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enhance descriptions of LVM configuration options

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Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
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Thomas Lamprecht 2016-12-09 15:39:36 +01:00 committed by Dietmar Maurer
parent 384871f214
commit fa281da6cb
1 changed files with 14 additions and 7 deletions
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pve-installation.adoc
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@ -124,22 +124,29 @@ and VG on the same hard disk that can be used for LVM storage).
`swapsize`:: `swapsize`::
To define the size of the `swap` volume. Default is the same size as Defines the size of the `swap` volume. The default is the size of the
installed RAM, with 4GB minimum and `hdsize/8` as maximum. installed memory, minimum 4 GB and maximum 8 GB. The resulting value cannot
be greater than `hdsize/8`.
`maxroot`:: `maxroot`::
The `root` volume size. The `root` volume stores the whole operation Defines the maximum size of the `root` volume, which stores the operation
system. system. The maximum limit of the `root` volume size is `hdsize/4`.
`maxvz`:: `maxvz`::
Define the size of the `data` volume. Defines the maximum size of the `data` volume. The actual size of the `data`
volume is:
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`datasize = hdsize - rootsize - swapsize - minfree`
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Where `datasize` cannot be bigger than `maxvz`.
`minfree`:: `minfree`::
To define the amount of free space left in LVM volume group `pve`. Defines the amount of free space left in LVM volume group `pve`.
16GB is the default if storage available > 128GB, `hdsize/8` otherwise. With more than 128GB storage available the default is 16GB, else `hdsize/8`
will be used.
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NOTE: LVM requires free space in the VG for snapshot creation (not NOTE: LVM requires free space in the VG for snapshot creation (not
required for lvmthin snapshots). required for lvmthin snapshots).