Hard Disk Mirroring and Synchronization
Backup Software / Backup Terms Glossary / Backup Practices / Hard Disk Mirroring
Hard disk mirroring is a process of creating an exact synchronized copy of HDD data. Sometimes it is called synchronization, as it can be used to keep contents of two local or remote locations in sync. To perform it, you need to use a special HDD mirroring software, such as Handy Backup.
Version 7.8.4, built on 22 August, 2016 64.2 MB
The software allows selecting syncing direction: you can choose whether you want to copy one HDD to another, or mirror both disks. The latter requires you to define how to treat files with identical names and different contents.
For files-based mirroring, you can enable synchronization of files with specific extensions only, e.g. MS Word documents, AVI videos, JPG pictures, etc.
Handy Backup software can also copy information on sector level, and create a complete HDD copy. Learn more about hard drive cloning.
Version 7.8.4, built on 22 August, 2016. 64.2 MBBackup Software from Novosoft LLC. 39 USD per license.
Try the basic software edition featuring HDD mirroring smart options (scheduling, mirror filter, etc.) Free 30-days trial version!
Primary function of hard disk mirroring software is preventing data loss, but it shouldn’t be considered as a substitute for backup software, because corruption of data due to virus attacks or user mistakes is interpreted as usual activity, which leads to the same changes on the mirror.
Generally, there are several reasons why you may want to mirror a hard disk:
Protecting Data from Hardware Failure. Having two identical hard disks allows switching instantly to the other disk in case of a failure of the first one.
Creating a Recovery Point. Generally, mirror backups are primarily used for synchronization, but if you perform syncing carefully, you can use the copy to recover hard drive.
Drive Load Balancing. In some cases reading data simultaneously from two disks can noticeably improve system performance.
Data Accessibility. Hard disk mirroring can be used for synchronization of network drives, thus providing access to data which can’t be accessed on the computer with original data.
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Backup Terms Glossary
In our software, hard drive mirroring exploits a files-based method which means that the application performs “common” file system requests, and therefore doesn’t copy system records and data that is not represented as files. To perform complete hard disk cloning, you need to perform an image-based backup.
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