Skip to main content
NetApp Knowledge Base

Slow FabricPool on StorageGRID VMs with io wait due to Pointer Block Cache

Views:
194
Visibility:
Public
Votes:
2
Category:
storagegrid
Specialty:
sgrid
Last Updated:

Applies to

  • StorageGRID 11.x
  • Virtualized StorageGRID storage nodes
  • ONTAP 9
  • FabricPool

Issue

  • ONTAP 9 has slowness in FabricPool response times
  • StorageGRID is configured to use virtual appliances on VMWare ESXI
  • There are high i/o waits in the StorageGRID dashboard with 100% CPU on one node of StorageGRID
  • No ONTAP, backend, or network latency or errors are seen
  • Example: From the StorageGRID Support Node Grafana dashboard, high CPU and i/o wait are seen

cpuiowaitSG.PNG

 

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.