ZFS 2.4.0 Special Device + Data VDEV Report Very Wrong Remaining Space #18190
Description
Distribution Name | Proxmox 9.1.5 Debian Trixie 13
Distribution Version | Proxmox 9.1.5 Debian Trixie 13
Kernel Version | Linux 6.17.9-1-pve
Architecture | x86_64
OpenZFS Version | zfs-2.4.0-pve1 - zfs-kmod-2.4.0-pve1
My zpool has 2 device: sdb (HDD) and sda (nvme)
The issue is all dataset report the remaining free space by using the “HDD (data) size - (HDD + NVME usage) = 448GB” while hardware wise the HDD has 1.6T and the NVME has 800G left.
My expectation would be for it to consider the HDD remaining (1.6T) as actual free space. As in report the free space by what’s available left to write to, not what using the substraction since that gives the wrong info to other programs.
Is this a bug?
