Examination: Enterprise Linux High Availability Master
Examination Code: ICT-LHA-1
The letters in bold are the domain ID.
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| A. High Availability and Fault-Tolerant |
| A1. High Availability Concept and Design |
A1.1 Know how to determine the user availability requirements
A1.2 Know the Availability Levels and Measurements
A1.3 Know the common failover topology
A1.4 Understand the important of Resource Fencing
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| A2. Failover with Heartbeat |
A2.1 Understand the features and limitation of Heartbeat 1.x and Heartbeat 2.x
A2.2 Know how to setup HA Cluster with Heartbeat 1.x
A2.3 Know how to setup HA Cluster with Heartbeat 2.x
A2.4 Know how to implement resource fencing with STONITH
A2.5 Know how to write Heartbeat Resource Agent
A2.6 Know how to troubleshoot and maintain Heartbeat cluster |
| A3. Service Monitoring with Mon |
A3.1 Understand the purpose and features of Mon.
A3.2 Know how to setup Mon
A3.3 How to write Mon alert script |
| A4. Failover with Keepalived |
A4.1 Understand VRRP and know what it suit for
A4.2 Know how to setup and configure Keepalived |
| A5. Storage Replication with DRBD |
A5.1 Know some technologies of real time mirroring (e.g. RAID 1 on network block device)
A5.2 Know how to patch Linux kernel to support DRBD
A5.3 Know how to setup and configure DRBD
A5.4 Know how to provide HA Storage with DRBD and Heartbeat |
| B. Server Load Balancing |
| B1. Server Load Balancing Concept and Design |
B1.1 Know the concept of Server Load Balancing
B1.2 Understand the basic network topology of Server Load Balancing |
| B2. Linux Virtual Server Setup |
B2.1 Understand the purpose of Linux Virtual Server
B2.2 Understand the 3 IP Load Balancing Techniques (i.e. Virtual Server via NAT, IP Tunnelling and Direct Routing)
B2.3 Know how to setup Virtual Server via NAT (LVS-NAT)
B2.4 Know how to setup Virtual Server via IP Tunnelling (LVS-Tun)
B2.5 Know how to setup Virtual Server via Direct Routing (LVS-DR)
B2.6 Understand and know how to use scheduling algorithm provided by LVS |
| B3. HA Linux Virtual Server |
B3.1 Know how to monitor LVS service with Mon
B3.2 Know how to setup HA LVS with Ldirectord and Heartbeat
B3.3 Know how to setup HA LVS with Keepalived |
| B4. Mass Deploying with SystemImager |
B4.1 Know how to deploy cluster with SystemImager |
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