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Background description System a is a dual node RAC. System a is short of disk space, so apply to Party A and add 1T disk to system a; System B is a single instance. System B has the remaining 500G disk and 800G disk DATA disk space. The archive storage location is in the DARA disk. The archive space size is set to 800G. Apply to Party A. s ...

Preface In a real production environment, writing shell scripts will inevitably encounter some interactive interfaces, such as raid s and extensions, which require interaction, so we need to use the following non-interactive operations to achieve true shell script automation. 1. Here Document exempt from interaction 1. Overview Provide ...

Project Name: dual vip high availability web Cluster Based on keepalived Architecture diagram Project environment: CentOS 8.2 (8 sets, 1-core 1G), ansible 2.9.17, keepalived 2.0.10, Nginx 1.19.7, NFS Project Description:          Build a Web Cluster project with high concurrency and high a ...

Catalog 1. Understanding MHA 1. Overview of MHA 2. Composition of MHA 3. Characteristics of MHA 4.MHA cluster architecture diagram  2. Build MySQL MHA 1. Construction of MHA 2. Fault simulation  Algorithms for failover alternate primary libraries: Failure Repair Steps: 1. Understanding MHA 1. Overview of MHA MHA (Mast ...

This note is written by myself with reference to Lin Ziyu's teaching documents. Please refer to the database Laboratory of Xiamen University for details Personal built hadoop platform practical environment: Ubuntu 14.04 64 bit * 3, JDK1.8, Hadoop 2.6.5 (apache) 1, Hadoop preparation before instal ...

catalog Branch Management 1. Create and merge branches 1.2switch 2. conflict resolution 3. Branch management strategy 4. Branch strategy 5.Bug branch 6.Feature branch 7. Multi person cooperation 8. Push branch 9. Grab branch 10.Rebase Branch Management The branch is the parallel universe in sc ...

Attachment 024.Kubernetes_v1.18.3 high availability deployment architecture II Introduction to kubeadm kubeadm overview Refer to attachment 003.Kubeadm deployment Kubernetes. kubeadm function Refer to attachment 003.Kubeadm deployment Kubernetes. Description of the scheme Kubernetes version 1.18.3 is deployed by kubeadm; etcd adopts mixed mo ...

1. Installation 1) Install dependent packages sudo yum install -y yum-utils device-mapper-persistent-data lvm2  2) Set Ali Cloud Mirror Source sudo yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo  3) Install Docker-CE sudo yum install docker-ce 4) ...

Objectives of information security protection Confidentiality Integrity Usability Controllability Non repudiationSafety protection link Physical security: environment of various equipment / hosts and machine rooms System security: the operating system of a host or device Application Security: various ne ...

Installation and basic configuration of Ubuntu Server in virtual machine Install Ubuntu Server 16 The virtual machine uses VMware workstation. Create a new virtual machine. Next, install ubuntu. There is an error. The language was changed to English, no error was reported, and the installation was successful. configure network In order to faci ...