2.7. Managing the glusterd Service

After installing Red Hat Gluster Storage, the glusterd service automatically starts on all the servers in the trusted storage pool. The service can be manually started and stopped by using the glusterd service commands. For more information on creating trusted storage pools, see the Red Hat Gluster Storage 3.4 Administration Guide: https://access.redhat.com/documentation/en-us/red_hat_gluster_storage/3.4/html-single/administration_guide/#idm140612789187008.

Use Red Hat Gluster Storage to dynamically change the configuration of glusterFS volumes without restarting servers or remounting volumes on clients. The glusterFS daemon glusterd also offers elastic volume management.

Use the gluster CLI commands to decouple logical storage volumes from physical hardware. This allows the user to grow, shrink, and migrate storage volumes without any application downtime. As storage is added to the cluster, the volumes are distributed across the cluster. This distribution ensures that the cluster is always available despite changes to the underlying hardware.