xenserver ha

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Xenserver 7 implement intranet sharing and port mapping by configuring firewall iptables

Because the company in the computer room hosting server IP is not enough, but also for security considerations, so that a number of virtual nodes can not directly access the Internet, so I xenserver physical nodes through the use of iptables NAT function made a simple implementation [Root@xenserver-cukxsegi ~]# sysctl net.ipv4.ip_forward=1 #开启转发[Root@xenserver-c

Xenserver command to export and import vm nodes

There is a Xenserver node in the data center. The RAID 5 made of six disks has an alarm today. It is estimated that the disk data is inconsistent. At that time, I forgot to prepare a hot spare disk. So before restarting, back up the node and restart it to verify the disk.First, check which nodes are available.[Root @ xenserver-DS-TestServer04 mnt] # xe vm-listUuid (RO): 0555a7e5-eba4-aaae-2caf-bbb4b53724aaN

Simple understanding of HA and ha cluster removal

nodes, provide more than the dual-machine hot standby, higher functionality, to meet the changing needs of users.three ways to implement HA :(1) Master-SlaveUnder normal circumstances, the work is undertaken by the primary node, only when the primary node fails, the server will automatically switch to the slave node, the node will start the service, usually do not start the service, the primary server must have a cluster IP(vip), Services, Public sto

An issue to be aware of when Hadoop goes from non-ha to Namenode ha

Configure Core-site.xmlConfigure Hdfs-site.xmlConfigure Mapred-site.xmlConfigure Yarn-site.xmlSend to other nodesModify RM 2.. N the node information aboveFormat ZK HDFs Zkfc-formatzkInitialize Journalnode:HDFs namenode-initializesharededitsYou need to start the process of each Journalnode node before the operation.Otherwise, formatting is unsuccessful.No reformatting of data is required to turn from non-ha to ha

XenServer Network stack Mode bridge

Instead of developing a dedicated network stack pattern on the web itself, XenServer uses existing network stack patterns for integration. There are two main types of XenServer network stacks: Bridge and Openvswitch mode. Bridge is a Linux-system technology, and Openvswitch is an open-source Virtual Switch software. In this article I would like to talk about bridge stack mode.Bridge Chinese is called the Br

Codis proxy layer HA, codisproxy layer HA

Codis proxy layer HA, codisproxy layer HA For Java users, you can use the modified Jedis ------- Jodis to implement HA on the proxy layer. It monitors the registration information on zk to obtain the list of currently available proxies in real time, which can ensure high availability or achieve Load Balancing by requesting all proxies in turn. The jodis address i

XenServer: Using Xencenter to open a VPS (multi-image full version)

When the iron is hot, let's play xenserver. Yesterday Zhao Jong with the computer room provided KVM to the server installed XenServer, today we come to play more interesting: open chicken. After installing the XenServer, visit our server IP, you can see the Xencenter two download links, directly download the MSI to install (this is installed on your computer, the

The special-xenserver of the Three Musketeers in virtualization (i)

Architecture ChapterBefore we introduced the server virtualization Three Musketeers in VMware and Hyper-V, today we proceed with the rest of the content of Citrix's XenServer.The XenServer uses an open source Xen hypervisor that deploys a very broad and powerful system. Xen is an open industry standard virtualization technology that is the "engine" for many companies ' commercial virtualization products, including Citrix, Symantec, Oracle, Red Hat, No

XenServer Tools Troubleshooting steps

Eject any loaded DVD media, like Xs-tools.iso, so the virtual DVD drive is empty. Snapshot VM before starting so you can roll back in case of problems. Added Registry Key so the MSIServer (handles MSI Install/uninstall) can run in Safe Mode using command:REG ADD "Hklm\system\currentcontrolset\control\safeboot\minimal\msiserver"/ve/t reg_sz/f/d "Service" Run msconfig and set computer to boot on Safe Mode with the Minimal option. Reboot computer. When the Windows starts in Safe Mode

Establish ISO library for XenServer

establish ISO library for XenServergenerally we install on the server XenServer system, you need to XenServer To build the virtual machine on the ISO mirroring. So the question is, how to build an ISO Image Library on XenServer. Take a look at the following decomposition:1.creating a logical volumebefore you create it, create a logical volume at the size you wan

Example of changing the hostname of Xenserver

In order to standardize the name of Xenserver, we checked this[Root @ xenserver-xutcnqdq ~] # Xe host-listUuid (RO): 05673022-2e69-4cfc-848a-a06ac14de.pdfName-label (RW): xenserver-xutcnqdqName-description (RW): Default install[Root @ xenserver-xutcnqdq ~] # Xe host-set-hostname-live host-uuid = 05673022-2e69-4cfc-848a

Ah ha-Ha, the latest winner of the championship tricks seek death

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Vshpere cloud operating system 6 install virtual machines In Ha and perform ha Testing

Vshpere cloud operating system 6 install virtual machines In Ha and perform ha Testing Click Create VM Default next step Enter the system name Select the operating system type After clicking finish, insert the disc to install 2003. The installation process is not described in detail. After the installation is complete, configure the IP address to 192.168.0.249. Check that the VM is current

Use Python to grab "fried egg net" above the beautiful pictures, scale is very big Oh! Ha ha

directlyif __name__=='__main__': URL='http://jandan.net/ooxx/'Page_num=get_pagenum (URL) forIinchRange (10):#grabbed 10 pictures of beauty on the pagePage_url = URL +'page-'+str (Page_num) +'#comments'get_img (page_url) page_num= Int (page_num)-1#The following is the time to write the regular and easy to see so pasted over the connection##http://jandan.net/ooxx/page-143#comments##http://wx3.sinaimg.cn/mw600/661eb95cly1fgioxk7mk3j20xc1e01f1.jpg#The results are as follows:Because of time, I only

Installing XenServer on VMware vSphere 5.5 virtual machines 6.2

With the full open source of XenServer 6.2 in June 2013, enthusiasts of virtualization technology should be an ecstatic news! Citrix and also established the xenserver.org developer community. We can now download all xenserver source code, develop documentation, etc. on this website. XENSERVER 6.2 installation CD ISO and xencenter windows the installation pack

Installing XenServer on VMware vSphere 5.5 virtual machines 6.2

With the full open source of XenServer 6.2 in June 2013, enthusiasts of virtualization technology should be an ecstatic news! Citrix and also established the xenserver.org developer community. We can now download all xenserver source code, develop documentation, etc. on this website.XenServer 6.2 's installation CD ISO and Xencenter's Windows installer can also be downloaded from the community website: http

Linux XenServer 6.2 installation illustrated tutorial _xenserver

Citrix Xenserver, Si Jie Linux based virtualization server. Citrix XenServer is a comprehensive and manageable server virtualization platform based on powerful Xen Hypervisor programs. Xen technology is widely seen as the fastest and most secure virtualization software in the industry. XenServer is designed to efficiently manage Windows (R) and Linux (r) virtual

XenServer 6.5 Combat Series 12: License Management

This section will share the license of how to assign XenServer hosts, note that the activation of Citrix products requires the deployment of license server, so before reading this blog, make sure that license Ser is deployed Ver and the license certificate for importing XenServer. 1. Pre-conditions1.1 Before assigning licenses to XenServer hosts, you must deploy

Install vmtools on xenserver Virtual Machine

Labels: Install vmtools on xenserver Virtual Machine Recently, Citrix was deployed in the test environment. Due to resource shortage, a virtual machine was deployed on the HP blade server installed with esxi5.1 and xenserver was installed, however, after the installation, we found that the xenserver virtual machine did not install the vmtools tool. After studying

The deployment of Citrix XenServer

Citrix Xenserver, Si-jie based on Liunx virtualization server. Citrix XenServer is a comprehensive and manageable server virtualization platform based on powerful Xen Hypervisor programs. Xen technology is widely seen as the fastest and most secure virtualization software in the industry. XenServer is designed to efficiently manage Windows (R) and Linux (r) virtu

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