volsnap.sys

Associated Error Codes

Below lists error codes and symbolic names found for this module.

CodeFound inDescription
0x100000381011Classic
0x310000001011Info
0x310000011011Start
0x310000021011Stop
0x400600211011The oldest shadow copy of volume %2 was deleted to keep disk space usage for shadow copies of volume %2 below the user defined limit.
0x4006003a1011The oldest shadow copy of volume %2 was deleted to keep the total number of shadow copies of volume %2 below a limit.
0x400600401011Volume %2 is being reverted to the state of a previous shadow copy.
0x400600411011The reverting of volume %2 is being restarted. This is most likely because of a system shutdown or a system crash.
0x400600421011The reverting of volume %2 to the state of a previous shadow copy is complete.
0x4006005f1011The oldest shadow copy of volume %2 was deleted to allow shadow copies created afterward and marked for delete to be deleted.
0x500000021011Error
0x500000031011Warning
0x500000041011Information
0x800600181011There was insufficient disk space on volume %3 to grow the shadow copy storage for shadow copies of %2. As a result of this failure all shadow copies of volume %2 are at risk of being deleted.
0x8006001e1011An unfinished create of a shadow copy of volume %2 was deleted.
0x800600261011There was a user imposed limit that prevented disk space on volume %3 from being used to grow the shadow copy storage for shadow copies of %2. As a result of this failure all shadow copies of volume %2 are at risk of being deleted.
0x8006003d1011The revert operation on volume %2 encountered a bad sector error. Please validate the data on this volume.
0x8006003e1011The revert operation on volume %2 stopped because of the loss of a volume. When the volume is re-introduced, the revert will continue. You may have to reboot to trigger the revert.
0x900000011011System
0x910000011011Microsoft-Windows-VolumeSnapshot-Driver
0xb10000641011The volume snapshot driver has begun processing for volume online. Volume GUID: %1 Guidance: When a volume is brought online the volume snapshot driver scans for any persistent snapshots that may be on the volume. You should expect this event when a volume is brought online. No user action is required.
0xb10000651011The volume snapshot driver has completed processing for volume online. Volume GUID: %1 Guidance: The volume snapshot driver was able to scan for any persistent snapshots on this volume. You should expect this event when a volume is brought online. No user action is required.
0xb10000661011The volume snapshot driver encountered an error while performing processing for volume online. Error: %2 Volume GUID: %1 Guidance: When a volume is brought online the volume snapshot driver scans for any persistent snapshots that may be on the volume. In case of an error this scan is not performed. The error may have originated in storage drivers beneath the volume snapshot driver; check their logs. If the error is STATUS_DEVICE_NOT_CONNECTED this means the volume is in snapshot protection mode and has been taken offline to prevent loss of snapshots.
0xb10000671011Activation of discovered snapshots began. Volume GUID: %1 Guidance: When a volume is brought online or reverted to a snapshot, the volume snapshot driver scans for and activates any persistent snapshots that may be on the volume. You should expect this event when a volume is brought online or reverted to a snapshot. No user action is required.
0xb10000681011Activation of discovered snapshots completed. Volume GUID: %1 Total Number of Snapshots Found: %2 Number of Snapshots Marked for Delete: %3 Number of Visible Snapshots Found: %4 Guidance: When a volume is brought online or reverted to a snapshot, the volume snapshot driver scans for and activates any persistent snapshots that may be on the volume. Some snapshots may be marked 'visible', meaning they were exposed as a local volume or file share. Some detected snapshots may be marked 'deleted', meaning they are no longer available for use and their diff area space will be reclaimed when all older snapshots are deleted. Look for instances of event 106 to see each snapshot that was discovered and whether it was 'visible' or 'deleted'. You should expect this event when a volume is brought online or reverted to a snapshot. No user action is required.
0xb10000691011Activation of discovered snapshots encountered an error. Error: %2 Volume GUID: %1 Guidance: When a volume is brought online or reverted to a snapshot, the volume snapshot driver scans for and activates any persistent snapshots that may be on the volume. Unless the volume is in snapshot protection mode or the error code indicates the volume is offline, a failure during this process results in loss of all snapshots on the volume.
0xb100006a1011A persistent snapshot was activated. Volume GUID: %1 Snapshot GUID: %2 Snapshot Marked Deleted: %3 Snapshot Visible: %4 Snapshot Commit Timestamp: %5 Guidance: When a volume is brought online or reverted to a snapshot, the volume snapshot driver scans for and activates any persistent snapshots that may be on the volume. If the snapshot is 'visible', it was exposed as a local volume or file share. If the snapshot is 'deleted', it is no longer available for use and its diff area space will be reclaimed when all older snapshots are deleted. You should expect this event when a volume containing persistent snapshots is brought online or reverted to a snapshot. If all discovered snapshots are successfully activated you should expect event 104, otherwise you will see event 105. No user action is required.
0xb100006b1011Reading of a snapshot diff area's metadata began. Volume GUID: %1 Snapshot GUID: %2 Guidance: When a volume is brought online or reverted to a snapshot, the volume snapshot driver reads the diff area for the most-recent persistent snapshot (if any). The diff area for earlier persistent snapshots is typically read the first time the snapshot is read from. You should expect this event when a volume is brought online, reverted to a snapshot, or when reading from a persistent snapshot for the first time after bringing a volume online. This event may also occur if a volume is dismounted that contains snapshots that have not been read since the volume was brought online. No user action is required.
0xb100006e1011Validation of diff area files began. Volume GUID: %1 Guidance: When a volume is mounted, the volume snapshot driver reads and validates all the diff area files located on the volume. These diff area files may be for persistent snapshots of the volume being mounted, or for persistent snapshots of other volumes. You should expect this event when mounting a volume. No user action is required.
0xb100006f1011Validation of diff area files completed. Number of Diff Areas: %2 Guidance: When a volume is mounted, the volume snapshot driver reads and validates all the diff area files located on the volume. These diff area files may be for persistent snapshots of the volume being mounted, or for persistent snapshots of other volumes. You should expect this event when mounting a volume. No user action is required.
0xb10000701011Validation of diff area files encountered an error. Error: %2 Volume GUID: %1 Guidance: When a volume is mounted, the volume snapshot driver reads and validates all the diff area files located on the volume. These diff area files may be for persistent snapshots of the volume being mounted, or for persistent snapshots of other volumes. A failure during this process results in loss of all snapshots whose diff area files are located on the volume, unless those snapshots are of volumes that are in snapshot protection mode.
0xb10000711011The volume is preparing to be taken offline. Volume GUID: %1 Guidance: Some system services, such as the cluster service, inform the volume snapshot driver when they are about to take the volume offline. You should expect this event when an entity such as the cluster service prepares to take a volume offline. No user action is required.
0xb10000721011The volume snapshot driver has begun processing for dismount. Volume GUID: %1 Guidance: When a volume is dismounted, the volume snapshot driver closes any handles it may have open on the dismounting volume, such as handles to diff areas. All auto-release snapshots that have diff areas on the dismounting volume are deleted at this time. The volume snapshot driver may also perform some work to detect whether any future direct writes to the volume are to diff area space for persistent snapshots. If such writes occur this detection work allows the volume snapshot driver to destroy the snapshots, since the direct volume writes may corrupt them. You should expect this event when a volume dismounts. No user action is required.
0xb10000731011The volume snapshot driver has completed processing for dismount. Volume GUID: %1 Guidance: When a volume is dismounted, the volume snapshot driver closes any handles it may have open on the dismounting volume, such as handles to diff areas. All auto-release snapshots that have diff areas on the dismounting volume are deleted at this time. The volume snapshot driver may also perform some work to detect whether any future direct writes to the volume are to diff area space for persistent snapshots. If such writes occur this detection work allows the volume snapshot driver to destroy the snapshots, since the direct volume writes may corrupt them. You should expect this event when a volume dismounts. No user action is required.
0xb10000741011The volume snapshot driver has begun processing for volume offline. Volume GUID: %1 Guidance: When a volume is taken offline, the volume snapshot driver disables any persistent snapshots that still exist for the volume (autorelease snapshots were deleted when the volume was dismounted). Snapshots of other volumes whose diff areas are on the offlining volume are destroyed, unless those volumes are in snapshot protection mode. In that case those volumes are taken offline. You should expect this event when a volume is taken offline. No user action is required.
0xb10000751011The volume snapshot driver has completed processing for volume offline. Volume GUID: %1 Guidance: When a volume is taken offline, the volume snapshot driver disables any persistent snapshots that still exist for the volume (autorelease snapshots were deleted when the volume was dismounted). Snapshots of other volumes whose diff areas are on the offlining volume are destroyed, unless those volumes are in snapshot protection mode. In that case those volumes are taken offline. You should expect this event when a volume is taken offline. No user action is required.
0xb10000761011The volume snapshot driver encountered an error while performing processing for volume offline. Error: %2 Volume GUID: %1 Guidance: When a volume is taken offline, the volume snapshot driver disables any persistent snapshots that still exist for the volume (autorelease snapshots were deleted when the volume was dismounted). Snapshots of other volumes whose diff areas are on the offlining volume are destroyed, unless those volumes are in snapshot protection mode. In that case those volumes are taken offline. If the error is STATUS_INSUFFICIENT_RESOURCES (0xc000009a), the volume snapshot driver may have been unable to allocate memory. Other error codes originate from lower drivers. Please check their log(s) for further information.
0xb10000771011The volume snapshot driver encountered an error while performing processing for dismount. Error: %3 Error Details: %2 Volume GUID: %1 Guidance: When a volume is dismounted, the volume snapshot driver closes any handles it may have open on the dismounting volume, such as handles to diff areas. All auto-release snapshots that have diff areas on the dismounting volume are deleted at this time. The volume snapshot driver may also perform some work to detect whether any future direct writes to the volume are to diff area space for persistent snapshots. If such writes occur this detection work allows the volume snapshot driver to destroy the snapshots, since the direct volume writes may corrupt them. A failure during this process results in loss of all snapshots whose diff area files are located on the volume, unless those snapshots are of volumes that are in snapshot protection mode.
0xb10000781011Activation of discovered snapshots took too long and was aborted. Volume GUID: %1 Timeout Value (in seconds): %2 Guidance: When a volume is brought online or reverted to a snapshot, the volume snapshot driver scans for and activates any persistent snapshots that may be on the volume. This process took longer than the amount of time allowed on this system, so activation has been aborted. Unless the volume is in snapshot protection mode, all snapshots on this volume have been deleted.
0xb10000791011The volume snapshot driver was unable to log an event to the legacy System event log. Volume Name: %2 Diff Volume Name (if applicable): %4 Original Error Event Code: %5 Original Error Status: %6 Cause of Logging Failure:%10
0xb100007a1011The volume snapshot driver encountered an error when attempting to determine whether the volume is clustered. Error: %2 Volume GUID: %1 Guidance: When a volume is brought online or reverted to a snapshot, the volume snapshot driver scans for and activates any persistent snapshots that may be on the volume. This process attempts to determine whether the volume is part of a cluster shared resource, but the query to determine this failed. This error does not indicate that any snapshots have been deleted. You should expect this event if the volume is on a dynamic disk or is managed by a third-party volume manager.
0xb10003e81011PrepareForSnapshot (Enter)
0xb10003e91011PrepareForSnapshot (Leave)
0xb10003ea1011PreExposure (Enter)
0xb10003eb1011PreExposure (Leave)
0xb10003ec1011AdjustBitmap (Enter)
0xb10003ed1011AdjustBitmap (Leave)
0xb10003ee1011EndCommit (Enter)
0xb10003ef1011EndCommit (Leave)
0xb10003f01011Activate (Enter)
0xb10003f11011Activate (Leave)
0xb10003f21011SetIgnorable (Enter)
0xb10003f31011SetIgnorable (Leave)
0xb10003f41011ComputeIgnorableProduct (Enter)
0xb10003f51011ComputeIgnorableProduct (Leave)
0xb10003f61011Dismount (Enter)
0xb10003f71011Dismount (Leave)
0xb10003f81011Remount (Enter)
0xb10003f91011Remount (Leave)
0xb10003fa1011DeleteProcess (Enter)
0xb10003fb1011DeleteProcess (Leave)
0xb10003fc1011Revert (Enter)
0xb10003fd1011Revert (Leave)
0xb10003fe1011ComputeProtectedBitmap (Enter)
0xb10003ff1011ComputeProtectedBitmap (Leave)
0xb10004001011FlushHoldFs (Enter)
0xb10004011011FlushHoldFs (Leave)
0xb10004021011ActivateLoop (Enter)
0xb10004031011ActivateLoop (Leave)
0xb10004041011ValidateDiffAreaFiles (Enter)
0xb10004051011ValidateDiffAreaFiles (Leave)
0xb10004061011VolumesSafeForWrite (Enter)
0xb10004071011VolumesSafeForWrite (Leave)
0xb10004081011DiscoverSnapshots (Enter)
0xb10004091011DiscoverSnapshots (Leave)
0xb102006c1011Reading of a snapshot diff area's metadata completed. Volume GUID: %1 Snapshot GUID: %2 Count of 1MB Reads: %3 Count of 16KB Reads: %4 Diff Area Metadata Size: %5 Bytes Total Data Read: %6 Bytes Guidance: When a volume is brought online or reverted to a snapshot, the volume snapshot driver reads the diff area for the most-recent persistent snapshot (if any). The diff area for earlier persistent snapshots is typically read the first time the snapshot is read from. The size of the diff area metadata may be less than the total number of bytes read if the diff area is discontiguous on disk. You should expect this event when a volume is brought online, reverted to a snapshot, or when reading from a persistent snapshot for the first time after bringing a volume online. This event may also occur if a volume is dismounted that contains snapshots that have not been read since the volume was brought online. No user action is required.
0xb102006d1011Reading of a snapshot diff area's metadata encountered an error. Error: %3 Volume GUID: %1 Snapshot GUID: %2 Count of 1MB Reads: %4 Count of 16KB Reads: %5 Amount of Diff Area Metadata Read: %6 Bytes Total Data Read: %7 Bytes Guidance: When a volume is brought online or reverted to a snapshot, the volume snapshot driver reads the diff area for the most-recent persistent snapshot (if any). The diff area for earlier persistent snapshots is typically read the first time the snapshot is read from. Unless the volume is in snapshot protection mode, a failure during this process results in loss of all snapshots on the volume.
0xc00600011011The shadow copy of volume %2 could not create shadow copy storage on volume %3.
0xc00600021011The shadow copy of volume %2 could not be created because volume %3, which is specified as the location for shadow copy storage, is not an NTFS volume or an error was encountered while trying to determine the file system type of this volume.
0xc00600031011The shadow copy of volume %2 could not lock down the location of the shadow copy storage on volume %3.
0xc00600041011The shadow copy of volume %2 could not be created due to insufficient resources for worker threads.
0xc00600051011The shadow copy of volume %2 could not be created due to insufficient non-paged memory pool for a bitmap structure.
0xc00600061011The shadow copy of volume %2 could not create a new paged heap. The system may be low on virtual memory.
0xc00600071011The shadow copy of volume %2 failed to query the shadow copy storage mappings on volume %3.
0xc00600081011The flush and hold writes operation on volume %2 timed out while waiting for a release writes command.
0xc00600091011The flush and hold writes operation on volume %2 timed out while waiting for file system cleanup.
0xc006000a1011The shadow copy of volume %2 took too long to install.
0xc006000d1011The shadow copy of volume %2 could not grow its shadow copy storage on volume %3.
0xc006000e1011The shadow copies of volume %2 were aborted because of an IO failure on volume %3.
0xc006000f1011The shadow copies of volume %2 were aborted because of insufficient paged heap.
0xc00600101011The shadow copies of volume %2 were aborted because volume %3, which contains shadow copy storage for this shadow copy, was force dismounted.
0xc00600111011An attempt to flush and hold writes on volume %2 was attempted while another flush and hold was already in progress.
0xc00600141011The shadow copies of volume %2 were aborted because of a failed free space computation.
0xc00600151011The flush and hold operation for volume %2 was aborted because of low available system memory.
0xc00600161011The shadow copy storage volume specified for shadow copies on volume %2 could not be added.
0xc00600171011There was insufficient disk space on volume %3 to create the shadow copy of volume %2. Shadow copy storage creation failed.
0xc00600191011The shadow copies of volume %2 were deleted because the shadow copy storage could not grow in time. Consider reducing the IO load on the system or choose a shadow copy storage volume that is not being shadow copied.
0xc006001b1011The shadow copies of volume %2 were aborted during detection because a critical control file could not be opened.
0xc006001c1011The shadow copy of volume %2 could not be created due to a failure in creating the necessary on disk structures.
0xc006001d1011The shadow copies of volume %2 were aborted during detection.
0xc006001f1011A control item for shadow copies of volume %2 was lost during detection.
0xc00600201011The shadow copies of volume %2 were aborted because the shadow copy storage volume was not present.
0xc00600231011The shadow copies of volume %2 were aborted because the shadow copy storage failed to grow.
0xc00600241011The shadow copies of volume %2 were aborted because the shadow copy storage could not grow due to a user imposed limit.
0xc00600271011When preparing a new volume shadow copy for volume %2, the shadow copy storage on volume %3 could not be located in non-critical space. Consider using a shadow copy storage volume that does not have any shadow copies.
0xc00600281011The shadow copies of volume %2 were aborted because volume %3 has been dismounted.
0xc00600291011When preparing a new volume shadow copy for volume %2, the shadow copy storage on volume %3 did not have sufficiently large contiguous blocks. Consider deleting unnecessary files on the shadow copy storage volume or use a different shadow copy storage volume.
0xc00600301011When preparing a new volume shadow copy for volume %2, the shadow copy storage on volume %3 did not have sufficiently large contiguous blocks. A shadow copy create computation is in progress to find more contiguous blocks.
0xc006003b1011The shadow copies of volume %2 were aborted because the shadow copy storage volume was not present in time during a previous session.
0xc006003c1011The shadow copies of volume %2 were aborted because volume %3, which contains shadow copy storage for this shadow copy, has been taken offline.
0xc006003f1011An error occurred while trying to delete a snapshot of %2. The delete will be retried at a later time.
0xc00600431011The shadow copy of volume %2 being created failed to install.
0xc00600501011Volume %2 is offline for shadow copy protection. The shadow copy storage is not present. This volume will go online and its shadow copies will become available once the shadow copy storage is introduced in the system. Revert out of shadow copy protection mode to reclaim the use of the volume while losing the shadow copies.
0xc00600511011Volume %2 is offline for shadow copy protection. An IO error occurred during shadow copy discovery. Please try clearing the protection fault or restart the computer. If all else fails, revert out of shadow copy protection mode to reclaim the use of the volume while losing the shadow copies.
0xc00600521011Volume %2 is offline for shadow copy protection. A shadow copy meta data corruption was detected. Please try clearing the protection fault or restart the computer. If all else fails, revert out of shadow copy protection mode to reclaim the use of the volume while losing the shadow copies.
0xc00600531011Volume %2 is offline for shadow copy protection. A memory allocation failed. Please try clearing the protection fault or restart the computer. If all else fails, revert out of shadow copy protection mode to reclaim the use of the volume while losing the shadow copies.
0xc00600541011Volume %2 is offline for shadow copy protection. A memory mapping failed. Consider increasing the size of the page file. Please try clearing the protection fault or restart the computer. If all else fails, revert out of shadow copy protection mode to reclaim the use of the volume while losing the shadow copies.
0xc00600551011Volume %2 is offline for shadow copy protection. A read failure occurred during a shadow copy on write operation. Please try clearing the protection fault or restart the computer. If all else fails, revert out of shadow copy protection mode to reclaim the use of the volume while losing the shadow copies.
0xc00600561011Volume %2 is offline for shadow copy protection. A read or write failure to shadow copy storage occurred. Please ensure that the shadow copy storage is still present in the system. Please try clearing the protection fault or restart the computer. If all else fails, revert out of shadow copy protection mode to reclaim the use of the volume while losing the shadow copies.
0xc00600571011Volume %2 is offline for shadow copy protection. The shadow copy storage has been exhausted. Please try clearing the protection fault or restart the computer followed by an increase of the shadow copy storage or a removal of unneeded shadow copies. If all else fails, revert out of shadow copy protection mode to reclaim the use of the volume while losing the shadow copies.
0xc00600581011Volume %2 is offline for shadow copy protection. The shadow copy storage was exhausted before conditions permitted it to grow. Please try clearing the protection fault or restart the computer. If all else fails, revert out of shadow copy protection mode to reclaim the use of the volume while losing the shadow copies.
0xc00600591011Volume %2 is offline for shadow copy protection. The shadow copy storage could not be increased as needed. Please try clearing the protection fault or restart the computer. If all else fails, revert out of shadow copy protection mode to reclaim the use of the volume while losing the shadow copies.
0xc006005a1011Volume %2 is offline for shadow copy protection. Please try clearing the protection fault or restart the computer. If all else fails, revert out of shadow copy protection mode to reclaim the use of the volume while losing the shadow copies.
0xc006005b1011Volume %2 is offline for shadow copy protection. An error occurred when doing a file system operation. Please try clearing the protection fault or restart the computer. If all else fails, revert out of shadow copy protection mode to reclaim the use of the volume while losing the shadow copies.
0xc006005c1011Volume %2 is offline for shadow copy protection. A read or write error occurred. Please try clearing the protection fault or restart the computer. If all else fails, revert out of shadow copy protection mode to reclaim the use of the volume while losing the shadow copies.
0xc006005d1011Volume %2 is offline for shadow copy protection. The shadow copy storage was made inaccessible or removed from the system. Please ensure that the shadow copy storage is present. Please try clearing the protection fault or restart the computer. If all else fails, revert out of shadow copy protection mode to reclaim the use of the volume while losing the shadow copies.
0xc006005e1011Volume %2 is offline for shadow copy protection. An application attempted to write to the shadow copy meta data. If this program was run intentionally then turn off protection mode for this volume in order to allow the application (which may be FORMAT) to run. Please try clearing the protection fault or restart the computer. If all else fails, revert out of shadow copy protection mode to reclaim the use of the volume while losing the shadow copies.
0xd10000011011Not applicable.
0xd10000021011An volume offline for cluster failover was expected, but a mount request arrived instead. A failure occurred attempting to take the volume offline to compensate.
0xd10000031011Error validating diff area files.
0xd10000041011There were no persistent snapshots on the volume.
0xd10000051011Error calculating the protected blocks bitmap.
0xd10000061011Could not allocate the protected blocks bitmap.
0xb100007b11Persistent snapshots are not supported on this edition of Windows. Guidance: This edition of Windows does not support creation of persistent snapshots. Autorelease snapshots are supported.
0xb100007c11The volume snapshot driver failed to remove a shadow copy diff area from the volume's reserved storage. Volume GUID: %1 Snapshot GUID: %2 Error Status: %3 Guidance: Snapshot diff area files use the volume's reserved storage. While attempting to remove one or more diff areas from reserved storage (which can happen during an OS update, for example), a failure occurred. The error code indicates the reason. For example, STATUS_DISK_FULL (0xc000007f) indicates that the volume was low on space, and shadow copies will be deleted to ensure sufficient space. Other errors do not cause shadow copies to be deleted.
0xb100007d11One or more shadow copies were deleted because there was not enough disk space to retain them after their diff areas were removed from the volume's reserved storage. Volume GUID: %1 Number of Shadow Copies Deleted: %2 Guidance: The volume indicated was the host volume for the deleted shadow copies' diff areas. If this volume is a shadow copy storage association for other volumes, the deleted shadow copies may have been for those volumes.
0xb100007e11The diff area for a shadow copy has been added to reserved storage. Volume GUID: %1 Shadow Copy GUID: %2 Reason For Adding: %3
0xb100007f11The diff area for a new shadow copy was not added the volume's reserved storage because reserved storage is not available at this time. Volume GUID: %1 Shadow Copy GUID: %2
0xb100008011The diff area for a shadow copy could not be added to reserved storage because of an error. Volume GUID: %1 Shadow Copy GUID: %2 Reason For Adding: %3 Error Status: %4
0xb100008111The diff area for a shadow copy has been removed from reserved storage. Volume GUID: %1 Shadow Copy GUID: %2
0xc006006011The shadow copies of volume %2 were aborted because of an error when disabling BypassIO.
0xd100000711No reason provided.
0xd100000811Caller requested adding existing shadow copy diff areas to storage reserve.
0xd100000911A new shadow copy was created.
144 entries