Identity

Kernel module: zfs.ko (loaded via modprobe zfs; auto-loaded on most distros)
Main CLI tools: zpool (pool management), zfs (dataset/snapshot management), zdb (low-level diagnostics)
Config: /etc/zfs/ (import cache, key files), /etc/zfs/zpool.cache (auto-import list)
Service: zfs-import-cache.service, zfs-mount.service, zfs-share.service (systemd units)
Logs: journalctl -u zfs-import-cache / journalctl -u zfs-mount / dmesg | grep -i zfs
Distro install: apt install zfsutils-linux (Debian/Ubuntu) / dnf install zfs after adding OpenZFS repo (RHEL/Fedora)
Version check: zpool version / zfs version

Key Operations

Operation	Command
Pool status (all pools)	`zpool status`
Pool status (one pool)	`zpool status <pool>`
Pool list (size/free/health)	`zpool list`
Create mirror pool	`zpool create <pool> mirror <dev1> <dev2>`
Create RAID-Z1 pool	`zpool create <pool> raidz <dev1> <dev2> <dev3>`