Because the file size will likely increase over time, you should continue to monitor the size of these backup files and adjust storage size as needed. Check the file size, decide how many files you intend to keep in the shared directory, take into account that your organization will grow over time, and size the directory accordingly.

To estimate how large the file will be, use the webgisdr utility with the export operation to create a test export of your ArcGIS Enterprise organization. The shared directory you specify must be large enough to contain the exported file.Ensure you meet these criteria when using the utility:

You can find the utility in the Portal for ArcGIS tools directory. Use the webgisdr utility with the export operation and a properties file to create a backup of ArcGIS Enterprise. The size of the backup file and the time it takes to create it vary depending on how many items are in your portal, the number and type of hosted web layers you have, how many federated servers you have, and how many ArcGIS Server machines are in your hosting and federated servers. The file includes your portal items and settings hosted web layers federated and hosting server settings and, if using ArcGIS Data Store, your hosted feature layer data and hosted scene layer caches.

You can export the components of your ArcGIS Enterprise organization to a backup file that can later be used to restore your organization in the event of hardware failure or data loss.

Where does fbackup file