一个备份窗口(Backup Window)指在不严重影响应用系统业务的情况 下(即保证系统数据一致性的情况下)，完成一次给定备份的时间间隔，备份窗口的大 小与备份数据...
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Filesystems are generally backed up incrementally to minimize the backup window and to optimize storage space.
文件系统通常为递增备份，这是为了最小化备份窗口和优化存储空间。
It decreases the backup window, ensures the data security and consistency, meets the needs of data backup at low cost.
缩短备份窗口，保证备份速度及数据安全性，降低备份成本。
Study the control of backup granularity and demarcation criterion, and divide backup data to satisfy the system requirement according to backup window and system stability.
研究了备份粒度控制。讨论备份粒度的划分依据，根据备份窗口和系统稳定性划分备份数据，使备份粒度满足系统要求。
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