Key Risks of Backing Up Active DWG Files
Posted: Fri Nov 13, 2026 6:56 am
File Locking and Skipped Files: CAD applications (such as AutoCAD or IntelliCAD) typically place write or read locks on .dwg files while they are open. Traditional file backup scripts or basic backup utilities will either throw sharing violations, fail to read the locked file entirely, or silently skip the file, leaving gaps in your backup set.
Inconsistent State (Half-Written Files): If a backup tool manages to read a file while a user is actively saving modifications, the backup utility may capture a fragmented, intermediate state. This can result in a corrupted DWG header, incomplete object tables, or unrecoverable drawing corruption that only surfaces when attempting a restore.
Broken XREF and Dependency Trees: DWG projects frequently rely on External References (XREFs), image attachments, sheet sets, and custom font/shape files. If a backup runs while individual files are being updated asynchronously, the point-in-time consistency across interdependent drawings is lost, making assemblies fail upon restoration.
Inconsistent State (Half-Written Files): If a backup tool manages to read a file while a user is actively saving modifications, the backup utility may capture a fragmented, intermediate state. This can result in a corrupted DWG header, incomplete object tables, or unrecoverable drawing corruption that only surfaces when attempting a restore.
Broken XREF and Dependency Trees: DWG projects frequently rely on External References (XREFs), image attachments, sheet sets, and custom font/shape files. If a backup runs while individual files are being updated asynchronously, the point-in-time consistency across interdependent drawings is lost, making assemblies fail upon restoration.