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sysadmin.adoc: add LVM configuration options

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Dietmar Maurer 2016-01-06 13:40:12 +01:00
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@ -232,11 +232,49 @@ You normally select *Install Proxmox VE* to start the installation.
After that you get prompted to select the target hard disk(s). The After that you get prompted to select the target hard disk(s). The
`Options` button aside lets you select the target file system, and `Options` button aside lets you select the target file system, and
defaults to `ext4`. defaults to `ext4`. The installer uses LVM if you select 'ext3',
'ext4' or 'xfs' as file system, and offers additional option to
restrict LVM space.
If you have more than one disk, you can also select ZFS here. ZFS
supports several software RAID levels, so this is specially useful if .Advanced LVM configuration options
you do not have a hardware RAID controller. ****
The installer creates a Volume Group (VG) called `pve`, and additional
Logical Volumes (LVs) called `root`, `data` and `swap`. The size of
those volumes can be controlled with:
`hdsize`::
Defines the total HD size to be used. This way you can save free
space on the HD for further partitioning (i.e. for an additional PV
and VG on the same hard disk that can be used for LVM storage).
`swapsize`::
To define the size of the `swap` volume. Default is the same size as
installed RAM, with 4GB minimum and `hdsize/8` as maximum.
`maxroot`::
The `root` volume size. The `root` volume stores the whole operation
system.
`maxvz`::
Define the size of the `data` volume, which is mounted at
'/var/lib/vz'.
`minfree`::
To define the amount of free space left in LVM volume group `pve`.
16GB is the default if storage available > 128GB, `hdsize/8` otherwise.
+
NOTE: LVM requires free space for snapshot creation.
****
If you have more than one disk, you can also use ZFS as file system.
ZFS supports several software RAID levels, so this is specially useful
if you do not have a hardware RAID controller.
TIP: ZFS uses a lot of memory, so it is best to add additional 8-16GB RAM TIP: ZFS uses a lot of memory, so it is best to add additional 8-16GB RAM
if you want to use ZFS. if you want to use ZFS.