ASM disk expansion and FRA addition

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 ...

Posted by nazariah on Sun, 26 Sep 2021 06:22:59 +0200

Shell Scripting Tricks - Here Document Free Interaction and Expect Automation Interaction

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 ...

Posted by PHPHorizons on Wed, 15 Sep 2021 18:38:33 +0200

2021-09-10 project name: dual vip high availability web Cluster Based on kept

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 ...

Posted by esukf on Fri, 10 Sep 2021 21:34:57 +0200

MHA High Availability Configuration and Failover

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 ...

Posted by XiaoRulez on Mon, 06 Sep 2021 18:54:03 +0200

Building of Hadoop distributed environment

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 ...

Posted by caspert_ghost on Sun, 21 Jun 2020 11:11:30 +0200

Common branch operations of Git

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 ...

Posted by TecBrat on Sat, 20 Jun 2020 05:20:03 +0200

Attachment 023.Kubernetes_v1.18.3 high availability deployment architecture II

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 ...

Posted by neroag on Tue, 16 Jun 2020 08:29:35 +0200

Docker Notes Installation &Operation&ssh

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) ...

Posted by blaster_master on Sat, 13 Jun 2020 04:27:21 +0200

Summary: encryption and security

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 ...

Posted by Tokunbo on Thu, 11 Jun 2020 08:14:01 +0200

Installation and basic configuration of Ubuntu Server in virtual machine

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 ...

Posted by xgab on Sat, 02 May 2020 01:00:12 +0200