virsh blockcommit pavmkvm801 vda --active --verbose --pivot

QCOW2 (QEMU Copy On Write) is the standard disk image format for QEMU/KVM. Unlike raw disk images, QCOW2 files grow as data is written, meaning a 100GB virtual disk might only take up 2GB of physical space initially if the data inside is small.

virsh snapshot-create-as pavmkvm801 snap1 --disk-only --atomic

New overlay file: pavmkvm801.snap1

To understand the importance of the "new" variant, we must first break down the nomenclature:

# 1. Create new image
qemu-img create -f qcow2 pavmkvm801.qcow2 30G

Pavmkvm801qcow2 New <2024-2026>

virsh blockcommit pavmkvm801 vda --active --verbose --pivot

QCOW2 (QEMU Copy On Write) is the standard disk image format for QEMU/KVM. Unlike raw disk images, QCOW2 files grow as data is written, meaning a 100GB virtual disk might only take up 2GB of physical space initially if the data inside is small.

virsh snapshot-create-as pavmkvm801 snap1 --disk-only --atomic

New overlay file: pavmkvm801.snap1

To understand the importance of the "new" variant, we must first break down the nomenclature: pavmkvm801qcow2 new

# 1. Create new image
qemu-img create -f qcow2 pavmkvm801.qcow2 30G