某些应用程序在 FlexCache 卷上表现不佳

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Category:: ontap-9

Specialty:: nas

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适用于

ONTAP 9
FlexCache
CIFS/SMB

问题描述

用户在使用访问存储在 ONTAP CIFS 共享上的文件的应用程序时遇到性能不佳的问题 FlexCache

从在 ONTAP 节点上收集的数据包跟踪得出的 SMB2 服务响应时间 (SRT)

===========================================================================
 SMB2 Service Response Time Statistics - e0a_20251009_072351.trc0:
 Index  Procedure  Calls  Min SRT (s)  Max SRT (s)  Avg SRT (s)  Sum SRT (s)
 ---------------------------------------------------------------------------
 SMB2
 Close      6  7797   0.000022   0.357435   0.004638   36.161835
 Create     5  8170   0.000075   3.059123   0.015026  122.763699
 Find      14  1920   0.000025   1.604687   0.032183   61.792121
 GetInfo    16  4383   0.000039   0.094130   0.002366   10.371389
 Ioctl     11   33   0.000050   0.000479   0.000150   0.004939
 Notify     15   11   1.585816  376.230103   49.690147  546.591618
 Read      8 12285   0.000030   2.493342   0.004877   59.915164
 SetInfo    17   640   0.000053   0.058788   0.014454   9.250445
 Tree Connect  3    7   0.000081   0.000131   0.000105   0.000734
 Tree Disconnec 4    7   0.000067   0.000097   0.000082   0.000576
 Write      9 34371   0.000081   1.013845   0.012086  415.424646
 SMB2
 ---------------------------------------------------------------------------

观察结果：
- 更多写入密集型工作负载
- Create 和 Close 调用数量相对较多