Amahi Create Manual Greyhole Setup

	WARNING
	This is recommended for advanced users only, please proceed with caution.

The following guidance is provided to assist users with setting up Greyhole in Amahi 7. This has been tested with no issues. Please note this is ONLY a work around until Greyhole is integrated into the Amahi 7 dashboard.

NOTE: 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.

As root user, perform the following steps:

• Install the package (to get the latest version, follow upgrade guidance):

bash code
​yum -y install hda-greyhole​

• Set up a mysql database and user to access it:

bash code
​hda-create-db-and-user greyhole​

• Load the database schema:

bash code
​mysql -u greyhole -pgreyhole greyhole < /usr/share/greyhole/schema-mysql.sql​

Initialize the basic settings for Greyhole, configure /etc/greyhole.conf:

• Change db_user and db_password to greyhole.
  
• Add a line for each drive (go here for adding new hard drives) in the storage pool at the end of the file. The example below is for two drives:

Text
​storage_pool_directory = /var/hda/files/drives/drive2/gh, min_free: 10gb storage_pool_directory = /var/hda/files/drives/drive3/gh, min_free: 10gb​

NOTE: Although the /etc/greyhole.conf contents indicate storage_pool_drive, it should be storage_pool_directory. 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 for max copies (which is 1 for 2 drives)
  • Pictures for 1 copy (which is the same as max)
  • Movies for no copies

Text
​num_copies[Books] = 999 num_copies[Pictures] = 2 num_copies[Movies] = 1​

NOTE: For a system with 2 Greyhole drives, 1 copy is the max. The first Greyhole drive holds the master copy and the second a copy. The share will contain a symbolic link to the master.

• In the Dashboard, Shares tab add the following to Extra Parameters for each share you will be configuring to use Greyhole:

Text
​dfree command = /usr/bin/greyhole-dfree vfs objects = greyhole​

• Finally, enable greyhole permanently and start the service:

bash code
​systemctl enable greyhole.service systemctl start greyhole.service​

• You can monitor activity by watching /var/log/greyhole.log file:

bash code
​tail -f /var/log/greyhole.log​