Problem adding rasters to mosaic dataset

Question

I have just created a mosaic dataset in a SQL Server Database.  When I attempt to add rasters to the Mosaic Dataset it fails.  The rasters are 4 band aerial imagery.  These are the messages for the process:

2025-09-12T11:12:57.960: Loading raster datasets
2025-09-12T11:12:58.682: Completed crawling 680 data source items. Added 680 mosaic dataset items.
2025-09-12T11:12:58.704: Synchronizing crawled data source items
2025-09-12T11:12:58.755: Synchronizing items associated with raster type instance 'Raster Dataset' [ID: 4].
2025-09-12T11:12:58.769: Distributing mosaic dataset operation across 24 parallel instances on the specified host: [C39ITSUPPORT-25].
2025-09-12T11:13:39.955: Error: 80048178: Cannot synchronize mosaic dataset items associated with the specified raster type instance. [Name: Raster Dataset; Instance ID: 4]
2025-09-12T11:13:39.957: Error: 80040213: Class not registered

2025-09-12T11:13:39.980: Removing invalid mosaic dataset items
2025-09-12T11:13:40.048: Removing unreferenced raster type and overview instances
2025-09-12T11:13:40.083: Removed 187 mosaic dataset items and 0 unreferenced raster type instances.
2025-09-12T11:13:40.227: Completed synchronization: 437 items selected, 0 items synchronized.

For reference, I have two federated servers.  One is the hosting server and has portal on it, and the second is the Raster Analysis Server.  See below:

Thanks in advance for any assistance you can provide.

Syvertson · Answer

1.  The ratsers are stored in a network drive that is referenced folder in the ArcGIS Datastore.

2.  Not feeding an image service yet.  I am just created it and started to load ratsers into it.

3.  I only used the SQL Server because almost everything I do is in SQL Server.  Only use FGDB for personal projects that will not be shared enterprise wide.

Todd_Metzler · Answer

1. Are your raster files stored on a file share?  Is the file share registered as a datastore on your Image/RA server?

2. Is the MDS feeding an image service?  If yes, stop the services and run your process again.

3.  Not knowing your infrastructure capabilities, limitations and constraints, Why host the MDS in RDBMS?  A FGDB does well in these workflows.