This article contains links to articles about common errors and warnings that may be useful when troubleshooting machine and server (ESE) backups.
004 - VSS troubleshooting and common errors
382 - ESE error: "GC overhead limit exceeded" or "Java heap space"
384 - ESE: files with extended attributes skipped
575 - Windows Image Backup error: "The backup storage location is invalid"
759 - ESE error: "required backup component was not found" (SQL database offline)
859 - ESE: SQL Server default database name conflicts with named instance
882 - Backup errors on SQL Server .ldf files
1019 - ESE: Cannot view file contents after restoring
1115 - Backup fails with "0x800423f0; writer inconsistent snapshot"
1203 - ESE: Error "Could not determine StorageServer from AccountServer"
1220 - ESE: Files are skipped during backup with error "Cloud files are not supported"
1223 - ESE warning: Target referenced by symlink is not selected for backup
1225 - System state backup presents warning "Unsupported feature detected"
1232 - Error: "Missing entry at ..." appears in logs
1257 - Local copy backup fails with error "Backup failed: newPosition > limit"
1268 - Backup fails because a5backup.properties file is not copied
1280 - Error when backing up many SQL databases on a single machine
1298 - Warning: "Non Daemon Thread"
1410 - Backup fails with error "InstantData stub file - modified"
1418 - Warning: "Could not update session settings"
1425 - Error: "StorageServer and AccountServer are out of sync; no backups are allowed"
1434 - Error: "The filename, directory name, or volume label syntax is incorrect"
1435 - ESE error on macOS: "Operation not permitted"
1445 - ESE: "Warning: Backups to this Account detected from another Backup Client"
1450 - Error: Unknown VSS or COM error
1451 - Warning: Unable to open file ... (The system cannot find the file specified)
1452 - Warning: Failed to read security descriptor for file ... (Access is denied)
1455 - Error: Could not add volume ... to VSS snapshot
1458 - Error: The specified volume is nested too deeply (0x8004232c)
1459 - Error: There is not enough space on the disk
1460 - Error: VSS snapshot creation failed (0x80042306; provider veto)
1463 - Error: "Backup failed: Backup account disabled"
1466 - Error: Could not prepare for snapshot creation ... failed at prepare snapshot
1472 - Could not prepare for snapshot creation ... failed at freeze
1476 - ESE warning: "SQL Server file can be backed up more consistently from the SQL view"
1479 - ESE error: Backup limit exceeded / account over limit
1507 - Backup failed: Timed out waiting for VSS operation to complete
1533 - Error: VSS snapshot creation failed (0x80042308; object not found)
1534 - Error: VSS snapshot creation failed (0x8004231f; insufficient storage)
1546 - Backup fails with invalid certificate error
1561 - ESE error on macOS: "Resource deadlock avoided"
1562 - Backup fails with warning "Could not retrieve account settings"
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