跳转到主内容

在ONTAP系统中、重复数据删除和性能有哪些注意事项?

Views:
12
Visibility:
Public
Votes:
0
Category:
ontap-9
Specialty:
perf
Last Updated:

适用场景

  • ONTAP 9
  • FAS
  • AFF
  • Cloud Volumes ONTAP

问题解答

  • 避免对更改率较高的数据集进行重复数据删除。即、每隔几天就会覆盖一次的数据
  • 避免在存储效率提高小于~10%的卷上运行重复数据删除操作。

示例: datastore 卷的效率提高远高于10%、在此示例中、使用 df -s 命令提高55%

::> df -s datastor​e​​​​ Filesystem used saved %saved Vserver /vol/datastore/ 289150724 356485168 55% svmtest​​​ 
  • 实时效率还会降低每次读取或写入硬盘系统(FAS)时的延迟
    • 由于磁盘延迟成本高昂、FAS系统会默认禁用实时效率功能。
    • AFF或容量闪存会根据需要围绕此功能构建
  • 确保 启用了性能监控、以便可以监控运行重复数据删除时的性能、与空闲时的性能相比、它在CPU/磁盘上的等待时间更低。
    1. ActiveIQ Unified Manager 是一款免费产品、可与存储部署在同一网络中。
    2. ActiveIQ门户 确实具有性能图、但级别非常高。

追加信息

TR-3966 提供了有关FAS和AFF系统中重复数据删除的详细信息

 

 

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.