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Course Outline

  • Introduction to DRBD
    • Underlying principles and operational theory
    • Installation procedures
    • Available replication modes and their specific use cases
    • Setting up a two-node, single-primary cluster
    • Performing manual failovers
    • Strategies for recovering from split-brain scenarios
  • Corosync
    • Installation and initial setup
  • Pacemaker
    • Operational theory
    • Installation
    • The function and importance of STONITH devices
    • Configuring resource agents
      • DRBD
      • Mounted file systems
      • Virtual IP addresses
      • LSB and systemd services
      • Implementing groups, ordering, and colocation constraints
  • DRBD Operating in Dual-Primary Mode
    • Integration with OCFS2
  • Advanced Module: Booting from a Root File System on DRBD

Requirements

  • A solid grasp of Linux block devices, file systems, and TCP/IP networking
  • For the "Root File System on DRBD" module: an in-depth understanding of the Linux boot process (including initramfs, init, services, and runlevels)
 7 Hours

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