dotfiles/docs/zfs.md

ZFS

Swan runs its root on ext4. The ZFS drives are managed imperatively (this disko configuration is an unused work-in-progress).

The basic ZFS settings are managed here.

Creating a New Dataset

sudo zfs create tank/mydataset
sudo zfs set compression=zstd tank/myzstddataset
sudo zfs set mountpoint=/data/mydataset tank/mydataset

Maintenance

Get Status

sudo zpool status

Replace Disk

sudo zdb
sudo zpool status -g # Show by GUID
sudo zpool offline tank <GUID>
sudo zpool status
# Remove old disk, insert new disk
sudo zdb
sudo zpool replace tank <OLD GUID> /dev/disk/by-id/<NEW PATH>
sudo zpool status

Initial Setup

sudo zpool create tank raidz1 sda sdb sdc
sudo zpool set ashift=12 tank
sudo zpool set autoexpand=on tank
sudo zpool set compression=on tank