Skip to main content
We are redesigning the NetApp Knowledge Base site to make it easier to use and navigate. The new and improved site will be available the first week of October. Check out our video or read this KB article to know more about changes you’ll see on the site.
NetApp Knowledge Base

Active IQ Unified Manager Alert: High Node Utilization Fragmentation

Views:
1,381
Visibility:
Public
Votes:
0
Category:
oncommand-unified-manager
Specialty:
om
Last Updated:

Applies to

  • OnCommand Unified Manager (OCUM)
  • Active IQ Unified Manager (AIQUM)
  • ONTAP 9
  • Clustered ONTAP 8.3

Note: 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.

 

 

 

CUSTOMER EXCLUSIVE CONTENT

Registered NetApp customers get unlimited access to our dynamic Knowledge Base.

New authoritative content is published and updated each day by our team of experts.

Current Customer or Partner?

Sign In for unlimited access

New to NetApp?

Learn more about our award-winning Support

 

******************************************************* *******************************************************