Friday, 10 February 2017

Fix SQL Server Commvault Backup Failures After an Upgrade

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One of my friend sent an email that backups of a SQL Server 2016 instance are failing suddenly when the backups run through the Commvault backup tool. The error is:
Error Code: [30:325]
Description: Error encountered during backup. Error: [System.IO.FileNotFoundException:Could not load file or assembly 'Microsoft.SqlServer.BatchParserClient, Version=13.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91' or one of its dependencies. The system cannot find the file specified. Could not load file or assembly 'Microsoft.SqlServer.BatchParserClient, Version=13.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91' or one of its dependencies. The system cannot find the file specified.]
In below screenshot, backups status fails with error code [30:325] in Commvault console.

Cause

When logged into SQL Server machine and investigated the logs to identify if any recent changes on SQL instance. In C:\Program Files\Microsoft SQL Server\130\Setup Bootstrap\Log\summary.txt shows that SQL Server 2008 R2 was upgraded the previous night to SQL Server 2016. Then the backup starts failing. You can also find installed date in add/remove program features in control panel.

Resolution



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