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Managed IT · Servers

Keep the server in the closet, or retire it?

How an office server compares with cloud services on cost, speed, security and support, with a decision rule you can apply this week.

What the server actually does

Five-year cost, both ways

A decision rule by workload

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The short answer

For most small businesses with 10 to 100 people, the office server should be retired when its hardware or operating system reaches end of support, and its jobs moved to cloud services: files to SharePoint, OneDrive or Google Drive, email to Microsoft 365 or Google Workspace, sign-in to a cloud directory, and business applications to their vendor’s cloud version. Keep an on-premise server when an application has no cloud option, when large files must open instantly over the local network, or when internet access in the office is unreliable. Many offices end up hybrid for a few years. Decide workload by workload, not all at once.

First, list what the server does

“The server” is usually several jobs in one box. Write them down before comparing anything.

  • File sharing: the shared drive with department folders.
  • Sign-in and permissions: Active Directory for logins, group policy and printer mapping.
  • Email: an Exchange server, in some older offices.
  • Line-of-business software: accounting, practice management, ERP or a database.
  • Other roles: print server, scanning destination, backups for other machines, remote access.

Each job has its own cloud answer, and some have none. That is why the decision is rarely all or nothing.

The end-of-support clock

Support dates often force the decision. According to Microsoft’s lifecycle pages:

  • Windows Server 2016 extended support ends January 12, 2027.
  • Windows Server 2019 extended support ends January 9, 2029.
  • Windows Server 2022 leaves mainstream support on October 13, 2026 and receives security updates until October 14, 2031.
  • Exchange Server 2019 reached end of support in October 2025.

A server running an unsupported operating system stops receiving security fixes. If yours is on Windows Server 2016, the choice is no longer whether to act, but which way: new server and new licenses, or a move to the cloud.

Cost: compare five years, both ways

The cloud looks more expensive month to month and the server looks cheaper, until you count everything. Put both sides on a five-year sheet.

On-premise

Server hardware, Windows Server licenses and client access licenses, backup software and storage, a UPS, warranty extensions, power and cooling, and the labor to patch, monitor and eventually replace it. Then the next server in five years.

Cloud

Per-user subscriptions, extra storage if you exceed the included amount, a cloud backup service, possibly faster internet with a backup line, and one-time migration labor.

Many businesses already pay for the cloud side. Microsoft 365 business plans include SharePoint storage of 1 TB per organization plus 10 GB per license, according to Microsoft’s service limits, plus each user’s OneDrive. A 40-person office gets about 1.4 TB of shared storage before buying more. If your shared drive fits, file storage is already in the subscription you have.

Performance

A local server serves files at network speed. The cloud serves them at internet speed, though sync clients keep frequently used files on each laptop so most opens feel local.

  • Cloud works well for: documents, spreadsheets, PDFs, email and web-based business apps.
  • On-premise can still win for: very large files such as CAD drawings, video and big image libraries that many people open and save all day, and older desktop databases that break over a sync client.
  • Watch the sync limits: Microsoft recommends syncing no more than 300,000 files across the libraries a user syncs. Large shared drives need restructuring before they move.

Security and resilience

Neither option is automatically safer. The difference is who does the work.

  • On-premise: you or your IT provider must patch the operating system, protect remote access, monitor logs, keep off-site backups and plan for fire, flood and theft. A server in a closet is a single point of failure.
  • Cloud: the provider runs the infrastructure, patches the platform and keeps data in multiple data centers. You still own account security: multi-factor authentication, permissions, sharing settings and a separate backup of your cloud data.

Either way, backups must be tested. Copies that have never been restored are a hope, not a plan.

Not sure which of your server’s jobs could move, or how urgent it is? Our free Technology Health Assessment takes 30 minutes of data collection and gives you a plain-language report the next day rating IT operations, applications, integration and business continuity, with next steps in order.

A decision rule by workload

  1. Email on a local server: move it. Hosted email is the clear default for small businesses.
  2. Shared files under the storage you already have: move to SharePoint, OneDrive or Google Drive, restructured for permissions.
  3. Sign-in and policies: move to a cloud directory with device management once files and apps no longer need the local domain.
  4. Business application with a vendor-hosted version: move when the vendor’s cloud version covers your needs, often at your next renewal.
  5. Application with no cloud option, or huge files used all day: keep a smaller, supported server, or host it on a cloud virtual machine if internet access is reliable.
  6. Poor or unreliable internet: fix the connection and add a backup line before moving anything critical.

A worked example

A 35-person accounting office runs one Windows Server 2016 machine. It holds a 600 GB shared drive, handles logins and printer mapping, and runs a desktop tax application that the vendor now also offers as a hosted service. The server’s warranty ended last year.

Replacing it means new hardware, new Windows Server and client access licenses, a backup upgrade and setup labor, then the same cycle again in five years. Moving means the shared drive goes to SharePoint, which already has about 1.35 TB of included storage for 35 licenses; the tax application moves to the vendor’s hosted version at renewal; and laptops join a cloud directory with device management. The office keeps the old server read-only for 60 days as a safety net, then retires it before Windows Server 2016 support ends. The details will differ for you, but the method is the same: price each job separately.

What a hybrid period looks like

Most moves happen in phases over several months. Email usually goes first, then files, then sign-in, while the server keeps running one application until it is replaced. Set a target date to turn the server off, and do not renew its warranty or licenses past that date. Keep a final full backup of the server for as long as your record-keeping rules require, stored somewhere you can still read it.

JLB USA provides managed IT for businesses with roughly 25 to 100 employees, including Microsoft 365 and Google Workspace, backups with tested restores, and server retirements. When the application is the sticking point, our systems integration team can connect a cloud replacement to your accounting or CRM. Comparing platforms first? Read Microsoft 365 vs Google Workspace.

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Questions we hear

Is cloud cheaper than an on-premise server for a small business?

Often, over five years, once you count server hardware, licenses, backups, power, labor and the next replacement. Many businesses already pay for cloud file storage in their Microsoft 365 or Google Workspace plan.

When should a small business keep an on-premise server?

When an application has no cloud option, when many people work on very large files all day, or when office internet is unreliable. Otherwise, retire the server at its next end-of-support or hardware refresh.

When does Windows Server 2016 support end?

Microsoft’s lifecycle page lists January 12, 2027 as the end of extended support for Windows Server 2016. After that it no longer receives security updates.

Is the cloud more secure than an office server?

The cloud provider handles infrastructure security, but you still own account security, permissions and backups. A well-run cloud setup removes the patching and physical risks of a server in a closet.

Can we move to the cloud in stages?

Yes. Most small businesses move email first, then files, then sign-in, and keep a server for one application until it is replaced.

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