[CentOS] Apache, SELinux, and document root on a different partition

[Kenneth Porter]

I want to put the document root for an application on a separate paritition 
that has more space. When I try to configure this I can't access the files 
in the new location. I've got the SELinux attributes set on the directory 
and its files, so I'm thinking it's something about the parent path that 
SELinux doesn't like, but I don't know where that's handled.

My partition is mounted to /mnt/bigdisk2, and I put the app in the wbb3tmp 
subdirectory there:

[root at centos wbb3-tmp]# ls -Za
drwxr-xr-x  apache apache system_u:object_r:httpd_sys_content_t .
drwxr-xr-x  root   root   system_u:object_r:file_t         ..
-rw-r--r--  apache apache system_u:object_r:httpd_sys_content_t 
WCFSetup.tar.gz
-rw-r--r--  apache apache system_u:object_r:httpd_sys_content_t index.html
-rw-r--r--  apache apache system_u:object_r:httpd_sys_content_t install.php
-rw-r--r--  apache apache system_u:object_r:httpd_sys_content_t test.php
[root at centos wbb3-tmp]# pwd
/mnt/bigdisk2/wbb3-tmp


My Apache VirtualHost block contains this:

Alias /wbb3-tmp /mnt/bigdisk2/wbb3-tmp

<Directory "/mnt/bigdisk2/wbb3-tmp">
        AllowOverride AuthConfig Options Limit
        Options +Indexes -ExecCGI +FollowSymLinks +MultiViews
        Order allow,deny
        Allow from all
</Directory>

This works if I disable SELinux.