Skip to main content
NetApp Knowledge Base

A disk reports reservation issues when the "disk assign" command is run to assign disk ownership

Last Updated:

Applies to

  • Product Model: FAS3220
  • OS: Data ONTAP 8.1.2 7-Mode


At times, it is necessary to migrate disk ownership from a controller to a partner controller. When the disk ownership has been removed from the controller, the disk assign command is run to assign the disk ownership.

However, the command fails with the disk reporting reservation issues:

Ownership for disk 3a.31.16 (S/N 6SL68C9G0000B34002AD) cannot be changed because system??(ID 1911953589) currently owns the persistent reservation.

Running the disk show -v command displays that the disk in question has no owner but is still being reserved by a different system.

The disk show -v -z command will also display the ID number of the system that owns the reservation on the disk in the 'PRkey' field.

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.