I just performed an incremental backup. Reflect reported completing the backup and verification successfully, and I did a spot check of a few files in the backup with no issues. However, the log page has the following message: ===================================== Failed To Create Volume Snapshot. Result Code: 0x80042306 ERROR: COM call "m_pVssObject->BackupComplete(&pAsync)" failed. - Returned HRESULT = 0x80042301 - Error text: VSS_E_BAD_STATE =====================================
What does this mean and what should I do about it?
The VSS issue is not related to the validity of the backup files. The validity checks for corruption in the data written/read back. The VSS is a process that runs before the backup begins.
The purpose of VSS is to allow you to use the system while it is being backed up without causing issues with file content. For example, if you edited a Word document during the backup process, you cannot be sure if the backup included the old version, the new version or - worse case - parts of both versions. VSS prevents these issues. So if you were not using the computer during the backup, it is likely that the backed up data has internal integrity.
The VSS error you got may be fixed simply by rebooting or it may require some more specific actions. Check the Reflect knowledge base for articles related to correcting VSS errors like the one you saw. Note that VSS is a Microsoft product.