V-76-58645-19931: Shrink operation is not allowed on a volume configured for Copy-on- write (COW) snapshot.

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Article ID: 100050506

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Updated On:

Description

Error Message

Error V-76-58645-19931: Shrink operation is not allowed on a volume configured for Copy-on- write (COW) snapshot.

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Cause

As per https://support-staff.cloud.com/wolken/esd/knowledge-base-view/view-kb-article?articleNumber=100044699&isLocationBackOnHome=true&hideTabs=true , if a volume has any snapshots or detached mirrors, then the shrink operation for it, is rejected.

Resolution

1)  Navigate to VEA -> Right Click the concerned Volume and look for Shadow Storage Tab as in the below image:

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2) Look for shadow copies using the below command:

VSSADMIN LIST SHADOWS

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VSSADMIN LIST SHADOWSTORAGE

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3)    Delete the Shadow Copies using the below command:

vssadmin delete shadows /for=: /all

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NOTE: Please take due diligence while deleting the shadows and should be attempted only on customer consent.

4) Now that the Shadow Copies are deleted, navigate to the Shadow Storage and remove the concerned Volume from the Shadow Storage:

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5)  After a successful removal of Shadow Storage, the shrink operation should now be a success.

 

 

Issue/Introduction

When attempting a shrink Operation for a volume configured using Veritas Storage Foundation/Infoscale, it fails with Error: Shrink operation is not allowed on a volume configured for Copy-on- write (COW) snapshot.