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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