Skip to main content
NetApp Knowledge Base

Volume Space Discrepancy After Rsync Migration from AFF to FAS

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

Applies to

  • NetApp ONTAP 9.16.1P6 and later
  • AFF (All Flash FAS) source volumes
  • FAS destination volumes (including FlexGroup)
  • Environments migrating data using rsync
  • Space efficiency features (TSSE, deduplication, compression, compaction)

Issue

  • After migrating data from an AFF FlexVol volume to a FAS FlexGroup volume using rsync, on one node, the destination volume on the FAS system reports significantly higher used space (e.g. ~160GB more) compared to the source
  • Running the "du" command, you will see identical client-side usage
  • The discrepancy is only visible in ONTAP-reported used space.
  • Running a manual storage efficiency scan on the FAS volume to reclaim any possible space does not resolve the space reporting concern

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.