The primary location where data stored on servers is saved. Depending on the amount of data and implementation, this can even be a USB flash drive. In the past, tape storage devices were preferred, but nowadays they prefer to use a USB external hard drive or network storage device (NAS), mainly because of the speed and the cheaper price. Local backup is also required to create a remote backup.
For backups, it is important to follow the so-called 3-2-1 rule, which means that for a given environment:
- We have 3 backups
- On 2 different types of media
- Store 1 copy offline and preferably off-site
Backups are performed by a configured rescue program, which must be selected with several considerations in mind:
- Want to save a physical or virtual environment?
- What kind of media do we want to make backups of?
- What support is available for this software?
- What are the limitations of multiple licensed versions?
- Is buying or renting more advantageous?
Most reputable backup programs have free versions available, which, with many restrictions, are usable and great for smaller companies.
To save a physical machine:
We recommend Veeam Agent for Microsoft Windows Free or Veeam Agent for Linux Free. It can be used completely free of charge. The downside is that only 1 timer can be set in the free version.
Altaro Physical Server Backup - a virtualization program, the entire machine is restored to a virtual environment
To save virtual servers:
Altaro VM Backup is available for both Hyper-V and VmWare virtualization environments. Can be used for 2 virtual machines for free. The downside is that the free version does not automatically delete old backups, this needs to be addressed manually. Offsite backup is only available on an external disk.
Veeam Backup & Reprication Community Edition - a full-featured program for both Hyper-V and VmWare environments. The free version is limited to 10 virtual machines.
Vembu BDR Suite - a full-featured program for both Hyper-V and VmWare environments. The free version is limited to 10 virtual machines. The free version only allows 1 timer for full use, however, limited backups can be run with a newer timer.