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How the 'logical used size' is calculated of the 'volume show' command

  1. Last updated
    Aug 9, 2024
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Category:
ontap-9
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core
Last Updated:
8/9/2024, 7:06:25 AM

Applies to

  • ONTAP 9
  • Flexvol Volume

Answer

From the document explanation below, the formula is "Logical Used Size = Used Size + Space Saved by Storage Efficiency"
 
-logical-used  This value includes all the space saved by the storage efficiency features along with the physically used space.This does not include Snapshot reserve but does consider Snapshot spill.
 
  • Example:
::> volume show -vserver <> -volume <> -instance
 
Used Size: 5.43TB
Total Physical Used Size: 5.72TB
 Space Saved by Storage Efficiency: 57.76GB
     Logical Used Size: 5.49TB
   Space Reserved for Snapshot Copies: 5%
       Snapshot Reserve Used: 472%
Logical Size Used by Active Filesystem: 4.37TB
        　       Space Guarantee Style: volume
                    Fractional Reserve: 100%

Additional Information

 

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.