磁带提供与磁盘系统不同的技术区别，离线备份能够解决安全和数据保护问题。
Tape provides another technical differentiator from disk systems that addresses both security and data protection concerns: a completely offline copy of data.
客户通常会在数据中心使用交换磁盘或 LUN-level 技术来为计划内和计划外中断提供本地保护，但不涉及到磁盘子系统。
Typically, clients use switched disk or LUN-level switching within a data center to provide local protection from planned and unplanned outages not involving the disk subsystem.
系统文件的权限被自动保护，并会在软件更新时进行更新。磁盘工具中的修复权限功能已经不再需要。
System file permissions are automatically protected, and updated during Software Updates. The Repair permissions function is no longer necessary.
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