![]() This type of backup is often used by businesses that have money they can dedicate to the process of backup. Remote automated - Automated backups that target a hard drive, tape drive or virtual tape library (VTL) over the network fall into this backup. Advanced home users and small businesses will often use this method. Local automated - Automated backups that target a hard drive or tape drive attached to the physical box being backed up fall into this category. Manual - Manual backup would be initiated on a schedule by the user and is the most common method for home users to backup their files. Incremental: An incremental backup backs up all the files that have changed since the last backup.ĭifferential: A differential backup backs up all the files that have changed since the last full backup.ĭepending on your budget and specific RTO and RPO you can choose from manual, local automated, or remote automated. This document will cover three basic types of backup Full, Incremental, and Differential.įull: A full backup backs up all the files in the back up target. Can you lose two hours, two days or two weeks of data?Įxample: if you can withstand losing one week of data then a weekly backup would be sufficient, but if you can only withstand losing one day then you would need to employ a nightly backup (or a variation) Recovery point objective ( RPO): How much data can be lost. Recovery time objective ( RTO): How fast should data be recovered? Can you continue to operate if data recovery is not recovered for a day, a week, etc? There are many methods to provide backup and recovery choosing the best process for you or your business will have to take several factors in to account. Medium? - Attached storage (usb stick, usb hard drive, tape drive), backup server? Where? - Where will the backups be stored? On-site? Off-Site? Cloud? When? - When is the best time to backup your system? How often will you perform a backup? When will you use full backups and incremental backups. What? - What are you going to backup? Your entire hard drive or just some of the data? Why? - Why are you protecting yourself against disaster? Does it matter if you lose data? What losses will you suffer ($$$)? So learn from others mistakes, and ensure beforehand that you have a system in place that protects your data and suits your needs.īefore deciding on a backup and recovery strategy you have to ask the following questions: Attempting to recover from data loss can be both time consuming and extremely difficult. Users often only learn this lesson after critical information they require is permanently lost. Failure to have verified backup and recovery procedures puts your data at risk of loss.
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