Reviewed: 2017-06-19
Product Version:
AhsayOBM/AhsayOBM: 7.5.0.0 to 7.x
OS: Windows
ATTENTION 1st January, 2022: v7 officially End-of-Life [details] ===== Problem Description ===== When perform a file backup up on AhsayOBM/AhsayACB v7 the job ends with "Snapshot for Shadow Copy Set is missing, backup terminate." error.
No. | Type | Timestamp | Log |
* | ... | ... | ... |
* | erro | YYYY/MM/DD hh:mm:ss | Snapshot for Shadow Copy Set is missing, backup terminate. |
* | info | ... | ... |
===== Cause ===== The error message is returned by the Microsoft Windows Volume Shadow Copy Service (VSS).
To support backups of volume mount points on Windows file backup sets on AhsayOBM/AhsayACB v7, if "Volume Shadow Copy" option is enabled , AhsayOBM/AhsayACB v7 will initiate a VSS snapshot of all local drives found on the machine regardless if the drive has been selected in the backup source.
This behavior different from AhsayOBM/AhsayACB v6 which only initiates a VSS snaphot of a local drive selected in the backup source.
===== Resolution ===== If the client machines are not configured with volume mount points and there are persistent "[Shadow Copy] Snapshot for Shadow Copy Set is missing, backup terminate." backup errors.
As a workaround you could consider reverting the current AhsayOBM/AhsayACB v7 VSS snapshot behavior back v6, this can be done by:
-
Editing the %OBC_INSTALLL_PATH%\
cb.opt
file
Example:
# Set option to true for disabling adding all volumes to shadow copy set
com.ahsay.obx.core.backup.file.ShadowCopy.disableAddAllVolumes=true
- Restart AhsayOBM/AhsayACB scheduler service.
===== Keyword ===== VSS, Volume Shadow Copy Service, volume mount point