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Course Outline

  • DRBD Fundamentals
    • Underlying theory of operation.
    • Installation procedures.
    • Available replication modes and their respective use cases.
    • Establishing a two-node, single-primary cluster.
    • Performing manual failovers.
    • Resolving split-brain scenarios.
  • Corosync
    • Installation and initial configuration.
  • Pacemaker
    • Understanding the theory of operation.
    • Installation steps.
    • The function of STONITH devices.
    • Configuring resource agents:
      • DRBD.
      • Mounted filesystems.
      • Virtual IP addresses.
      • LSB and systemd services.
      • Implementing groups, ordering, and colocation constraints.
  • DRBD in Dual-Primary Mode
    • Integration with OCFS2.
  • Advanced Topic: Configuring a Root Filesystem on DRBD.

Requirements

  • A solid grasp of Linux block devices, filesystems, and TCP/IP networking.
  • For the "Root filesystem on DRBD" section: A thorough understanding of the Linux boot process (including initramfs, init, services, and runlevels).
 7 Hours

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