- Definition: A backup saves data to restore it after loss due to disasters, failures, or accidental deletions.
- Types: physical (disks, tapes), virtual machines and cloud storage; each varies in speed, cost and reliability.
- Popular tools: Google Drive, Dropbox, OneDrive, Carbonite, Backblaze, and Acronis; choice according to needs and budget.
What is backup in computing? Backups are used to save data in case it is lost. They are important for any organization that needs to store information electronically. In today's technology landscape, backup solutions include physical backups, virtual machines, tape backups, and cloud storage backups.
What is backup in computing?
A backup is a process of saving data, used in today's technological environment to protect work and workflows in the event of disasters such as floods, fires or other emergencies.
Backups can be stored on hard drives or tapes. Tapes, in particular, are kept in a secure location to prevent damage from water or fire should something happen to the original storage site. In the event of an incident, these tapes allow data to be restored to new storage media, such as hard drives.
Backup of virtual machines
You can also perform virtual machine backups, which means that you create an exact copy of a virtual machine (VM) running on one physical host on another VM running on another physical host, so that if one host fails due to hardware damage or a software failure, an exact copy will still be available in another location where it can be booted immediately without any additional configuration required by users who need to access their VMs again after they have been restored from backups created previously during regular maintenance cycles.
What is backup: Types of backup copies
Different types of backup include physical backups, virtual machines, tape backups, and cloud storage backups.
- Physical backups are performed on hard drives or tapes. The backup is stored in a separate location from the original data, often on a different physical device and/or in another building.
- Virtual machine backups are a set of instructions that tell the computer what to do at the point where data has been lost. When a physical medium is lost, the backup consists only of these instructions and will not contain any data.
Physical backups can be done on hard drives or tapes.
Physical backups are the most common type of backup in the IT space. They can be done on hard drives or tapes, and while they tend to be slower than virtual machine backups, they are also more reliable. However, physical backups tend to be more expensive, as they require additional hardware to store the data at an off-site or remote location (such as a distant office).
A virtual machine backup is a set of instructions that tells your computer what to do when you lose your data. When you lose a physical medium, your backup consists of only these instructions and will not have any data on it.
Tape backups typically use magnetic storage media, such as tape drives and optical disks, as well as solid-state drives (SSDs). Both require special software to read and write to the physical media.
Tape vs. Cloud Backup
Tape backup is obsolete due to its slowness, unreliability, and high cost compared to other forms of data storage. It is not a good option for backups because it is expensive and time-consuming for IT teams to manage all that data – what if there is a fire in the office building or server room? Forget it.
Cloud storage backups are one-way backups that are stored on another server or external service provider that has been configured to store them for a set amount of time before they are deleted. Cloud storage is one of the most popular types of backup because it is cheap, easy to use, and accessible from anywhere in the world.
Cloud backups can be performed using software or hardware solutions, as well as with external providers such as Amazon Web Services (AWS) or Dropbox Business.
Tools for backing up information
There are several tools for making information backups, some of the most popular are the following.
Google Drive
It allows you to store up to 15GB of information for free and has the option of making automatic backups.
Dropbox
It allows you to store up to 2GB of information for free, and also has the option of making automatic backups.
Microsoft OneDrive
It allows you to store up to 5GB of information for free, and has the option of making automatic backups.
Carbonite
It is a paid service that offers unlimited storage and automatic backups.
Backblaze
It is a paid service that offers unlimited storage and automatic backups.
Acronis True Image
It is a paid software that offers a variety of backup and recovery features, such as creating disk image backups and recovering data in case of system failures.
There are many other options available, and the choice will depend on the user's specific needs and budget.
Conclusion: What is backup in computing?
Backups are a fundamental part of any IT infrastructure. Without them, you risk losing important data and workflows in the event of a disaster. However, there are many different types of backups you can use depending on your needs and budget.