XenServer yum gcc 通过yum 安装软件。Here’s how I did it, and the resulting RPM’s.Fuse is already included in XenServer 6.0, so all we really need to do is install the compiler.  In order to get the compiler I folowed instructions found on the Citrix XenServer forums.  Log into your XenServer and run the following:# cd /etc/yum.repos.d # mv CentOS-Base.repo CentOS-Base.repo-old # mv CentOS-Base.repo.orig CentOS-Base.repo # yum install gcc make automake

GlusterFS 3.2.6 for XenServer 6.0I’ve been wanting to test GlusterFS running natively under XenServer for quite some time. In order to do so, I needed to compile GlusterFS specifically for XenServer 6.0.  I wouldn’t do this on a production server.Here’s how I did it, and the resulting RPM’s.Compiling GlusterFSFuse is already included in XenServer 6.0, so all we really need to do is install the compiler.  In order to get the compiler I folowed instructions found on the Citrix XenServer forums.  Log into your XenServer and run the following:# cd /etc/yum.repos.d # mv CentOS-Base.repo CentOS-Base.repo-old # mv CentOS-Base.repo.orig CentOS-Base.repo # yum install gcc make automakeOnce the compiler is installed use wget to fetch the latest GlusterFS source.  Do not untar and ungzip the archive.  We’ll also install some support utilities needed for compiling.  They are not needed for installing.# wget http://download.gluster.com/pub/gluster/glusterfs/LA...

Subject:[Xen-devel] [PATCH] Allow full domain name display with xentopFrom:Charles Arnold (carn...@novell.com)Date:Dec 2, 2009 8:17:07 amList:com.xensource.lists.xen-develAttachments:xentop-show-full-name.patch - 2kAdd a '-f' option to xentop to allow the full domain name to be displayed. Thisis the original behavior which can cause the display to be unaligned. Customershave requested this because only the trailing characters of their domain namesare unique and therefore cannot be distinguished when the display is limited toa 10 character width.Signed-off-by: Charles Arnold <carn...@novell.com>diff -r 176b4c8e2c4b tools/xenstat/xentop/xentop.c--- a/tools/xenstat/xentop/xentop.c Wed Dec 02 13:45:35 2009 +0000+++ b/tools/xenstat/xentop/xentop.c Wed Dec 02 08:46:46 2009 -0700@@ -203,6 +203,7 @@ int show_networks = 0; int show_networks = 0; int show_vbds = 0; int repeat_header = 0;+int show_full_name = 0; #define PROMPT_VAL_LEN 80 char *prompt = NULL; char prompt_val[PRO...

开源虚拟化管理平台Ovirt简介和配置环境搭建一Ovirt简介Ovirt是什么？Ovirt是一个开源的虚拟化管理平台，是redhat 虚拟化管理平台RHEV的开源版本。Ovirt的构架是什么样的？Ovirt由两部分组成，客户端ovirt-node 类似于vmware esxi，是由fedaro 16订制而成。也可以在linux系统上安装vdsm服务而得到一个ovirt客户端。管理端overt-engine 类似于 vmware vcenter，但是是基于web页面的。Ovirt能做什么，不能做什么？Ovirt现在已有的功能：1. 对宿主机节点的管理，支持基于数据中心，集群的管理，比较有特色的一个功能是可以管理ilo idarc等硬件管理卡；2. 对虚拟机的管理，可以完成虚拟机的创建、快照、删除、基于模版的克隆等常见操作；3. 迁移，在线及离线迁移虚拟机；4. 高可用，当一台宿主机宕机，在另外一台宿主机上自动开启虚机；5. 宿主机、虚拟机性能查看及统计;6. 支持nfs,iscsi,fc等存储方式；7. 支持多端口的网口绑定；8. 提供一个命令行，可以完成图形界面的大部分功能；9. 活动目录集成；10. 提供python api接口，可以api编程；11. 没有授权限制；和vmware相比，目前没有的功能：1. 稳定目前较差，经常出现崩溃，连接出现问题；2. 易用性较差，设计不人性化；3. 没有...

vsphere client 上传文件：Failed to log into NFC ServerFailed to log into NFC Server：          用户通过vCenter 向某一个ESXi 4.1主机上的数据存储，上传任何文件，都会报错：“Failed to log into NFC Server”。                      但是，如果通过 vSphere Client 直接登录ESXi 4.1主机，上传文件却没有任何问题。故障分析：因此，怀疑是vCenter 的问题，而且，也有资料显示，有可能是vCenter 的问题。   vCenter连接ESXi主机时是用的主机名而不是主机的IP，所以可能是使用vSphere Client的PC对ESXi主机的域名解析有问题，最后在C:\Windows\System32\drivers\etc\hosts文件中加入ESXi主机名和其IP的对应关系，保存。最测试，上传文件，文件夹没有问题。

Compiling the Realtek RTL8111 driver on XenServerPosted on March 3, 2010 I have been using Citrix XenServer for a short while now and it has become my virtual(is/iz)ation solution of choice.Things were going great until I started to have problems after upgrading… It seems my onboard Realtek network interface (Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 02)) was not officially supported in XenServers HCL and became subjected to known driver problems.RX packets:97840 errors:0 dropped:1203654335 overruns:0 frame:0Although the network interface is still usable, as you can imagine – things are incredibly slow… especially if you rely on Remote Desktops/VNC/Terminal Services etc…The solution was to use the Citrix XenServer Driver Development Kit (DDK) to compile the kernel module for the network interface card.First we need to download the DDK VM, burn it to disk and then import it using XenCenter (this may seem an odd ...

XenServer: HowTo Convert HVM to PV (RHEL/SuSE)  In order to make paravirtual work on a linux distro 2 things need to be done, first we need to install on the guest a kernel that support Xen, second, we need to change some parameters on the host system to let it know that we want it to boot in a paravirt environment. the following procedure can be applied on a fresh installation of a HVM system but can also be applied to manually p2v a already working system.in order to install the OS in an HVM mode you will need to choose "other media", that will allow the xenserver to install the system from the a CDROMInstalling the kernel:as a condition for paravirtual to work, a kernel that support Xen hypervisor need to be install on the guest, both SLES10SP1 and RHEL5 have Xen enabled kernels as part of there virtualization packages but we when we install SLES i386 version (oppose to x86_64) we'll find more than one xen kernel. specifically on xen we w...

巧用命令更改XenServer网络模式解决网络不稳定的问题公司新买了两台戴尔R720XD服务器，每台服务器配有12个网口，用于运行虚拟化服务。虚拟化软件我安装的是Citrix XenServer 6.0版本，在使用过程中，发现运行在XenServer上的虚拟机的网络很不稳定，间歇性的相互不能访问，要么ping时丢包率很高。网络情况如此糟糕，基本上没法使用了

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Xenserver 启动 xapi 报错 :Starting xapi: ..failed to start xapi (daemon disappeared) FAILEDXenserver 服务器已经运行一年了,一直正常。今天早上远程到VM上面时,感觉很慢,不正常。查看网络与I/O读写都是正常的。这时用户也反应速度比平时慢多了。于是检查XEN系统时:启动 xapi 报错:Stopping xapi: cannot stop xapi: xapi is not running. FAILEDStarting xapi: ..failed to start xapi (daemon disappeared) FAILED怎么操作都启动不了,即使偶尔可启动,xencenter过会就自动断开。一直花了好长时间,都没找到原因。google 资料后,有提到查看 daemon.log日志文件。然后查看 信息如下:Oct 25 11:44:27 xenserver-253 xapi: [error|xenserver-253|0 thread_zero||xapi] Caught exception at toplevel: 'Sys_error("No space left on device")'Oct 25 11:44:27 xenserver-253 xapi: [ info|xenserver-253|0 thread_zero||watchdog] received exit code 2Oct 25 11:44:27 xenserver-253 xapi: [ info|xenserver-253|0 thread_zero||watchdog] Received 2 bad exits within no-retry-interval. Giving up.Oct 25 11:49:28 xenserver-253 v6d: [ info|xenserver-2...