zbackup is a globally-deduplicating backup tool, based on the ideas found in rsync. Feed a large .tar into it, and it will store duplicate regions of it only once, then compress and optionally encrypt the result. Feed another .tar file, and it will also re-use any data found in any previous backups. This way only new changes are stored, and as long as the files are not very different, the amount of storage required is very low. Any of the backup files stored previously can be read back in full at any time. The program is format-agnostic, so you can feed virtually any files to it (any types of archives, proprietary formats, even raw disk images -- but see Caveats).
This is achieved by sliding a window with a rolling hash over the input at a byte granularity and checking whether the block in focus was ever met already. If a rolling hash matches, an additional full cryptographic hash is calculated to ensure the block is indeed the same. The deduplication happens then.
Looking for some programs similar to ZBackup? Here are the top-recommended programs we found. Let's take a look if there's anything out there that helps you on whatever platform you're using.
Duplicati is a backup client that securely stores encrypted, incremental, compressed backups on local storage, cloud storage services and remote file servers. The...
Features:
BorgBackup (short: Borg) is a deduplicating backup program. Optionally, it supports compression and authenticated encryption. The main goal of Borg is to provide an...
Features:
Duplicity is a software suite that provides encrypted, digitally signed, versioned, remote backup of files requiring little of the remote server. Duplicity devises a...
Features:
rdiff-backup backs up one directory to another, possibly over a network. The target directory ends up a copy of the source directory, but extra reverse diffs are stored...
Features:
restic is a program that does backups right. The design goals are: Easy, Fast, Verifiable, Secure, Efficient, Free.
Features:
Add your reviews & share your experience when using ZBackup to the world. Your opinion will be useful to others who are looking for the best ZBackup alternatives.
Popular Alternatives
iOS Alternatives
Android Alternatives
Copyright © 2021 TopAlter.com
Sites we Love: AnswerBun, MenuIva, UKBizDB, Sharing RPP