Amahi Create Manual Greyhole Setup

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​