Skip to main content
NetApp Knowledge Base

CIFS/SMB application writes slow to FlexCache because it lacks Write Cache oplock lease

  1. Last updated
  2. Save as PDF
Views:
125
Visibility:
Public
Votes:
0
Category:
ontap-9
Specialty:
nas
Last Updated:

Applies to

  • ONTAP 9
  • FlexCache
  • CIFS/SMB
  • ASC Grid

Issue

  • It takes a long time for a CIFS client or specific application to write a file to a FlexCache volume
    • A packet trace shows that client sending very inefficient write requests that have short lengths and repeatedly overwrite the same offset
    • An example of this application is called ASC Grid
  • If the same CIFS client writes the same file to a FlexVol or the FlexCache origin, the write takes a normal amount of time

 

 

 

Sign in to view the entire content of this KB article.

New to NetApp?

Learn more about our award-winning Support

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.