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Backup job fails with a SQL VSS Writer error after installing ACT! Software

KB ID: 2798
Product: Veeam Backup & Replication
Veeam Agent for Microsoft Windows
Published: 2018-11-26
Last Modified: 2022-12-07
Languages: FR
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Article Applicability

This article is only applicable to a scenario involving all four of the following:

  1. A Backup Job using Application-Aware Processing
  2. A Guest OS with ACT! Software Installed
  3. This VSS error:
    Writer's state: [VSS_WS_FAILED_AT_PREPARE_SNAPSHOT]. Error code: [0x800423f4].
    
  4. This error within the Application Event Logs of the Guest OS:
    Event ID: 24582
    No mapping between account names and security IDs was done.
    

Challenge

A Veeam Agent for Microsoft Windows Backup Job or Veeam Backup & Replication Backup Job with Application-Aware Processing enabled fails while attempting to process a server with ACT! Software installed, the job displays the following error:

Failed to create snapshot. Error code -2147212300. 'Backup job failed.
Cannot create a shadow copy of the volumes containing writer's data.
A VSS critical writer has failed. Writer name: [SqlServerWriter]. Class ID: [{a65faa63-5ea8-4ebc-9dbd-a0c4db26912a}]. Instance ID: [{1d68f503-11fd-4591-9cf4-90e034386ae9}]. Writer's state: [VSS_WS_FAILED_AT_PREPARE_SNAPSHOT]. Error code: [0x800423f4].'
Cannot create a shadow copy of the volumes containing writer's data.
A VSS critical writer has failed. Writer name: [SqlServerWriter]. Class ID: [{a65faa63-5ea8-4ebc-9dbd-a0c4db26912a}]. Instance ID: [{1d68f503-11fd-4591-9cf4-90e034386ae9}]. Writer's state: [VSS_WS_FAILED_AT_PREPARE_SNAPSHOT]. Error code: [0x800423f4]. (System.Exception)

 

Correlated with the Backup Job failure, the following error is found within the Guest OS's Windows Application Event Log:

Log Name:      Application
Source:        SQLWRITER
Event ID:      24582
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      TEST
Description:
Sqllib error: Failed to create VDS object. hr = 0x80770005.
Log Name:      Application
Source:        SQLVDI
Event ID:      1
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      TEST
Description:
SQLVDI: Loc=IdentifySQLServer. Desc=Initialize. ErrorCode=(1332)No mapping between account names and security IDs was done.
. Process=5728. Thread=70504. Client. Instance=ACT7. VD=.

Solution

Perform the following steps to fix the issue:

  1. Open SQL Server Configuration Manager.
  2. Click the SQL Server Services node.
  3. Open the Properties of the instance mentioned in the Application Event error. (e.g., SQL Server(ACT7))
  4. Change the Log On from [ Built-in account: Local System ] to [ Built-in account: Local Service ]
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