Search results

cluster_size=128k with extended_l2=on makes the qcow2 cluster size 4k, see https://blogs.igalia.com/berto/2020/12/03/subcluster-allocation-for-qcow2-images/

But a more than double performance improvement with proxmox defaulting to the slower one doesn't inspire confidence . Of course my tests could be flawed and I would be interested in knowing if such.

So I follow ZFS development quite closely and understand that the ZVOL code in ZFS isn't optimal and need quite a bit of reworking for performance (no one is sponsoring this currently) which made me question why Proxmox chose ZVOLs over QCOW2 (Note QCOW2 isn't COW on COW, the file format just...