Skip to main content
NetApp Knowledge Base

Why are there Negative values in the free capacity column of the LUN report in AIQUM?

  1. Last updated
  2. Save as PDF
Views:
94
Visibility:
Public
Votes:
0
Category:
active-iq-unified-manager
Specialty:
OM
Last Updated:

Applies to

Active IQ Unified Manager 9.8

Answer

  • When downloading a Performance report for LUNs in Unified Manager, the Free Capacity column will show negative values.

  • This is expected behavior when the Used Size value is greater than the value in size (belonging to the original size of the LUN) 

  • Unified Manager will populate the reports available size as a result of  (Size) - (SizeUsed) = Free Capacity.

Example:
 
<CModeLUN UUID="xxxxxx-xxxx-xxxx-xxxxx-xxxxxxx" VolumeRef="VOL_TEST" VserverRef="SVM!" Path="/vol/vol_test/vol_test" IsOnline="true" Size="1869169767424" SizeUsed="1869605892096" IsSpaceReservationEnabled="false" IsSpaceAllocEnabled="false" IsMapped="true" SerialNumber="xxxxxxxxxxxx" MultiProtocolType="windows_2008" Alignment="ALIGNED" AlignmentRaw="aligned" PrefixSize="0" SuffixSize="0" Class="REGULAR" ClassRaw="regular" />

(Size="1869169767424") - (SizeUsed="1869605892096") = -436124672 (-0.406)

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.