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| zfs [2025-11-27 14:06] – weichbr | zfs [2026-05-29 10:14] (current) – weichbr |
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| ====== ZFS Cheatsheet ====== | ====== ZFS Cheatsheet ====== |
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| === Create a pool === | ==== Create a pool ==== |
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| * Get disk ids from ''/dev/disk/by-id'', do not use ''/dev/sdX'' | * Get disk ids from ''/dev/disk/by-id'', do not use ''/dev/sdX'' |
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| A good set of defaults for a new pool: | A good set of defaults for a new pool: |
| ''-o autotrim=on -O acltype=posixacl -O xattr=sa -O normalization=formD -O compression=zstd -O atime=on -O relatime=on'' | ''-o autotrim=on -O acltype=posixacl -O xattr=sa -O normalization=formD -O compression=zstd -O atime=on -O relatime=on -O %%"%%com.sun:auto-snapshot%%"%%=false'' |
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| === Create a dataset === | ==== Create a dataset ==== |
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| * ''zfs create <pool>/<dataset>'' | * ''zfs create <pool>/<dataset>'' |
| * Enable comporession: ''-o compression=zstd'' | * Enable comporession: ''-o compression=zstd'' |
| * ''recordsize'' of 128K is default. When storing large files, e.g., media, set this higher, e.g., 1M | * ''recordsize'' of 128K is default. When storing large files, e.g., media, set this higher, e.g., 1M |
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| | Creating a dataset with encryption: |
| | '' echo -n password | zfs create pool/dataset -o compression=zstd -o normalization=formD -o xattr=sa -o acltype=posixacl -o atime=on -o relatime=on -o %%"%%com.sun:auto-snapshot%%"%%=false -o encryption=on -o keyformat=passphrase -o keylocation=file:/%%//%%dev/stdin'' |