Course Outline

Update to Version 7

  • Overview of the update process from RHEL 6.x to version 7
  • Capabilities and limitations

Systemd

  • SysV vs. Upstart vs. system
  • Introduction to Systemd
  • Managing services using systemctl
  • Basic concepts: Files, Services, Targets
  • Targets vs. runlevels, service dependencies
  • Systemd and cgroups: resource constraints, CPU allocation, and other resources
  • New logging capabilities for journald
  • Troubleshooting
     

System Management with New Tools

  • Tuned
  • Chronyd vs NTP
  • System Storage Manager (SSM)
  • Data storage mechanisms: LVM / dm_cache


BTRFS and Snapper

  • Introduction to the BTRFS file system
  • Redundancy and resizing while the system is running
  • Subvolumes and snapshots
  • Managing snapshots with Snapper


Linux Container, Docker and Kubernetes

  • Introduction to Linux-Container (LXC)
  • Advantages and applications
  • Technology comparison: Docker, Rocket, and LXD
  • Installation, configuration, and administration of the Docker mechanism
  • Creating images and managing containers
  • Managing Kubernetes containers


Integration with Windows

  • Introduction to Samba 4 (S4) version 4.5
  • New features of the S4 package
  • Samba 4 as an Active Directory domain controller
  • Command-line tools, RSAT
  • Samba 4 - integration with W2Kx systems - domain, replication, group policies

SSSD and REALMD

  • Installation and configuration
  • Central authorization of user objects through SSSD
  • Integration with Active Directory
  • SSSD - overview of capabilities
  • SSSD and realmd

New Features in High Availability Management

  • New clustering mechanisms - PCS (Pacemaker Configuration System)
  • Corosync 2.x / Pacemaker as a replacement for CMAN (Pacemaker)
  • CRM and CIB and other cluster resources: LSB, systemd, and OCF
  • Primitives, Groups, Group Cloning, and Multi-Resources
  • Rules and constraints as elements of cluster configuration
  • Managing clusters using PCS and CRM-Shell
  • Comparison of PCS and CRM-Shell
  • Emergency failover

Managing Disk Space with Ceph

  • Introduction to mechanisms: Software Defined Storage Clusters
  • Cloud storage managed by Ceph
  • Structure and operation
  • CEPH 10.x 'Jewel' - integration with systemd
  • Configuring a Ceph cluster
  • Overview of Ceph-RBD and CephFS
  • Overview of mechanisms: Crushmaps, Storage Tiering / Erasure Coding
 28 Hours

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