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Overview

The Red Hat Certified Specialist in Ceph Cloud Storage exam (EX260) tests the knowledge, skills, and ability to install, configure, and manage Red Hat® Ceph Storage clusters.

By passing this exam, you become a Red Hat Certified Specialist in Ceph Cloud Storage that also counts towards earning a Red Hat Certified Architect (RHCA®).

This exam is based on Ceph 4.2.

Audience

These audiences may be interested in becoming a Red Hat Certified Specialist in Ceph Storage Administration:

- Red Hat Certified Engineers who wish to pursue Red Hat Certified Architect (RHCA)

- System administrators who want to demonstrate the ability to configure Red Hat Ceph Storage clusters

- Cloud administrators who need to configure Red Hat Ceph Storage for Red Hat OpenShift Container Platform or Red Hat OpenStack Platform

Skills Gained

In preparation

Study points for the exam

To help you prepare, these exam objectives highlight the task areas you can expect to see covered in the exam. Red Hat reserves the right to add, modify, and remove exam objectives. Such changes will be made public in advance.

You should be able to perform these tasks:

Install Red Hat Ceph Storage server

  • Install a containerized Red Hat Ceph Storage server on both physical and virtual systems
  • Utilize and modifyRed Hat Ansible Automation Platform installation files provided with Red Hat Ceph Storage to configure and install Red Hat Ceph Storage server

Work with existing Red Hat Ceph Storage server appliances

  • Be able to change a Red Hat Ceph Storage server configuration
  • Add monitor (MON) nodes and object storage device (OSD) nodes

Configure Red Hat Ceph Storage server

  • Configure a replicated storage pool
  • Store objects in storage pool
  • Store objects within a namespace within a storage pool
  • Create and configure erasure-coded pools
  • Create an erasure-coded pool profile with specified parameters
  • Upload a file to an erasure-coded pool
  • Change default settings in the Red Hat Ceph Storage configuration files
  • Manage Red Hat Ceph Storage authentication
  • Create a Red Hat Ceph Storage client with restricted read or write access to MONs, OSDs, pools, and namespaces
  • Managing OSDs Using Ceph-volume
  • Configure placement group auto-scaling

Provide block storage with RBD

  • Create a RADOS block device image
  • Obtain information about a RADOS block device image
  • Map a RADOS block device image on a server
  • Use a RADOS block device image
  • Create an RBD snapshot
  • Create an RBD clone
  • Configure RBD mirrors
  • Deploy a RBD mirror agent
  • Configure one-way RBD mirroring in pool mode
  • Configure one-way RBD mirroring in image mode
  • Check the status of the mirroring process
  • Import and export RBD images
  • Export a RADOS block device to an image file
  • Create an incremental RBD image file
  • Import a full RBD image file
  • Import a full RBD image file updated with an incremental RBD image file

Provide object storage with RADOSGW

  • Deploy a RADOS gateway
  • Deploy a multisite RADOS gateway
  • Provide object storage using the Amazon S3 API
  • Be able to create a RADOSGW user that will use the S3 client commands
  • Be able to upload and download objects to a RADOSGW using the S3 client commands
  • Export S3 objects using NFS
  • Provide object storage for Swift
  • Be able to create a RADOSGW user that will use the Swift interface
  • Be able to upload or download objects to a RADOSGW using Swift commands
  • Configure Ceph Object Gateway for In-Transit Encryption

Provide file storage with CephFS

  • Create a Red Hat Ceph Storage file system
  • Mount a Red Hat Ceph Storage file system on a client node persistently
  • Configure CephFS quotas
  • Create a CephFS snapshot

Configure a CRUSH map

  • Be able to create a bucket hierarchy in a CRUSH map that can be used in an erasure profile or a replicant rule
  • Be able to remap a PG
  • Be able to remap all PG's in a pool for an optimal redistribution

Manage and update cluster maps

  • Manage MON and OSD maps
  • Be able to monitor and change OSD storage limits for monitoring available space on an OSD

Manage a Red Hat Ceph Storage cluster

  • Determine the general status of a Red Hat Ceph Storage cluster
  • Troubleshoot problems with OSDs and MONs

Tune Red Hat Ceph Storage

  • Specify and tune key network tuning parameters for a Red Hat Ceph Storage cluster
  • Control and manage scrubbing and deep scrubbing
  • Control and manage recovery and rebalancing processes
  • Control and manage RAM utilization against I/O performance

Troubleshoot Red Hat Ceph Storage server problems

  • Troubleshoot client issues
  • Enable debugging mode on RADOS gateway
  • Optimize RBD client access using key tuning parameters

Integrate Red Hat Ceph Storage with Red Hat OpenStack Platform

  • Integrate Red Hat Ceph Storage using both Glance and Cinder
  • Modify key Glance configuration files to use Red Hat Ceph Storage
  • Configure Glance to use Red Hat Ceph Storage as a backend to store images in the Red Hat Ceph Storage cluster
  • Modify key Cinder configuration files to use Red Hat Ceph Storage
  • Configure Cinder to use Red Hat Ceph Storage RBDs for block storage backing volumes

As with all Red Hat performance-based exams, configurations must persist after reboot without intervention.

Prerequisites

  • Red Hat Certified System Administrator (RHCSA) or have comparable work experience and skills (Red Hat Certified Engineer (RHCE) would be even better)
  • Participants must have taken Cloud Storage with Red Hat Ceph Storage (CL260) or have comparable work experience
  • Review the Red Hat Certified Specialist in Ceph Cloud Storage exam objectives

Outline

Red Hat is the world's leading open source application and technology solutions provider whose core products are based on the Linux operating system.

Red Hat revolutionised Linux with Red Hat Enterprise Linux some 25 years ago. Red Hat now has a broad portfolio, including hybrid cloud infrastructure, middleware, agile integration, cloud-native application development, and management and automation solutions. With Red Hat technologies, companies can successfully adapt as business becomes more digital and interconnected.

Red Hat is now a subsidiary of IBM (since July 2019).

As authorised Resellers of Red Hat applications and certifications, CM Training has the full product portfolio of Red Hat training courses and Certification tracks including JBoss open source middleware. Those wanting an introduction to the main concepts of Red Hat Enterprise Linux will find the Red Hat System Administration 1 RH124 ideal, and a pre-requisite for obtaining the RHCSA certification track.

Other popular training courses and tracks include: JBoss Hibernate Technology (JB297), Red Hat Certified Engineer (RHCE), Red Hat Enterprise Security (RHS333), the highly practical Linux Troubleshooting Techniques and Tools (RH142) and the newly released - Red Hat Cloud Architecture (CL350) course.

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