Unlimited Systems Retires HostedFTP and Removes the 100GB Ceiling for Practice Databases

Unlimited Systems builds financial software for specialty medical practices across the United States, including oncology practices. Its platform handles revenue cycle management for complex healthcare reimbursement workflows.

Supporting those practices means handling their data. When a practice comes onto the platform, and when something goes wrong and needs diagnosing, the practice sends Unlimited Systems its database: the financial record of a medical practice, HIPAA-regulated end to end, and growing with every patient the practice treats. Moving those databases in, and delivering reports back out, is a file-transfer workload that sits directly between Unlimited Systems and its clients.

Two Transfer Applications and a 100GB Ceiling

For years that workload ran on two separate file-transfer applications operating side by side. The legacy system, HostedFTP, carried hard limits: no single file larger than 100GB, and 5TB of total capacity.

Both numbers had stopped fitting the business. A specialty practice's database grows with the practice, and the databases Unlimited Systems needed to receive were closing in on the 100GB ceiling. A file over that line could not come in through the standard path at all, and the moments a practice sends its database are the worst possible moments for the path to refuse it: onboarding, when a new client is waiting to go live, and troubleshooting, when an existing client has a problem and support needs the data to diagnose it.

The total capacity was no better a fit. When Unlimited Systems migrated, the data in scope came to 11TB, more than double everything HostedFTP could hold. The routine volume was heavy on its own: 50GB to 100GB moved every week, plus one or two transfers of roughly a terabyte each month.

Running two applications compounded all of it. Client accounts and folders lived in a split estate, and the file handling around the transfers was manual, with files reviewed and cleaned up by hand. Unlimited Systems had outgrown its transfer layer in every dimension at once: per file, in total, and in the number of systems it took to operate.

The Transfer Layer Was the Clients' Front Door

Replacing it was not an internal matter. The transfer layer faced outward. Specialty practices pushed database files in over SFTP, many using FileZilla or whatever client their staff already knew, and reports flowed back out through per-client folders. Any replacement had to keep those paths open while they were in active use, because a practice mid-onboarding or mid-support-case cannot be asked to wait.

That set the requirements. One platform had to carry both directions of the exchange, so accounts and access were administered once instead of twice. It had to speak the standard protocols clients already used, so no practice had to install or learn anything. And it had to accept files far larger than the databases clients were sending, so the old ceiling would not simply reappear. Unlimited Systems selected Files.com as that single platform.

A Phased Cutover Across 11TB

Files.com became the one surface between Unlimited Systems and its practices: databases in, reports out, one set of accounts behind both.

The cutover ran in phases, sequenced by workload and team. The database-transfer path and the Customer Support users moved first, and the data came across on a Files.com sync, workload by workload, with 11TB in scope. The migration ran alongside the daily work instead of pausing it.

External access was rebuilt in bulk rather than by hand. Each practice received its own Files.com account through the platform's bulk user creation tool. Clients continued to upload over SFTP, through FileZilla, or straight from a browser. Files arrived in a structured shared-services folder tree for the Customer Support, integration, and data-engineering teams, while internally generated reports went into a folder for each customer.

A 180GB Database Through the Standard Path

With the rollout complete, Unlimited Systems retired HostedFTP and replaced a split, capped transfer estate with a single Files.com platform.

In April 2026, a specialty-practice client uploaded a single 180GB database file through the same intake path every client uses—nearly double the old 100GB ceiling, with no workaround or special arrangement.

Two file-transfer applications became one. Accounts, folders, and access are administered once, and both directions of the client exchange run on the same platform. The routine volume runs there too, including the terabyte-scale monthly transfers alongside every onboarding and troubleshooting upload.

The Size of the File No Longer Decides

The practices themselves changed almost nothing. A client that sent its database over SFTP before sends it over SFTP now. A client on FileZilla is still on FileZilla, and a client that prefers a browser uploads through one. What changed is the platform underneath them, and with it the question that used to hang over every onboarding: whether this practice's database would fit through the front door. Unlimited Systems replaced its transfer layer with Files.com without asking a single client to change how they send files, and the old 100GB ceiling no longer decides whether the standard path works.