Stopping and restarting the Volume Shadow Copy service can resolve this problem. If a snapshot process is already running when the backup job starts, the backup job could fail. Microsoft's native snapshot manager is only able to perform one snap shot at a time. Known Cause 5 - Previous VSS snapshot is still running If these backups work, the problem is likely to be a scheduling conflict. To confirm that this is a scheduling issue try running a backup during the day, or try changing the scheduled time of your backup by a few hours. Make sure that there are no scheduled tasks, particularly backup tasks, that run at the same time as your scheduled backups. Hardware conflicts: Conflicts with backup devices can occur when another process is trying to use the backup destination at the same time as BackupAssist. Ensure that only one backup job is running at any one time. VSS conflicts: Having two backup jobs running at the same time within BackupAssist can cause errors if both backup jobs are trying to run VSS. Refer to the section applicable to your issue. This section explains VSS and device conflicts. To resolve this, remove the network drive from the backup and then re-run the backup job. This error can be generated if you attempt to perform a snapshot of a network drive that is seen' as local within Windows (e.g. The Windows VSS service can only create snapshots of drives connected locally to the machine that you are taking the snapshot of. Known Issue 3 - Backing up mapped network drives We generally recommend 30% for shadowstorage size to be able to avoid most errors related to Shadow Storage. This will resize the limit to XX percentage size for the X: drive. To change the limit: vssadmin Resize ShadowStorage /For=X: /On=X: /Maxsize=XX%.To check the current limit set: vssadmin list shadowstorage.The shadow storage size can be checked and manually changed through command prompt. The steps and commands to alter the shadowstorage on any given volume are uniform across operating systems. ![]() The steps to configure shadow copies varies between operating systems, so it's advised to check Microsoft's knowledge base for the steps specific for your OS. VSS requires space allocated to each volume to be able to create and store snapshots. Known Cause 2 - Shadow storage on the source drives is not configured or not large enough. You should also run a registry cleaner after the other backup solutions have been uninstalled. It is best practice to only have one backup solution installed at any one time. ![]() If you have (or had) more than one backup program installed on your system, disable / uninstall all of the programs except for BackupAssist, and run the backup job again. Many backup solutions have their own proprietary snapshot manager which can cause conflicts with other backup solutions installed on the system. Known Cause 1 - Multiple backup solutions installed The error's known causes and resolutions are described below. This error is generated when the Volume Shadow Copy Service (VSS) is unable to run due to an unexpected error. Iperius Backup is both stable and reliable software, which can beinstalled by home/business users and as a Windows service monitored through a Web Console.Volume Shadow Copy Error 0x8004230f - unexpected provider error The small footprint and the low cost:Iperius is a lightweight and portable software and licenses are lifetime and include free support and updates.Automatic Backup Utility:Iperius can perform automatic backups and then send e-mail notifications to inform users about the backup result. ![]()
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