View source for Amahi Create Manual Greyhole Setup

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Amahi application [https://www.amahi.org/apps/greyhole-ui Greyhole UI] provides this capability.}}

The following guidance is provided to assist users with setting up [[Greyhole]] in Amahi 7.  This has been tested with no issues, however the recommended method of install is via [https://www.amahi.org/apps/greyhole-ui Greyhole UI] plugin with dashboard integration.

<b>NOTE:</b>  There is no guarantee this will work for you or not cause problems with your Amahi 7 install.  Please proceed with caution as carelessness could cause data loss.  Also you might want to check out the [[Greyhole]] wiki page for additional information, such as working with shares locally on the HDA.

As [[Open_Terminal_as_root|root user]], perform the following steps:
* Install the package:
<pre>yum -y install amahi-greyhole</pre>
* Set up a mysql database and user to access it:
<pre>hda-create-db-and-user greyhole</pre>
* Load the database schema:
<pre>mysql -u greyhole -pgreyhole  greyhole < /usr/share/greyhole/schema-mysql.sql</pre>

Initialize the basic settings for Greyhole, configure /etc/greyhole.conf:
* Make sure the settings for the database are correct: <u>db_user</u> and <u>db_password</u> should be <i>greyhole</i>
* Add a line for each drive in the storage pool at the end of the file.  The example below is for two drives:
<pre>storage_pool_drive = /var/hda/files/drives/drive2/gh, min_free: 10gb
storage_pool_drive = /var/hda/files/drives/drive3/gh, min_free: 10gb</pre>

:'''NOTE''':  If you have not initialized your newly added hard drives, refer to [[Adding_a_second_hard_drive_to_your_HDA|adding new hard drives]].

<b>NOTE:</b>  Although the /etc/greyhole.conf contents indicate <b>storage_pool_drive</b>, it should be <b>storage_pool_directory</b>.  If you don't set it correctly, Greyhole will not work.

* Now configure the number of copies per share.  The example below sets the shares as follows:
** Books: max copies (which is 2 for 2 drives)
** Pictures: 2 copies (i.e. 1 extra copy)
** Movies: no extra copies (data loss will occur if one of your drive fails)
<pre>num_copies[Books] = max
num_copies[Pictures] = 2
num_copies[Movies] = 1</pre>

* In the Dashboard, Shares tab add the following to [[Share_Extra_Parameters|Extra Parameters]] for each share you will be configuring to use Greyhole:
<pre>dfree command = /usr/bin/greyhole-dfree
vfs objects = greyhole</pre>

* Finally, enable greyhole permanently and start the service:
<pre>systemctl enable amahi-greyhole.service
systemctl start amahi-greyhole.service</pre>

* You can monitor activity by watching /var/log/greyhole.log file:
<pre>tail -f /var/log/greyhole.log</pre>

* If you intend to modify or work with your files locally on the HDA, refer to [[Mount_Shares_Locally|Mount Shares Locally]] for guidance.

Return to [[Amahi_7_installation|Amahi 7 Installation]] page.