; an air-gapped tape archive is a clean way to evidence both retention and resilience. For iGaming, operators retain player and transaction history and must be able to produce it; tape is the low-cost, tamper-resistant tier behind the live platform. Healthcare and professional services carry their own long-retention duties on patient and client records. In each case tape is not the whole answer, it is the offline retention layer beneath the disk and systems that do the day-to-day work.
Could this be grant-funded?
Investment in compliant backup, retention and operational-resilience infrastructure can align with Malta Enterprise schemes such as Digitalise Your SME or the Smart & Sustainable Investment Grant, provided you apply before committing to the purchase. Read our guide to Malta Enterprise grants and see if your project qualifies, or talk to us about the quotation and technical benefit statement an application needs.
How Sirap builds it
We design the retention scheme to your obligations: the schedule, the generation and system tier, WORM media where integrity has to be provable, the air-gap and offsite handling, and the documentation that makes the archive auditable rather than just present. We integrate the actiData drive or library with your backup software, supply genuine LTO media locally, and support it from Malta. We supply the infrastructure and the design; your compliance team and advisers own the regulatory sign-off. Tell us what you have to keep and for how long, and we will build the retention tier around it.
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Kurt Paris
With an MSc in Software Engineering, and over 15 years in IT Management, Kurt Paris leads technology strategy at Sirap. Zebra Technologies, Domino and Cisco-certified, he helps Maltese businesses build resilient storage & backup infrastructure, Machine Vision & AutoID Automation

