Basically, yes. However, you need to know that databases may be inconsistent with a Hot Backup. Say a backup of the virtual machine in operation. You must therefore dump your databases with our software. This happens on Windows and Linux with Batch script via a shell. After that you can take a Snapshot oder the virtual machine.
Solutions for backing up databases:
Linux: Automated MySQL database backup using free script: Download ...
Linux version 2 with web interface and cron jobs: MySQLDumper To Download ...
Windows: Most database systems on Windows based servers might have already a comfortable backup software. In individual software it is often controlled via a batch script. Windows Server 2000 Backups: For help ...
Free MS SQL Backups with simplesql: Download here...