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installation: document advanced btrfs options

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Also includes the new `compress` option that has been recently
introduced in the installer.

Signed-off-by: Christoph Heiss <c.heiss@proxmox.com>
 [ TL: small asciidoc format/style fixes ]
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
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Christoph Heiss 2024-11-12 15:33:52 +01:00 committed by Thomas Lamprecht
parent 997a6b4925
commit b4c41140e5
1 changed files with 20 additions and 0 deletions
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@ -349,6 +349,26 @@ on the hard disk(s) for further partitioning (for example to create a
swap-partition). `hdsize` is only honored for bootable disks, that is only the
first disk or mirror for RAID0, RAID1 or RAID10, and all disks in RAID-Z[123].
[[advanced_btrfs_options]]
Advanced BTRFS Configuration Options
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
No swap space is created when BTRFS is used but you can reserve some
unpartitioned space on the install disks for swap. You can either create a
separate partition, BTRFS subvolume or a swapfile using the `btrfs filesystem
mkswapfile` command.
`compress`::
Defines whether compression is enabled for the BTRFS subvolume. Different
compression algorithms are supported: 'on' (equivalent to 'zlib'), 'zlib', 'lzo'
and 'zstd'. Defaults to 'off'.
`hdsize`::
Defines the total hard disk size to be used. This is useful to save free space
on the hard disk(s) for further partitioning (for example, to create a
swap partition).
ZFS Performance Tips
~~~~~~~~~~~~~~~~~~~~