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是否可以在ONTAP 9中使用Snapshot或SnapMirror还原SAN启动卷

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ontap-9
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适用场景

  • ONTAP 9
  • SAN 启动
  • Snapshot
  • SnapMirror

问题解答

  • 是的、这是可能的。
  • 但是、能否成功将主机操作系统还原到先前的状态取决于操作系统本身、而不是存储系统。
注:
  • Snapshot的一致性: 
    • 在操作系统运行期间创建Snapshot时、可能存在操作系统缓存的尚未写入存储的数据。
    • 还原此类Snapshot可能会导致文件系统不一致、从而导致操作系统无法正常启动。
  • ONTAP的角色:
    • ONTAP可以随时为卷(包括LUN)创建Snapshot。
    • 但是、从操作系统角度来看、ONTAP无法确定LUN中的文件系统是否处于一致状态。
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