Zmanda Blogs

SQL Server

Near-Continuous Data Protection (CDP) of SQL Server

With version 4.5, ZCB now supports incremental (log-based) backups of SQL Server. This helps a great deal since log backups contain a list of all the individual changes to the database, and hence, provide an ability to restore the database to any historic timestamp, regardless of the actual backup time. Why do we call this near-CDP and not …

Hyper-V Servers

Hello Hyper-V servers!

Now, you can use ZCB to protect your guest virtual machines running on a Hyper-V 2008 Server and Hyper-V 2012 Server. You can backup specific VMs or back all up in a single backup set.   Both “Saved State” and “Child VM Snapshot” backup mechanisms are supported. Since the latter method doesn’t cause any downtime …

Tape Backup with Amanda

Amanda and Grandfather-Father-Son (GFS) Backup Tape Rotation

The GFS tape rotation scheme is a popular method of maintaining backups on a daily, weekly, and monthly basis. The primary purpose of the GFS scheme is to suggest a minimum standard and consistent interval at which to rotate and retire the media. In general, GFS tape backup schemes are based on a seven-day weekly schedule beginning …