LifeKeeper for Linux Product Overview

LifeKeeper is high-availability (HA) cluster software that minimizes system downtime and business loss by monitoring for system failures and automatically switching over to a standby system if the active system fails.

Key Features of LifeKeeper

Provides High-Availability Systems: LifeKeeper offers two main types of monitoring. If a failure is detected, it automatically switches service provision from the active node to the standby server (failover) to quickly restore and maintain service.

• Node Monitoring: It monitors whether servers are operational by conducting regular communication (heartbeat communication) between nodes in the HA cluster and checking for responses. If a heartbeat response is not confirmed and a node is determined to be down, a resource failover is performed.

• Resource Monitoring: LifeKeeper monitors the health of resources necessary for services, such as applications, file systems, and networks, and provides the functionality to switch them between HA cluster nodes. This resource monitoring is provided by an optional product called the “Recovery Kit.” If a failure is detected through resource monitoring, the recovery process for the affected resource is initiated.

Provides WebUI and CLI: LifeKeeper for Linux comes with the LifeKeeper Web Management Console (LKWMC) as a graphical user interface (GUI). The LKWMC allows you to build, check the status of, and manage your HA cluster through a visually intuitive interface. Operations available in the GUI can also be executed from the command-line interface (CLI), which can be used to improve work efficiency and automation

Flexible using for Physical, Virtual, and Cloud Environments: It can be used not only in on-premises physical servers and virtual environments but also in major public cloud environments such as Amazon Web Services (AWS), Microsoft Azure, Google Cloud, and Oracle Cloud Infrastructure.

Provides Data Replication: By using the optional products DataKeeper or Recovery Kit for DRBD, real-time data replication can be performed over a TCP/IP network. LifeKeeper can use the replicated disk to configure a shared file system. This ensures data consistency during a failover in an environment without physical shared storage.

LifeKeeper for Linux provides switchover protection for a range of system resources. Automatic recovery is supported for the following resource types:

• Application Suite
  JP1/Base / JP1/AJS3 Manager / JP1/AJS3 Agent
  WebSphere MQ/MQSeries
  SAP NetWeaver / SAP NetWeaver AS for ABAP / SAP S/4HANA Platform

• Networking
  IP Address
  Network Load Balance On Microsoft Azure / Google Cloud / AWS
  Amazon EC2™
  Amazon Route53™

• Database
  Db2
  Oracle
  PostgreSQL / FUJITSU Software Enterprise Postgres/ EnterpriseDB Postgres / PowerGres/ Symfoware
  MySQL
  SAP MaxDB
  SAP ASE
  SAP HANA

• File Sharing / Data Transfer
  HULFT
  NFS Server

• Shared Storage / Data Replication
  Multipath device（Device Mapper Multipath / HDLM）
  LVM
  NAS
  SCSI-3 Persistent Reservations (SCSI3）
  VMDK as Shared Storage
  Data Replication（DataKeeper / DRBD）

• Filesystem
  ext3/ ext4 / vxfs / xfs /nfs

• Web Server
  Apache Web Server