SureHA is a high-availability cluster software that can build a highly reliable dual-machine system to protect data and services. SureHA supports master-slave and peer modes. In master-slave mode, one server is designated as the master server for critical operations, and the other server as a hot backup server. In peer mode, all servers are designated as the master server for their own critical operations. The two servers back each other up.
SureHA is Lenovo's high‑availability cluster management solution that protects data and services by providing automatic failover between two servers. The manual explains the software’s concepts, supported services and how it maintains continuous operation.
The document details the required hardware components, network options, and the software architecture, then walks through installation, environment setup, core process startup, and fault‑recovery procedures. It also includes templates for custom monitoring agents. This manual is written in Chinese.
| Supported Networks | TCP/IP, ATM, Ethernet, FastEthernet, FDDI |
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Run the hamond and hasvrd executables; they are started automatically at boot via /etc/rc3.d/S999roseha, or can be launched manually from /opt/sureha/bin.
Add the line "HAHOME=/opt/sureha export HAHOME" to the system profile (e.g., .profile or .dtprofile) and re‑login.
The template monitors the $HAHOME/tmp/agent file; if the file exists it sends a normal heartbeat, otherwise it signals an error to SureHA.