Highly Available Services with DRBD and Pacemaker Training Course

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Duration Duration

7 hours (usually 1 day including breaks)

Requirements Requirements

  • General understanding of Linux block devices, filesystems, and TCP/IP networking
  • For the "Root filesystem on DRBD" topic: perfect understanding how a Linux system boots (initramfs, init, services, runlevels, ...)

Overview Overview

The primary objective of this practical course is to introduce the Linux high-availability stack (Pacemaker, DRBD) to system administrators. During the training, each participant will build a two-machine cluster that offers a simple highly-available service (such as PostgreSQL or NFS) on a virtual IP address. Also, uses of DRBD not related to high availability are considered.

Course Outline Course Outline

  • DRBD basics
    • Theory of operation
    • Installation
    • Supported replication modes and their use cases
    • Creation of a two-node single-primary cluster
    • Manual failover
    • Recovering from split-brain
  • Corosync
    • Installation and initial configuration
  • Pacemaker
    • Theory of operation
    • Installation
    • Role of STONITH devices
    • Configuration of resource agents
      • DRBD
      • Mounted filesystem
      • Virtual IP address
      • LSB and systemd services
      • Groups, ordering and colocation constraints
  • DRBD in Dual-Primary mode
    • Use with OCFS2
  • Advanced topic: root filesystem on DRBD

Course Code

linuxha

Bookings, Prices and Enquiries

Guaranteed to run even with a single delegate!
Public Classroom Public Classroom
Participants from multiple organisations. Topics usually cannot be customised
From $3600
Request
Private Classroom Private Classroom
Participants are from one organisation only. No external participants are allowed. Usually customised to a specific group, course topics are agreed between the client and the trainer.
Private Remote Private Remote
The instructor and the participants are in two different physical locations and communicate via the Internet
From $1850
Request quote

The more delegates, the greater the savings per delegate. Table reflects price per delegate and is used for illustration purposes only, actual prices may differ.

Number of Delegates Public Classroom Private Remote
1 $3600 $1850
2 $2125 $1200
3 $1633 $983
4 $1388 $875
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