Publishing Microsoft SQL Databases: Insufficient Free Space on the Mount Server

KB ID: 3049
Product: Veeam Backup & Replication
Version: 9.5 Update 4
Published: 2019-11-13
Last Modified: 2020-08-13
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Challenge

When publishing a Microsoft SQL database via Veeam Explorer for Microsoft SQL Server, the C drive (C:\) on the mount server is running out of space.

Cause

Veeam Explorer for Microsoft SQL Server saves cache to the C:\Windows\SysWOW64\config\systemprofile\AppData\Local directory folder located on the mount server. Such cache is used to keep changes that you might have made to the published database.

User-added image

Solution

Change the following registry key on the mount server:

Key path: HKEY_LOCAL_MACHINE\SOFTWARE\Veeam\Veeam Backup and Replication
Key: WriteCacheDirectory
Key type: REG_SZ

Consider the following:
  • Make sure the Key path exists.
  • The WriteCacheDirectory key must be specified without backslash ("\").
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