Skip to main content
NetApp Knowledge Base

Why "volume show" shows a value greater than 0 for "Space Saved by Deduplication" even if volume efficiency policy is not set ?

  1. Last updated
  2. Save as PDF
Views:
466
Visibility:
Public
Votes:
4
Category:
data-ontap-8
Specialty:
CORE
Last Updated:

​ ​ ​  

Applies to

ONTAP 9

Answer

This is expected behavior when using ODX for copy offload on storage virtual machine (SVM) , because ODX uses deduplication as part of copy process.

In this case, "volume efficiency show" command shows volume efficiency policy is disabled.

Example:

::> volume efficiency show
Vserver    Volume           State     Status      Progress           Policy
---------- ---------------- --------- ----------- ------------------ ----------
SVM_name   Volume_name      Idle      Idle for 1049:24:04 -        Disabled

However, "volume show" output shows value grater than 0kb at "Space Saved by Deduplication".

Example:

::> volume show -volume vol1
                                     Vserver Name: SVM1
                                      Volume Name: vol1
...
        Volume Contains Shared or Compressed Data: true
                Space Saved by Storage Efficiency: 768KB
           Percentage Saved by Storage Efficiency: 0%
                     Space Saved by Deduplication: 768KB

Additional Information

Add your text here.

 

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.