ZFS: Difference between revisions
Add short command to know the difference between different disk/by-* paths
m (→Importing on boot: fix zpool cache filename; add usage for /dev/disk/by-id.) |
(Add short command to know the difference between different disk/by-* paths) |
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==== boot.zfs.devNodes ==== | ==== boot.zfs.devNodes ==== | ||
If NixOS fails to import the zpool on reboot, you may need to add <syntaxhighlight lang="nix" inline>boot.zfs.devNodes = "/dev/disk/by-path";</syntaxhighlight> or <syntaxhighlight lang="nix" inline>boot.zfs.devNodes = "/dev/disk/by-partuuid";</syntaxhighlight> to your configuration.nix file. | If NixOS fails to import the zpool on reboot, you may need to add <syntaxhighlight lang="nix" inline>boot.zfs.devNodes = "/dev/disk/by-path";</syntaxhighlight> or <syntaxhighlight lang="nix" inline>boot.zfs.devNodes = "/dev/disk/by-partuuid";</syntaxhighlight> to your configuration.nix file. | ||
The differences can be tested by running <code>zpool import -d /dev/disk/by-id</code> when none of the pools are discovered, eg. a live iso. | |||
==== declarative mounting of ZFS datasets ==== | ==== declarative mounting of ZFS datasets ==== | ||
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'''Note:''' zpool config can significantly affect performance (especially the ashift option) so you may want to do some research. The [https://jrs-s.net/2018/08/17/zfs-tuning-cheat-sheet/ ZFS tuning cheatsheet] or [https://wiki.archlinux.org/title/ZFS#Storage_pools ArchWiki] is a good place to start. | '''Note:''' zpool config can significantly affect performance (especially the ashift option) so you may want to do some research. The [https://jrs-s.net/2018/08/17/zfs-tuning-cheat-sheet/ ZFS tuning cheatsheet] or [https://wiki.archlinux.org/title/ZFS#Storage_pools ArchWiki] is a good place to start. | ||
<syntaxhighlight lang="bash"> | <syntaxhighlight lang="bash"> | ||
zpool create -O encryption=on -O keyformat=passphrase -O keylocation=prompt -O compression= | zpool create -O encryption=on -O keyformat=passphrase -O keylocation=prompt -O compression=zstd -O mountpoint=none -O xattr=sa -O acltype=posixacl -o ashift=12 zpool /dev/nvme0n1p2 | ||
zfs create zpool/root | zfs create zpool/root | ||
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} | } | ||
</syntaxhighlight> | </syntaxhighlight> | ||
== Importing on boot == | == Importing on boot == | ||