High Availability Cluster (高可用集群) Website Service High Availability Cluster (网站服务高可用集群) Apache + Pacemaker Storage Services High Availability Cluster (存储服务高可用集群) Inotifywait + Rsync Distributed Replicated Block Device (DRBD) DRBD + Pacemaker + NFS DRBD + Keepalived + NFS + Shell FTP + Pacemaker Database High Availability Cluster (数据库高可用集群) MariaDB & MySQL Highly Availability (高可用) MariaDB Galera Cluster (MGC) MySQL Group Replication (MGR) Master HA (MHA) Master-Master Replication Manager for MySQL (MMM) Percona XtraDB Cluster (PXC) MongoDB High Availability (高可用) ElasticSearch High Availability (高可用) Redis High Availability (高可用)
