Veeam Backup Error: ‘Failed to prepare guest for hot backup’

KB ID 0000799 Dtd 02/04/13

Problem

While backing up a couple of servers (SBS box and a TS/RDP Server) I got this error;

VSSControl Failed to prepare guest for freeze

Failed to prepare guest for hot backup. Error VSSControl Failed to prepare guest for freeze, wait timeout 900 sec

Solution

This is common if the target server is a 'busy' server (like SBS or SQL). You may need to make a registry change on the Veeam Server.

1. Start > Run >regedit {enter}.

2. Navigate to;

HKEY_LOCAL_MACHINE > SOFTWARE > VeeaM > Veeam Backup and Replication

3. Create a new 32 bit DWORD value called VssPreparationTimeout and set its value to 180000 decimal (30 minutes).

VSSControl Failed to prepare guest for freeze

3. Then restart the Veeam services, and try again.

Veeam Services

Related Articles, References, Credits, or External Links

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Author: Migrated

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