Skip to main content
NetApp Knowledge Base

Aggregate unrecoverable due to deleted Azure disk

  1. Last updated
  2. Save as PDF
Views:
33
Visibility:
Public
Votes:
0
Category:
netapp_console
Specialty:
ds_cvo
Last Updated:

Applies to

Cloud Volumes ONTAP (CVO)
MS Azure

Issue

Customer removed a disk via the Azure portal and now the data aggregate that was using the disk is offline.

Cause

Initially, there was a back end Azure event that took the disk offline:
 
Tue Aug 26 12:07:38 -0400 [AZURECLSTR-01: dmgr_thread: raid.disk.missing:info]: Disk 0d.2 S/N [sadwve2k7ebcontainer77cccccdddd9] UID [sadwve2k7ebcontainer55cccc2dddd9] is missing from the system
 
The affected disk was removed using the Azure portal portal.  The disk had been enabled with Microsoft's Soft Delete feature, but the configured retention period had been exceeded.  As such, the Azure side garbage collection had permanently removed the disk, rendering the aggregate unrecoverable due the RAID0 configuration that is inherent in all CVO clusters.

Solution

The affected aggregate could not be removed via NetApp Console as it is flagged as a 'corrupt' aggregate.  The aggregate was removed by deleting it via the CVO CLI, then the spare disks were manually removed using the Azure portal.
 
Then a new aggregate was created via NetApp Console and the associated volumes were restored from the customer's off cluster backup.

Partner Notes

None
 

Additional Information

Links

Internal Notes

None

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.