Skip to main content
NetApp Response to Russia-Ukraine Cyber Threat
In response to the recent rise in cyber threat due to the Russian-Ukraine crisis, NetApp is actively monitoring the global security intelligence and updating our cybersecurity measures. We follow U.S. Federal Government guidance and remain on high alert. Customers are encouraged to monitor the Cybersecurity and Infrastructure Security (CISA) website for new information as it develops and remain on high alert.
NetApp Knowledge Base

Why does FabricPool generate more cloud storage load on ONTAP reboot?

Last Updated:

Applies to

ONTAP 9.4 or higher


When an ONTAP node reboots or a volume comes online, it may be noticed that there is more I/O going to the cloud than normal. This can be following a normal takeover/giveback, aggregate relocation, or even creating new volumes can do this. Why is this?
  • ONTAP has a feature in FabricPool called "tiering scan" that will check if blocks need to be moved to the cloud or should stay on the local tier. When ONTAP is rebooted, or a volume comes online, it may not be unusual to see extra I/O coming from ONTAP, especially in a cluster with multiple nodes where they are all tiered to the cloud.
  • This behavior is normal and is expected with ONTAP 9.4 and newer releases.


Scan to view the article on your device