Skip to main content
NetApp Stage KB

Active IQ Unified Manager Alert: High Node Utilization Fragmentation

Views:
Visibility:
Public
Votes:
0
Category:
oncommand-unified-manager
Specialty:
OM
Last Updated:

Helpful 

Applies to

  • OnCommand Unified Manager (OnCommand Unified Manager)
  • Active IQ Unified Manager (AIQUM)
  • ONTAP 9

Notes:

  • OnCommand Unified Manager has been rebranded to Active IQ Unified Manager as of the 9.6RC1 (and later) releases
  • For the purposes of this document, Unified Manager will be referred to as ActiveIQ Unified Manager (AIQUM)

 Issue

  • Active IQ Unified Manager reports node disk fragmentation warning alerts in the volumes in the cluster
  • However, performing a reallocate measure displays a very low fragmentation (level 1 or 2).

Example:

From: "Active IQ Unified Manager" <aiqum@company.com>
Date: Jul 4, 2017 6:01 AM
Subject: Performance Alert - 1 new warning system-defined threshold(s) breached on Cluster cluster1
To: "Storage Admins" <storageadmins@company.com>

 Warning System-defined Threshold Event
________________________________________

Summary
Trigger Time:  5:39 am, 4 Jul EDT
Description:  1 new warning system-defined threshold(s) breached on Cluster cluster1
________________________________________

p-sdt-cluster1-nod-1212

Policy Name: Node disk fragmentation
       A WARNING event has been triggered on node1 based on the detection of high node utilization caused by high
       percentage of delayed disk write on node1_aggr_sas1.

 

 

 

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.
6726e5df-340f-4622-9c06-2329f21060d8