High Availability (HA)
(ความพร้อมใช้งานสูง (HA))
Definition
High Availability (HA) (ความพร้อมใช้งานสูง (HA)) Hard Skill
High Availability (HA) refers to systems and infrastructure designed to operate continuously without failure for a long time, minimizing downtime and ensuring reliable access to services or data.
Expertise Level
Level 1
Basic
1. Understands the concept of High Availability and its importance.
2. Can identify common causes of system downtime.
3. Familiar with basic redundancy concepts such as backups and failover.
Level 2
Intermediate
1. Can implement basic High Availability setups using load balancers and failover mechanisms.
2. Able to monitor system health and respond to availability issues.
3. Understands and applies fault-tolerance techniques to reduce downtime.
Level 3
Advanced
1. Designs and manages complex HA architectures across distributed systems.
2. Implements disaster recovery plans and continuous availability strategies.
3. Performs root cause analysis for failures and optimizes systems to ensure minimal downtime.
