Back up your data as often as you can afford to lose it. If losing four hours of work would hurt, back up at least every four hours; if losing a full day would be painful but survivable, nightly is your floor. For most Treasure Coast small businesses that works out to continuous or hourly backups for servers and line-of-business databases, daily backups for Microsoft 365 or Google Workspace, and daily or weekly backups for individual workstations.
What is the simple rule for how often businesses should back up data?
The rule has a formal name in the disaster recovery world: the recovery point objective, or RPO. It is the maximum amount of work, measured in time, that you are willing to re-create after a failure. Set that number first, then schedule backups at least that often. Everything else in backup planning flows from it.
A useful way to find your number is to picture the worst moment for a loss. For a Vero Beach dental office, that is the end of a full Monday of charting, imaging, and payments. For a Stuart law firm, it is the afternoon a settlement agreement was finalized. For a marine service yard in Fort Pierce, it is the day three work orders were closed and invoiced. Ask what it would cost in staff time, client trust, and billing to redo that work, and you will quickly settle on a tolerance of minutes, hours, or a day.
Two cautions. First, be honest about who would do the re-keying. A day of lost data is rarely a day of recovery; it is usually two or three days of staff reconstructing what happened from email and paper. Second, the answer differs by system. Your accounting database and your marketing photo library do not deserve the same schedule.
Recommended backup schedules by system type
Servers and line-of-business applications
Practice management, accounting, ERP, and SQL Server databases change constantly through the workday, so they need frequent backups. A modern image-based backup appliance can snapshot a server every 15 minutes to every hour with little performance impact. We generally recommend hourly during business hours and nightly full-consistency checks, with one copy replicated off site to a data center outside the hurricane cone. If you run a legacy application that cannot tolerate hourly snapshots, an application-aware backup once every few hours plus transaction log backups every 15 minutes gets you the same protection.
Microsoft 365, Google Workspace, and other SaaS
Cloud email and files are resilient against hardware failure, but the vendor is not responsible for restoring what your staff delete, what ransomware encrypts through a synced folder, or what a departed employee took with them. A third-party Microsoft 365 backup that captures mail, OneDrive, SharePoint, and Teams at least once a day is the standard. Most services run several times a day by default, which is plenty for most offices.
Workstations and laptops
If your staff save work to the server or to OneDrive and SharePoint, workstations hold very little unique data and a weekly image is enough to speed up rebuilds. If people keep files on their desktops, either move the data or back the machines up daily. Laptops that travel with sales staff or field supervisors deserve daily cloud backup because they are the most likely devices to be dropped, stolen, or left in a truck during a storm.
Phones, tablets, and field devices
These usually hold photos, signatures, and notes that feed into another system. Make sure the apps you rely on sync to a company account, not a personal one, and treat that sync as the backup. Verify it once a quarter.
Continuous backup vs nightly backup: which is right?
Nightly backup was the universal answer for decades because tape and slow disks could not keep up with anything faster. Today the choice is about cost and risk, not technology.
- Nightly is adequate for businesses where a day of re-entry is a nuisance rather than a crisis, such as a small nonprofit whose records live mostly in a cloud donor platform.
- Hourly or every 15 minutes is the sweet spot for most offices with a local server. The incremental cost is modest and the difference between losing 15 minutes and losing eight hours is enormous during a ransomware event.
- Continuous replication, where every change is mirrored to a second system in near real time, makes sense for practices with heavy transaction volume or regulatory pressure, and for anyone who has calculated that an hour of downtime costs more than the service does.
A related decision is how long to keep old versions. Ransomware often sits quietly for weeks before it triggers, so a backup set that only keeps seven days of history can be fully poisoned. We recommend at least 30 to 90 days of retention, with monthly snapshots kept for a year or longer where regulations such as HIPAA or your cyber-insurance policy require it.
Does OneDrive or Dropbox count as a backup?
No, and this is the question we get most often from owners in Sebastian and Port St. Lucie. File sync services mirror your working folders to the cloud and to every device connected to the account. That is convenient, but it means a deletion, an accidental overwrite, or an encrypted file is faithfully synced everywhere within seconds. Version history helps with single-file mistakes, but it has limits on age and count, and it is not built for restoring an entire company after a bad day. Sync is for collaboration. Backup is a separate, independent copy that only you control and that the sync engine cannot touch.
What about hurricane season?
From June through November, backup frequency is only half the story. Location matters just as much. A backup appliance sitting next to the server it protects will flood, lose power, or be unreachable at the same time the server does. Every business on the Treasure Coast should have at least one copy of its data outside the region, and it should verify that copy in May, not in September when a storm is already named.
Power is the other seasonal wrinkle. Brownouts and repeated outages corrupt databases and interrupt backup jobs, so pair your backup schedule with a properly sized UPS that gives the server time to shut down cleanly. Our backup and disaster recovery service includes a pre-season readiness check for exactly this reason.
How do you know the backups are actually working?
A schedule you never test is a hope, not a plan. At a minimum:
- Review the backup job log weekly, or have a managed service alert you on any failure.
- Restore a random file monthly and confirm it opens.
- Boot a full server image in an isolated test environment at least quarterly and log into the application.
- Time that restore so you know your realistic recovery time, not the number on the brochure.
We see too many businesses discover that their backups stopped six months earlier because a job silently failed after a password change. The frequency you choose only matters if the copies exist and can be restored.
If you are not sure how much data you would lose today, we will find out for you. MainSail Data offers a free backup and recovery assessment for businesses across Indian River, St. Lucie, and Martin counties. Call (772) 794-1194 or request a consultation online.