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 laterLinux 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
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In this Document
Purpose |
Details |