veeam high availability

Exchange server2013 Series 7: high availability deployment of Client Access Servers Du Fei In the previous article, we introduced the High Availability Technology of client access servers. From this article, we will look at a detailed high

1. Experimental planning:mytest1:192.169.201.7mytest2:192.169.201.8vip:192.169.201.100Server for NFS mytest3:192.168.201.92. Set the hostname for each node.Write the following information to the/etc/hosts file for each node:Mytest1 192.169.201.7Mytest2 192.169.201.8Write the host names of each node to the/etc/sysconfig/network file.3. Set the information relationship for each node:Execute on Mytest1:Ssh-keygen-t Dsa-p "-F ~/.SSH/ID_DSASsh-copy-id-i ~/.ssh/id_dsa.pub [email protected]Execute on M

First, HAProxy 1.haproxy Introduction HAProxy is a free, fast, and reliable solution that provides high availability, load balancing, and proxy software based on TCP (layer fourth) and HTTP (layer seventh) applications that support virtual hosting. Haproxy is a free and open source software written in C language Haproxy is especially useful for Web sites that are heavily loaded, and often requ

MHA IntroductionMHA is a MySQL, a Japanese MySQL Daniel written in Perl failover scheme to ensure the high availability of the database system. During downtime (usually within 10-30 seconds), complete failover, deploy MHA, avoid master-slave consistency issues, and save on the cost of purchasing new servers, Does not affect server performance, easy to install, and does not change existing deployments.also s

First, Introduction Whether keepalived or heartbeat is highly available, its high availability is all about the high availability of server scripting, not the service perspective. In other words, if the server down machine or network failure, high

Tags: admin replace log-bin more than 1.7 factory monitor MySQL configuration EPOOne, mysql-mmm (master-master Replication Manager fo MySQL) MMM overview Dual-master failover and routine management procedures Consists of multiple MySQL master servers and multiple MySQL slave servers MMM is developed using the Perl language and is primarily used to monitor and manage MySQL Master-master (dual master) replication Its internal additional tool scripts can also implement read loa

Background of the "MySQL" "High Availability" purge_relay_logs tool:? In the MHA high-availability architecture to switch the steps, mainly by the individual instances of the relay log file compared to the old and new, select the latest relay log for the data in the group to append, as far as possible to ensure the sec

keepalived configuration file on the 192.168.1.126 (red arrow is required to change) Create a detect MySQL script Start keepalived 5. View Login 192.168.1.163 View VIP Login 192.168.1.126 view, no VIP 6. Test MySQL for high availability Create a user on any MySQL computer for testing Turn off the primary master sync feature Create a database on 192.168.1.63 with the user you just created View the d

Percona XtraDB Cluster (hereinafter referred to as PXC) is an open source MySQL high-availability solution. It integrates Percona server and Percona xtrabackup with the Galera library to enable synchronous multi-master replication. The topology of each node is as follows:　　　　, PXC each node's status is equal, each node in the cluster can be used for reading and writing, as long as the number of available no

Tags: row manager repos Issues syn ITER SCH wal etcCentos7 under mysql5.7-mmm High availability cluster MMM introductionMMM (Master-master Replication Manager for MySQL, MySQL primary master replication Manager)is a set of scripts that support dual-master failover and dual-master daily management. MMM is developed using the Perl language, which is mainly used to monitor and manage MYSQL Master-master (dual

1. Working logic diagram 650) this.width=650; "Src=" http://192.168.1.195:8090/download/attachments/524471/22542025026.jpeg?version=1 Modificationdate=1446626151000api=v2 "/> 2, mysql-mmm advantages and disadvantages Advantages: High availability, scalability, automatic failover, for master synchronization, at the same time only provide a database write operation, to ensure the consistency of the data. Cons

(provided that the mysqld and keepalived processes are turned on)#mysql-H192.168.17.166-UAARON8219-PZLM3. Close one end of the network card, test the whereabouts of the VIP, and whether the VIP can be properly logged in#Ifdown eth0#ip a show#mysql-H192.168.17.166-UAARON8219-PZLM4. Restart one end (host simulation host failure), test the whereabouts of the VIP, and whether the VIP can be properly logged in#Init 6#ip a show#mysql-H192.168.17.166-UAARON8219-PZLM5. Kill the keepalived process direc

Ansible automatic operation and Maintenance tool configuration Ngnix front end to back-end real machine, and set keepalived high availability, on the back end a real host configuration httpd,mysql,php-fpm; set memcached cache server on this real host (Because of my Computer configuration problem, can not open so many virtual machines, so simply build a bit)IP configuration:Directory1 (MASTER):eno16777736:17

Before talking about the high availability of SQLServer, we should first talk about the high availability of a single instance. In the high availability of a single instance, the high

Microsoft in Exchange high-availability scenarios with the introduction of Exchange 2013, the DAG scenario is becoming more and more mature. Exchange's highly available scenarios vary greatly in the exchange2003 to Exchange 20,103 editions, in the Exchange 2003 era, when Microsoft introduced shared storage, combined with the OS failover cluster, launched a host-level hi