| Feature | Specification in "new" version | | :--- | :--- | | | qcow2 | | Cluster Size | 64 KB (optimal for SSDs and NVMe) | | Preallocation | Metadata only (falloc) – balances speed vs. disk usage | | Compression | zstd (Zstandard) level 3 – replacing legacy gzip for 70% faster decompression | | Compatibility | QEMU 6.0+ required; libvirt 7.0+ recommended | | Encryption | AES-256 (LUKS based) optionally pre-configured via qemu-img | | Virtual Size | 80 GB (sparse, actual usage typically 8-12 GB) |
Whether you are managing a private cloud, running a home lab, or developing next-gen applications on QEMU/KVM, understanding this update is crucial. This article breaks down what the pavmkvm801qcow2 format is, what the "new" iteration entails, and why this marks a significant milestone for storage optimization in virtual environments. pavmkvm801qcow2 new