My Oracle Support Banner

OLVM: Convert image disk format between Raw and Qcow2 (Doc ID 2907863.1)

Last updated on JANUARY 25, 2024

Applies to:

Linux OS - Version Oracle Linux 7.6 with Unbreakable Enterprise Kernel [4.14.35] and later
Linux x86-64

Purpose

For thin provision image on both file based and block based Storage domain, qcow2 format is used by default; for preallocated image on file based Storage domain and block based Storage domain, raw format is used by default.

Raw can use preallocated or thin provisioning allocation on a file based Storage Domain, but only use preallocated allocation on a block based Storage Domain.
Qcow2 uses thin provisioning allocation on both a file based and a block based Storage Domain.

  Thin Provision Preallocated
File Based Raw/QCOW2 Raw
Block Based QCOW2 Raw

 

 

 

Within above restriction, this document describes how to convert image disk format between Raw and Qcow2.

 

Details

To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!


In this Document
Purpose
Details

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.