Skip to main content
NetApp Knowledge Base

Backup or clone may fail for applications using PVCs with decimal units in Astra Control Center

  1. Last updated
  2. Save as PDF
Views:
283
Visibility:
Public
Votes:
10
Category:
astra
Specialty:
not set
Last Updated:

Applies to

  • Astra Control Center 
  • Application Backup using Astra Control Center 
  • Application Clone using Astra Control Center 
  • Trident ontap-nas driver 

Issue

  • An application backup or clone may fail if all the following are true: 
  1. A Kubernetes PersistentVolumeClaim (PVC), VolumeClaimTemplate, or Helm install is created with a volume  size using the International System of Units (SI)/base 10/decimal units (e.g. K, M or G symbols) 
  2. The Trident ontap-nas driver is used to create the volume  
  3. The Persistent Volume Claim (PVC) is attached to a Kubernetes application being managed by Astra 
  4. The PVC within the backup namespace (namespace running the backup pod)  in the original cluster will display a similar error message as seen below. 

kubectl describe pvc <pvc-name> -n <backup namespace name> 

  Warning  ProvisioningFailed    22m (x11 over 27m)     csi.trident.netapp.io_trident-csi-678955886c-9r7mz_1ee2b9b4-d28b-43f1-800e-be43820fdb99  failed to provision volume with StorageClass "ontap-gold": error getting handle for DataSource Type VolumeSnapshot by Name pvc-db35f9ac-41d1-44e2-91f9-01bec673b00c-snap-e8d4ade8-221a-4328-b8ef-dc800ee91d9b-pvc-ifwqo: requested volume size 10000000000 is less than the size 10000003072 for the source snapshot pvc-db35f9ac-41d1-44e2-91f9-01bec673b00c-snap-e8d4ade8-221a-4328-b8ef-dc800ee91d9b-pvc-ifwqo 

  • The same issue occurs if the application is installed via a Helm Chart or a custom manifest.  

 

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.