====== Web Directories Spread Thin on LVM Toast. Yum! ======
John set a fire in my pants.  That fire was the passion to organize the way I store websites on my server.

Basically, we setup a logical volume for each virtual server. Here's the directory layout:

  * www
    * dev
    * eat8bit
      * htdocs
      * logs
      * includes

The directories dev and eat8bit are actually mounted as separate logical volumes.  

So let's start at the beginning, setting up your partition.

===== Mark That Shit Son! =====
First and foremost, you must mark your partition as Linux LVM.  So fire up the console and enter the commands as follows:

<code>
root@dangerunit0~# fdisk /dev/hde

Command (m for help): p

Disk /dev/hde: 120.0 GB, 120034123776 bytes
255 heads, 63 sectors/track, 14593 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/hde1               1       14593   117218241   83  Linux
</code>

We can see that our drive has a partition that is marked as a standard Linux partition, we'll have to change that.  The Id for a Linux LVM is 8e, so let's change it now:

<code>
Command (m for help): t
Selected partition 1
Hex code (type L to list codes): 8e

Command (m for help): p

Disk /dev/hde: 120.0 GB, 120034123776 bytes
255 heads, 63 sectors/track, 14593 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/hde1               1       14593   117218241   8e  Linux LVM

Command (m for help): w
</code>

You should do this for each disk/partition you plan to use in your volume group.

Now that we've successfully labeled are partition(s) as Linux LVM we can move forward to step 2, creating physical volumes.

===== Create the Volume, Physically =====
Pretty straight forward.  We just execute the below command for each partition we marked above.

<code>
root@dangerunit0~# pvcreate /dev/hde1
</code>

===== Add Them to Your Volume Group =====
Now we add the partitions to our volume group.  I called my group "WebVG0"

<code>
root@dangerunit0~# vgcreate WebVG0 /dev/hde1
</code>



===== The Final Steps: Creating the Logical Volumes =====
That empty volume group is looking mighty fertile. Let us plant the seed:

<code>
root@dangerunit0~# lvcreate -L 500M -n eat8bit WebVG0
</code> 

Then we must make it a filesystem.  

<code>
root@dangerunit0~# mke2fs -j /dev/WebVG0/eat8bit
</code>

<note>I'm using ext3, so modify this step according to your filesystem of choice</note>

and mount it

<code>
root@dangerunit0~# mount /dev/WebVG0/eat8bit /www/eat8bit
</code>

You're going to want to add this to your fstab also.  For further reference, check out [[http://tldp.org/HOWTO/LVM-HOWTO/commontask.html|LVM HowTo - Common Tasks]]

And that's it.  Your new web directory is ready for use, so let's make the directories and edit our apache config.



===== Setting Up the Web Directory =====
Let's make the directories:
<code>
root@dangerunit0~# mkdir /www/eat8bit/htdocs /www/eat8bit/includes /www/eat8bit/log
</code>

And now we edit our vhosts config file:
<code>
root@dangerunit0~# vi /etc/httpd/extra/httpd-vhosts.conf

# Virtual Hosts
#
# If you want to maintain multiple domains/hostnames on your
# machine you can setup VirtualHost containers for them. Most configurations
# use only name-based virtual hosts so the server doesn't need to worry about
# IP addresses. This is indicated by the asterisks in the directives below.
#
# Please see the documentation at
# <URL:http://httpd.apache.org/docs/2.2/vhosts/>
# for further details before you try to setup virtual hosts.
#
# You may use the command line option '-S' to verify your virtual host
# configuration.

#
# Use name-based virtual hosting.
#
NameVirtualHost *:80

#
# VirtualHost example:
# Almost any Apache directive may go into a VirtualHost container.
# The first VirtualHost section is used for all requests that do not
# match a ServerName or ServerAlias in any <VirtualHost> block.
#
<VirtualHost *:80>
        ServerName eat8bit.com
        DocumentRoot /www/eat8bit/htdocs
        ServerAlias www.eat8bit.com
        ServerAdmin abledanger@eat8bit.com
        ErrorLog /www/eat8bit/log/error_log
        CustomLog /www/eat8bit/log/access_log common
</VirtualHost>
</code>

Write the new VirtualHost directive to the file then restart apache:
<code>
root@dangerunit0~# apachectl restart
</code>

Congratulations!!! You have now completed the setup of your Web Directory on its own LV.  For each additional website, just repeat the process from the [[https://wiki.thoughtbit.com/linux:server:lvm#the_final_stepscreating_the_logical_volumes|lvcreate command]] down.
{{tag>:linux :linux:server}}