incremental backup


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incremental backup

(operating system)
A kind of backup that copies all files which have changed since the date of the previous backup. The first backup of a file system should include all files - a "full backup". Call this level 0. The next backup could also be a full level 0 backup but it is usually much quicker to do a level 1 backup which will include only those files which have changed since the level 0 backup. Together the level 0 and level 1 backups will include the latest version of every file. Level 1 backups can be made until, say, the backup tape is nearly full, after which we can switch to level 2. Each level includes those files which have changed since the last backup at a lower level. The more levels you use, the longer it will take to restore the latest version of a file (or all files) if you don't know when it was last modified.

Compare differential backup.
References in periodicals archive ?
CBT is an incremental backup technology for VMware that only processes the blocks that have changed.
Syncrify also offers across-the-board folder synchronization and an incremental backup feature that intelligently recognizes small changes to larger projects, thereby making backup jobs run faster and more smoothly.
It supports incremental backup, global deduplication and versatile ways of restoring data.
The advantage of taking an incremental backup rather than a full backup is that it can usually be made more quickly, and it occupies less storage space (either on disk or tape).
BluVault for Servers supports initial Full backup and Incremental backup method.
In addition, all Parallels Desktop 12 for Mac customers will receive a one- year subscription to an industry-leading backup solution from Acronis True Image, which includes a fast incremental backup feature that reduces the time and size of subsequent backups and provides up to 500 GB of free online storage.
SBM leverages R1Soft's Continuous Data Protection Technology, which identifies deltas at the block level and backs up only those files that have changed since the previous incremental backup. This greatly reduces disk I/O and minimizes the strain placed on protected machines effectively reducing traditional backup windows from hours to minutes, even with large datasets.
New features such as Smart Sector backup of XFS data volumes, incremental backup with remote consolidation, an improved graphical user interface and Inline Data Deduplication Compression, streamline the backup process saving you time and making more efficient use of storage space.
Incremental backup for the upgraded ROM is now much more compact at around 15-20MB, saving a lot of storage space.
Bacula Systems said that the plugins includes Delta plugin, which uses signature-based file difference, for backing up large binary files; VMware plugin, with raw level backup via NBD or SAN that removes the necessity to install a File Daemon on each guest; SAN Shared Storage plugin, which optimizes and increases tape library usage by providing shared access to tape drives; Microsoft SQL Server VSS plugin, which performs differential backup and allows restore at the database level; and Microsoft Exchange VSS plugin, that performs incremental backup and allows restore at the mailbox level.
According to the company, the software can help users to comprehensively backup network data, including schedule backup, full backup, incremental backup, differential backup into local hard drives, external hard drives, CD/DVD, tape device and other storage devices.
What's more, EASEUS Todo Backup brings many other advanced features like schedule backup, incremental backup, system snapshot, event-based backup, email notification, etc., to simplify the work of backup and fully protect the servers and workstations.

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