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Backing Up Drone Data, Site Photos and Large Project Files

Site photos, drone surveys and large model files are easy to overlook in backup plans. Here is how to protect them without ballooning storage costs.

3 min readBy Ironfield Cyber Team

Ask a contractor what is in the backup plan and you will hear about the accounting system, the email and the file server. Ask where the drone surveys, progress photos and large model files live and the answers get vaguer. They sit on a superintendent's tablet, a personal cloud account, an external drive in a truck or a folder nobody has opened since closeout.

Those files matter. Progress photos and survey data can settle a dispute about what was installed and when. Models and as-built records are deliverables. Losing them, or losing control of them, costs real money.

Why large field files get missed

Standard backup jobs are built around servers and business applications. Field data is different in several ways.

  • It is created on mobile devices and cameras, far from any server.
  • Files are large, so people avoid syncing them over cellular connections.
  • Ownership is unclear. Is it the project team, the company or the owner's platform?
  • Retention needs vary by contract, and nobody wrote them down.

The result is data with no home and no copy.

Step one: inventory what you create

Make a short list by project type.

  1. Photos and video: progress, safety, pre-construction condition and incident documentation.
  2. Drone and survey data: orthomosaics, point clouds, stockpile and grading surveys.
  3. Models and drawings: working files, coordination models and issued sets.
  4. Field forms and daily logs: often in a cloud app, but exportable.
  5. Equipment and telematics data: useful for cost and warranty disputes.

For each, note where it is created, where it is stored and who is responsible.

Step two: pick a home and a rule

Choose one system of record for each category and make it the default. A company-controlled cloud storage location with project folders is usually simplest. Then write the rule in one sentence: "Photos and drone data are uploaded to the project folder by end of day Friday."

If your crews work with poor connectivity, allow batch uploads when they return to a good connection. Perfect is the enemy of consistent.

Handling large files

  • Compress or tier older data instead of deleting it. Keep full-resolution originals for active projects and move completed ones to lower-cost storage.
  • Use a clear naming and folder convention so files can be found later. Date, project number and location in the name saves hours.
  • Upload raw drone output as well as processed results when the contract or your own needs require reprocessing.

Step three: back up the home

A cloud folder is not a backup by itself. Deleted or overwritten files may be recoverable only for a limited period, and ransomware can sync encrypted files into the cloud. Make sure the storage location has versioning and a separate backup copy that a compromised user account cannot delete. Ask your provider how long deleted files are kept and how you would restore a whole project folder.

Apply the same principle as for other critical data: more than one copy, on more than one kind of storage, with one copy protected from being altered.

Step four: handle devices and personal accounts

Devices in the field are the weakest link.

  • Enable automatic photo and file upload to a company account where practical.
  • Prohibit storing the only copy of project data on a personal phone or personal cloud account.
  • Encrypt tablets and laptops, and be able to wipe them remotely if lost.
  • Recover data from departing employees' devices as part of offboarding.

Step five: set retention by contract

Retention needs differ. Some owners require records for a set period after substantial completion, and your own risk tolerance for claims plays a role. Review contracts and consult your attorney and insurer, then write a simple retention schedule by data type. Dispose of data on schedule, because keeping everything forever creates cost and exposure of its own.

Test a restore

Pick a completed project, delete nothing, and have someone restore a sample of photos and survey files to a separate location. Time it and note any gaps. A test that takes an hour now saves a bad surprise during a dispute.

Close the loop

Ironfield Cyber helps contractors build backup plans that include the messy field data, not just the servers. If you are not sure where your project photos and drone files actually live, we can map it with you and put a simple, affordable protection plan in place.

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