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Chapter 15. Checking and repairing a file system

WebFocus mode. Red Hat Training. A Red Hat training course is available for RHEL 8. Chapter 15. Checking and repairing a file system. RHEL provides file system administration utilities which are capable of checking and repairing file systems. These tools are often referred to as fsck tools, where fsck is a shortened version of file system check.

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URL: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/managing_file_systems/checking-and-repairing-a-file-system__managing-file-systems

Chapter 10. Managing Services with systemd

WebIt is designed to be backwards compatible with SysV init scripts, and provides a number of features such as parallel startup of system services at boot time, on-demand activation of daemons, or dependency-based service control logic. In Red Hat Enterprise Linux 7, systemd replaces Upstart as the default init system.

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Chapter 1. Setting up the Apache HTTP web server

WebA web server is a network service that serves content to a client over the web. This typically means web pages, but any other documents can be served as well. Web servers are also known as HTTP servers, as they use the hypertext transport protocol (HTTP).. The Apache HTTP Server, httpd, is an open source web server developed by the Apache Software …

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Chapter 2. Checking services using IdM Healthcheck

Web2.1. Services Healthcheck test. The Healthcheck tool includes a test to check if any IdM services is not running. This test is important because services which are not running can cause failures in other tests. Therefore, check that all services are running first. You can then check all other test results.

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Chapter 8. Monitoring application health by using health …

WebRed Hat Customer Portal - Access to 24x7 support and knowledge. Focus mode. Chapter 8. Monitoring application health by using health checks. In software systems, components can become unhealthy due to transient issues such as temporary connectivity loss, configuration errors, or problems with external dependencies.

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Chapter 4. Remote health monitoring with connected …

WebRed Hat Customer Portal - Access to 24x7 support and knowledge. Focus mode. Chapter 4. Remote health monitoring with connected clusters. 4.1. About remote health monitoring. OpenShift Container Platform collects telemetry and configuration data about your cluster and reports it to Red Hat by using the Telemeter Client and the Insights Operator.

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How to perform system health check

WebIssue. How to perform system health check ? Environment. Red Hat Enterprise Linux 5; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8

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Chapter 3. Environment health checks

WebTo verify that the cluster is up and running, connect to a master instance, and run the following: $ oc get nodes NAME STATUS AGE VERSION ocp-infra-node-1clj Ready 1h v1.6.1+5115d708d7 ocp-infra-node-86qr Ready 1h v1.6.1+5115d708d7 ocp-infra-node-g8qw Ready 1h v1.6.1+5115d708d7 ocp-master-94zd Ready 1h v1.6.1+5115d708d7 …

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Chapter 7. Monitoring the Load-balancing service

WebRed Hat Customer Portal - Access to 24x7 support and knowledge. Focus mode. Chapter 7. Monitoring the Load-balancing service. To keep load balancing operational, you can use the load-balancer management network and create, modify, and delete load-balancing health monitors. Section 7.1, “Load-balancing management network”.

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How to monitor the health of a Satellite 6 system

WebRed Hat Customer Portal - Access to 24x7 support and knowledge. Products & Services. Knowledgebase. How to monitor the health of a Satellite 6 system.

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Configuring and managing high availability clusters Red Hat …

WebThe High Availability Add-On is a clustered system that provides reliability, scalability, and availability to critical production services. A cluster is two or more computers (called nodes or members) that work together to perform a task.Clusters can be used to provide highly available services or resources.

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Chapter 11. Configuring cluster resources

Web11.3.1. Changing the default value of a resource option. As of Red Hat Enterprise Linux 8.3, you can change the default value of a resource option for all resources with the pcs resource defaults update command. The following command resets the default value of resource-stickiness to 100.

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9.2. Mounting an SMB Share

WebIn certain situations, administrators want to mount a share without entering the user name and password. To implement this, create a credentials file. For example: Procedure 9.1. Creating a Credentials File. Create a file, such as ~/smb.cred, and specify the user name, password, and domain name that file: Copy.

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Chapter 5. Troubleshooting OSDs

WebVerify your network connection. See Chapter 3, Troubleshooting Networking Issues for details.; Verify that Monitors have a quorum by using the ceph health command. If the command returns a health status (HEALTH_OK, HEALTH_WARN, or HEALTH_ERR), the Monitors are able to form a quorum.If not, address any Monitor problems first.

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Chapter 5. Troubleshooting Ceph OSDs

WebSee the Stopping and Starting Rebalancing chapter in the Red Hat Ceph Storage Troubleshooting Guide for details. When the drive appears under the /dev/ directory, make a note of the drive path. If you want to add the OSD manually, find the OSD drive and format the disk. Procedure: Adding an OSD to the Ceph Cluster.

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Chapter 31. Performing cluster maintenance

WebChapter 31. Performing cluster maintenance. In order to perform maintenance on the nodes of your cluster, you may need to stop or move the resources and services running on that cluster. Or you may need to stop the cluster software while leaving the services untouched. Pacemaker provides a variety of methods for performing system maintenance.

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Configuration Guide Red Hat JBoss Enterprise Application …

WebThis startup script uses the EAP_HOME /bin/domain.conf file, or domain.conf.bat for Windows Server, to set some default preferences, such as JVM options. You can customize the settings in this file. JBoss EAP uses the host.xml host configuration file by default, but can be started using a different one. For details on the available managed domain …

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1.2. 了解 ceph health 命令的输出

Webhealth_ok 表示集群处于健康状态。; health_warn 表示警告。 在某些情况下,ceph 状态会自动返回到 health_ok,例如当 ceph 完成重新平衡过程时。但是,如果集群处于 health_warn 状态较长,请考虑进一步排除故障。; health_err 表示需要您立即关注的更严重 …

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