Windows Application

If you are backing up a Windows VM with Microsoft applications such as Exchange, SQL, SharePoint, or AD, under the Windows Application tab, you can see the options to customize the Application-aware Processing & Log Truncation.

Application-aware processing

Application-aware processing ensures consistency of the Microsoft applications such as Microsoft Exchange Server, SQL Server, Active Directory, SharePoint, and Oracle database inside the VM. When application-aware processing is enabled, the backup software communicates with the application inside the VM to quiesce or freeze its operations momentarily. This ensures that any pending transactions or data in memory are properly flushed to disk before the backup snapshot is taken.

• On selecting Require successful application processing (recommended), the backup will continue only if all the application writers are stable and the application-aware processing is successful. 

• On selecting Ignore application processing failures, the backup will proceed regardless of whether application-aware is successful or not. This is not recommended, as your backup may not be transaction-consistent. 

• On selecting Disable application-aware processing, the backup will proceed without ensuring the transaction consistency for the applications inside the VMs.

Log Truncation

Truncating the transaction logs helps maintain the optimal performance of the application or database by preventing the log files from becoming excessively large. It also ensures that the logs do not consume unnecessary disk space.

• On selecting Truncate the transaction logs, the transaction logs of Microsoft Exchange Server & Microsoft SQL Server will be truncated after the successful backups.  

• On selecting Do not truncate logs, the transaction logs of Microsoft Exchange Server & Microsoft SQL Server will not be truncated.