Skip to main content
NetApp Knowledge Base

Why UM shows Qtree Space Full event on  allocated volume size when quota is not set?

Views:
224
Visibility:
Public
Votes:
0
Category:
active-iq-unified-manager
Specialty:
om
Last Updated:

Applies to

  • ActiveIQ Unified Manager (UM) 9.6 +
  • OnCommand Unified Manager (UM) 9.5 and below
  • Qtree
  • Quota
  • Volume

Answer

  • Qtrees calculate the allocated volume size as usable capacity if quota is not set
  • UM will trigger the Qtree Space Full alert in case the thrshold set for the qtree is breached based on the allocated volume size
  • Qtrees do not support space reservation/space guarantees, so max autogrow size of the volume doesnt taken into consideration for qtree alerting
  • for example:
  • A qtree is created on top of the volume without quotavolume allocated size is 100G with max autogrow allowed till 120GB
  • UM threshold for Qtree Space Full and Volume Space Full both is set at 90%
  • By design, a Qtree Space Full alert will be triggered when the volume is 90GB used and a Volume Space Full alert will be triggered when it is 108GB used.
 
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.