跳转到主内容

为什么使用的 LUN 大小与使用的 LUN 主机大小不同？

  1. 最后更新
  2. 另存为PDF
Views:
83
Visibility:
Public
Votes:
0
Category:
ontap-9
Specialty:
san
Last Updated:

适用于

  • ONTAP 9
  • SAN

问题解答

  • 这是 LUN 托管在空间保证卷上的预期行为。
  • 空间差异是由于在存储端的卷和 LUN 上都启用了密集置备。
  • 无论实际写入的数据量是多少，密集配置的 LUN 都会为整个 LUN 大小保留空间。
  • 密集配置卷（空间保证 = 卷）为整个卷大小保留空间，包括为 LUN 保留的空间，以及任何其他开销（如 WAFL 元数据、快照或其他文件）。
  • 因此，ONTAP 将卷上的"已用"空间报告为总保留空间，这可能远高于写入 LUN 的实际数据。

追加信息

NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the information or observance of any recommendations provided herein. The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. This document and the information contained herein may be used solely in connection with the NetApp products discussed in this document.