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sysadmin.adoc: improve install docs

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Dietmar Maurer 2016-01-17 10:53:35 +01:00
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@ -223,22 +223,53 @@ wrong. Please press `CTRL-D` to exit those debug consoles and continue
installation. This option is mostly for developers and not meant for
general use.
Rescue Boot::
This option allows you to boot an existing installation. It searches
all attached hard disks, and if it finds an existing installation,
boots directly into that disk using the existing Linux kernel. This
can be useful if there are problems with the boot block (grub), or the
BIOS is unable to read the boot block from the disk.
Test Memory::
Runs 'memtest86+'. This is useful to check if your memory if
functional and error free.
You normally select *Install Proxmox VE* to start the installation.
You normally select *Install Proxmox VE* to start the installation.
After that you get prompted to select the target hard disk(s). The
`Options` button aside lets you select the target file system, and
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.
restrict LVM space (see <<advanced_lvm_options,below>>)
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. The `Options` button
lets you select the ZFS RAID level, and you can choose disks there.
The next pages just asks for basic configuration options like time
zone and keyboard layout. You also need to specify your email address
and select a superuser password.
The last step is the network configuration. Please note that you can
use either IPv4 or IPv6 here, but not both. If you want to configure a
dual stack node, you can easily do that after installation.
If you press `Next` now, installation starts to format disks, and
copies packages to the target. Please wait until that is finished,
then reboot the server.
Further configuration is done via the Proxmox web interface. Just
point your browser to the IP address given during installation
(https://youripaddress:8006). {pve} is tested for IE9, Firefox 10
and higher, and Google Chrome.
.Advanced LVM configuration options
****
[[advanced_lvm_options]]
Advanced LVM configuration options
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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:
@ -269,43 +300,21 @@ Define the size of the `data` volume, which is mounted at
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.
****
NOTE: LVM requires free space in the VG for snapshot creation (not
required for lvmthin snapshots).
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.
.ZFS Performance Tips
****
ZFS Performance Tips
^^^^^^^^^^^^^^^^^^^^
ZFS uses a lot of memory, so it is best to add additional 8-16GB RAM
if you want to use ZFS.
.Use fast SSD as write cache
ZFS provides the feature to use a fast SSD drive as write cache. The
ZFS also provides the feature to use a fast SSD drive as write cache. The
write cache is called the ZFS Intent Log (ZIL). You can add that after
installation using the following command:
zpool add <pool-name> log </dev/path_to_fast_ssd>
****
The next pages just asks for basic configuration options like time
zone and keyboard layout. You also need to specify your email address
and select a superuser password.
The last step is the network configuration. Please note that you can
use either IPv4 or IPv6 here, but not both. If you want to configure a
dual stack node, you can easily do that after installation.
If you press `Next` now, installation starts to format disks, and
copies packages to the target. Please wait until that is finished,
then reboot the server.
Further configuration is done via the Proxmox web interface. Just
point your browser to the IP address given during installation
(https://youripaddress:8006). {pve} is tested for IE9, Firefox 10
and higher, Google Chrome (latest).
Network Configuration