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46 lines
876 B
Markdown
46 lines
876 B
Markdown
# ZFS
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Swan runs its root on ext4. The ZFS drives are managed imperatively (this
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[disko configuration](../disks/zfs.nix) is an unused work-in-progress).
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The basic ZFS settings are managed [here](../modules/nixos/hardware/zfs.nix).
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## Creating a New Dataset
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```
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sudo zfs create tank/mydataset
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sudo zfs set compression=zstd tank/myzstddataset
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sudo zfs set mountpoint=/data/mydataset tank/mydataset
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```
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## Maintenance
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### Get Status
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```
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sudo zpool status
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```
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### Replace Disk
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```
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sudo zdb
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sudo zpool status -g # Show by GUID
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sudo zpool offline tank <GUID>
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sudo zpool status
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# Remove old disk, insert new disk
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sudo zdb
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sudo zpool replace tank <OLD GUID> /dev/disk/by-id/<NEW PATH>
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sudo zpool status
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```
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## Initial Setup
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```
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sudo zpool create tank raidz1 sda sdb sdc
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sudo zpool set ashift=12 tank
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sudo zpool set autoexpand=on tank
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sudo zpool set compression=on tank
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```
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