根 据各种版本的解释，关于这三种备份方式这里有个经team实践后，认为比较标准的解释，说说哈。相关资料参考了Symantec Backup Exec (tm) for Windows Servers 11d revision，这里面对三个定义的解释比较准确，现在分享一下：
1、Full. Includes all of the data that was selected for backup and
uses the full backup method
完全备份包括选择用于备份的所有数据，并使用完全备份方法
2、Differential. Includes all files that have changed
sincethe
last full or incremental backup.The
difference between differential and incremental backups is that
incremental backups is that incremental backups include only the
files that have changed since the last full or incremental
backup
差异备份包括自上次完全备份或增量备份以来更改过的所有文件。差异备份和增量备份之间的区别在于增量备份只包括自上次完全备份或增量备份以来更改的文件。
3、Incremental.Incremental backups include only the files that have
changed since the last full or incremental backup.
增量备份仅仅包括从上次完全备份或增量备份以来更改过的文件。
