Difference between revisions of "Qcow2"
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↑ https://git.qemu.org/?p=qemu.git;a=blob_plain;f=docs/interop/qcow2.txt;hb=HEAD
↑ https://git.qemu.org/?p=qemu.git;a=blob_plain;f=docs/interop/qcow2.txt;hb=HEAD
↑ https://www.berrange.com/posts/2017/02/10/the-surprisingly-complicated-world-of-disk-image-sizes/
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[[wikipedia:qcow2]]<ref>https://git.qemu.org/?p=qemu.git;a=blob_plain;f=docs/interop/qcow2.txt;hb=HEAD</ref> is a [[file format]] for [[disk image]] files used by [[QEMU]]. qcow2 support [[AES]] and multiple [[snapshots]]. | [[wikipedia:qcow2]]<ref>https://git.qemu.org/?p=qemu.git;a=blob_plain;f=docs/interop/qcow2.txt;hb=HEAD</ref> is a [[file format]] for [[disk image]] files used by [[QEMU]]. qcow2 support [[AES]] and multiple [[snapshots]]. | ||
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| + | A qcow2 image file is organized in units of constant size, which are called (host) clusters. A cluster is the unit in which all allocations are done, both for actual guest data and for image metadata.<ref>https://git.qemu.org/?p=qemu.git;a=blob_plain;f=docs/interop/qcow2.txt;hb=HEAD</ref> | ||
Revision as of 06:38, 3 March 2020
wikipedia:qcow2[1] is a file format for disk image files used by QEMU. qcow2 support AES and multiple snapshots.
A qcow2 image file is organized in units of constant size, which are called (host) clusters. A cluster is the unit in which all allocations are done, both for actual guest data and for image metadata.[2]
qcow2 internal snapshots are best avoided in favour of extenal snapshots. [3]
Activities
- Extend LVM on qcow2 images
- Read about
rawfiles andqcow2differences: https://www.berrange.com/posts/2017/02/10/the-surprisingly-complicated-world-of-disk-image-sizes/
Related terms
See also
qemu-img:qemu-img info,qemu-img check,qemu-img resize,qemu-img create, qcow2,qemu-img rebase,qemu-img convert,qemu-img commit,qemu-img ammend- KVM, Installation, QEMU,
virsh,virtinst,libguestfs-tools, libvirt, qemu, Red Hat Virtualization (RHV), MacVTap, Virtio, oVirt, KVM services, KVM networking, KVM graphics, CPU, KVM on ARM
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