[ovirt-users] Adding local block storage

Hi, I have a 4.2 ovirt installation with the ovirt engine on one physical host and two other physical hosts already successfully added in my "Hosts". I want to use a local block device on one of the hosts for storage and I can't find any guide on how to do that. I tried putting the host in maintenance mode and then select "Configure local storage" and put "/dev/sdb" where it says "Set the path to your local storage:". Then I get the error: 2018-10-24 05:38:11,166-04 ERROR [org.ovirt.engine.core.bll.storage.connection.FileStorageHelper] (default task-37) [_WEBADMIN_15309851_Configure_Local_Storage] The connection with details '/dev/sdb' failed because of error code '469' and error message is: permission settings on the specified path do not allow access to the storage. What am I doing wrong?