Incremental Backups

Some articles on backup, backups, incremental backups, incremental:

Duplicity (software)
... encrypted, digitally signed, versioned, remote backup of files requiring little of the remote server ... Duplicity devises a scheme where the first archive is a complete backup and subsequent backups are only adding differences from the first backup ... Chains consisting of a full backup and a series of incremental backups can be recovered to the point in time that any of the incremental steps were taken ...
Extensible Storage Engine - Backup and Restore
... ESE supports on-line backup where one or more databases are copied, along with log files in a manner that does not affect database operations ... Databases can continue to be queried and updated while the backup is being made ... The backup is referred to as a ‘fuzzy backup’ because the recovery process must be run as part of backup restoration to restore a consistent set of databases ...
Storage, The Base of A Backup System - Data Repository Models
... Any backup strategy starts with a concept of a data repository ... The backup data needs to be stored somehow and probably should be organized to a degree ... It can be as simple as a sheet of paper with a list of all backup tapes and the dates they were written or a more sophisticated setup with a computerized index, catalog, or relational database ...