XenServer is the virtualization platform Citrix has built around the Xen Hypervisor.

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XenServer 6.0.2 Not enough disk space for snapshot

I need replace my primary disks (RAID 1) and have new 300GB 15K disks. Here are the details... Currently have 160GB RAID 1 15K w/ SBS 2007 (110GB VM) and 1TB 7.5K RAID 5 on the same physical server. ...
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39 views

How do I set up an infiniband network between 5 xenserver boxes? [closed]

As the title states, I am setting up a cluster with 4 blade servers each running 4 ubuntu server VMs (so 16 total vms) with another 1U server containing Openshift and Openstack each running in their ...
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15 views

How to access XenCenter?

So here is my case. Yesterday I could still access XenCenter from Citrix Receiver. Then I needed to restart, but mistakenly restarted the server. Now when I try to access the Citrix Receiver with ...
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31 views

How to use more than 3 virtual disks in Linux using CentOS and XenServer

I've attached 5 virtual disks to a Virtual Machine in Citrix XenServer. The VM has the xs-tools installed. Initially it said that it couldn't add so many disks. After I installed the xs-tools, it ...
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1answer
29 views

Over committing memory failing with out reaching half of actual RAM

I am running centos 6.4 with 2.6.32-358.6.2.el6.x86_64 which is actually running as a xen vm with ram 2 GB On this i have set cat /proc/sys/vm/overcommit_memory 2 But when i try to start my ...
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1answer
33 views

GRE Mesh to GRE Star in open virtual switch

i have 3 kvm hosts running open vswitch with many virtual machines. These vms are on two separate tenants and GRE tunnel carries private traffic between these 3 hosts. But is there a better way to ...
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1answer
153 views

Installing CentOS 6.4 on Xen 6.0: Install hangs on “Switching to clocksource hyperv_clocksource”

When I tried to install CentOS 6.4 on a Citrix XenServer 6.0, after I hit install, the installation hangs at "Switching to clocksource hyperv_clocksource" I have installed CentOS 6.0 without this ...
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1answer
27 views

Determine which guest is running on XEN: HVM or PV guest

I'm working with a Xen host which is installed XenServer from Citrix by someone. He already installed a lot of CentOS 5.2 guests on the host. I wonder how to check those guests to know they are PV ...
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1answer
30 views

throttling traffic with tc, but bandwidth is wrong

I am using these commands to set up bandwidth throttling: tc qdisc del dev eth1 root tc qdisc add dev eth1 root handle 1: cbq avpkt 1000 bandwidth 100Mbit tc class add dev eth1 parent 1: classid 1:1 ...
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1answer
51 views

XenServer - Does the Hypervisor act as a router?

I have a XenServer installed running multiple OS's testing GlusterFS. My Colleague says that the Xen Hyper-visor routes the connectivity inside the Hyper-visor and it never enters the network. That is ...
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24 views

citrix Xenserver 6.1 cannot boot normal [closed]

I install XenServer6.1 on SUPERMICRO 6017R-NTF,but when i reboot it cannot boot normally I have to use the installation CD to set #sgdisk -A 1:set:2 /dev/sda to get it to boot successful,but when ...
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1answer
53 views

100% swap and high load [closed]

Why would my swap space be 100% full if I have over 2gb of free ram? I am concerned about the high load averages for having 2 virtual cpus (1 core each). Here are the server specs, it is a virtual ...
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3answers
142 views

How to uninstall all Citrix driver from Windows Server 2008 R2 Guest if BSOD on safe mode?

I use Citrix XenServer 5.5 and on a Windows Server 2008 R2 Guest there is installed Xentools 5.5, for a year all works well. After a restart we get a BSOD with Stop Code 7B, it is a problem with the ...
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1answer
62 views

Migrating XenServer VMs from Intel to AMD servers

I need to replace my XenServer 6.1 resource pool hardware. I currently run Intel hardware and I have to move to AMD hardware (corporate politics and budget stuff, blah blah blah). I have downtime ...
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33 views

Is it possible to get the Citrix Xen version from within the guest?

(This is a follow-up to my Citrix Xen Tools question) Situation: Virtual Windows 2008 R2 64 bit Hosted at large German hoster ("1&1" aka "1und1") Server hangs, even after applying SF-suggested ...
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15 views

Optimize monothreaded application under XEN

I have an single threaded application who uses 100% cpu on virtual machine under XEN. Adding more VCPU will not help. Is it possible to configure XEN VCPU in order to have better performance with ...
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0answers
62 views

Copy an Amazon EC2 Instance to use locally

Ok, so we have a spare server I have installed Debian Wheezy on, and setup Xen on for virtual machines. It has better performance than all our ec2 instances combined, and will cost less to run (for a ...
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31 views

CPU Compatibility for Xen Cloud Platform

I have pool with current configuration of several servers: CPU: Intel(R) Xeon(R) CPU E5630 @ 2.53GHz RAM: 32Gb DDR3 Can I add the following server to pool if i'd like to keep all ...
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1answer
28 views

Can one set up REMOTE USER ACCESS to XenDesktop & XenServer Environment?

I'm being told by a network consultant that we cannot set up remote access, "XenDesktop has no built-in remote access solution, neither does XenServer." Is this true? We have a small business with ...
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1answer
55 views

Xenserver: Pass parameters during VM build

On XenServer is there any way to read VM metadata (Custom fields, Tags, VM Name) from inside the VM using Linux (CentOS 5.8) ? Basically what I want to do is: Create new VM using xe vm-install ...
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41 views

What RAID policies should be used for a XenServer host?

I have a server with a PERC6/i card and a RAID-10 array running XenServer 6.1 with 6x VMs, one of which is SBS 2008 and the rest are a mix of file server, video-on-demand and SQL database server. The ...
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2answers
265 views

XenServer disk space maxed out but no idea why?

My XenServer 6.1 installation reports the following for the local SR: 3711.6 GB used of 3717 GB total (1491 GB allocated) There are no snapshots visible under the "snapshots" tab of each VM and the ...
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2answers
91 views

Strange Ubuntu boot up warning

I have a VM (Xen based), I can boot up the machine but there are some warning during the boot up. Are they normal? If not, how to solved? md: Scanned 0 and added 0 devices. ...
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1answer
40 views

Split management network from data in Xen Server

I'm working on configuring our existing pool of four hypervisors running XenServer 6.1 to use a separate management network. Currently the setup is a single link with a public address over which all ...
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2answers
208 views

Web UI to Xen Cloud platform?

I am an intern at a small company. I have only studied linux for one month so I have no great knowledge of coding and very little knowledge of programming. I have been assigned to build a server ...
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3answers
71 views

Xen memory management on small server

I am currently running VMware vSphere 5 on a server I use for various projects. Mainly I use it for honing my skills with administration and running a few game servers. Recently I was considering a ...
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80 views

XenServer additional Local Storage : LVHD or Ext3

I've searched for a clear comparison between LVM (LVHD)-backed Local Storage and Ext3-backed Local Storage on XenServer, but to no avail. According to http://innitec.wordpress.com/category/xenserver/ ...
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1answer
283 views

Can I safely uninstall “Citrix Tools for Virtual Machines”?

Having several virtual servers with Windows 2008 R2 at our web hoster (Germany's "1&1", they seem to use Citrix Xen), I have every now and then some servers that hang (RDP login screen hangs ...
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1answer
68 views

HP Proliant DL360 G3: What version of XenServer is supported?

I've spent some time looking, and haven't been able to find a decent HCL for the current and past versions of XenServer. I have 3 HP Proliant DL360 G3's that I want to use for virtualization. They ...
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1answer
175 views

How do you tell if the nvidia driver supports our GRID K2 card? [closed]

How do you know if the NVIDIA driver actually supports the card you have? I'm getting an (EE) no devices detected in Xorg.0.log and not sure if it is related to the device driver not supporting the ...
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1answer
67 views

Xenserver an local Storage (Xenserver Broken) [closed]

my Xenserver 6.1 was broken and i was using local storage on this server. now i want to recover the local storage with the usual adding methods i delete the whole disk, but i want to keep the datea ...
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33 views

Citrix XenServer 5.6 SP1 crash: kernel Oops

every 30-40 days my XenServer crashs. This is printed on console: Message from syslogd@ at Tue Apr 9 21:30:54 2013 ... xenserver1 kernel: Oops: 0011 [#1] SMP Message from syslogd@ at Tue Apr 9 ...
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16 views

understanding Code Segment Register

I had two consecutive server failures when running xen 3.4.2/XCP 1.1 and on both crash logs it is showing RIP: e008:[<ffff828c8010e310>] on every physical CPU. I am not expert in crash ...
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69 views

How to upgrade XCP 1.6 beta to latest 1.6 release

I am running XCP 1.6.05 Beta on a couple systems and would like to know the recommended procedure to upgrade to the 1.6 release. Here is a glimpse into the present packages installed for xen and xcp. ...
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1answer
155 views

converting a Virtualbox to Xenserver

How can I use my virtualbox image in a Xenserver 6 or above? I mean is there a way to import the image to Xenserver? Secondly is there anyway we can import vmware image to Xenserver without using ...
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1answer
132 views

export XenServer snapshot as file via console

I have created a snapshot of a Citrix XenServer virtual machine using XenCenter, and now I would like to save this snapshot as an *.xva file, just as if I right-click on the snapshot icon in XenCenter ...
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2answers
122 views

configure iptables to allow in/out bound connections from the WAN (web) and only a couple pcs on the LAN while blocking anything else

I have a Xen server with several Virtual Machines on it sitting along side normal pcs on my LAN. The VMs host content bound for web access. Httpd is one of them so lets use that as an example. I ...
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1answer
86 views

Xen XCP: Route failover IP to Guest

I have two hosts, which I installed XCP 1.6 on. The machines are hosted at Hetzner. Each host currently has a public IP and an additional IP assigned. There is a guest on each of the hosts which ...
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79 views

XEN How to mount ISO on DVD drive to restore broken VM

I have this problem. I have a VM broken that doesn't start anymore. I have a rescue CD iso on the Local Storage of the XenServer. How should I do to mount the rescue cd ISO and try to restore my ...
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2answers
415 views

To SSD or not to SSD? (Virtualization - Xenserver) [closed]

I have several Xenserver boxes running (very well). Most of ours are setup with a RAID1 with two mechanical 7200rpm enterprise sata drives, or RAID10 with 4 7200 enterprise sata drives. The sata ...
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163 views

XCP with XenCenter transfer-vm without DHCP

I'm using Xen Cloud Platform (XCP) with the XenCenter and have installed the xenserver transfer vm as described in the xen wiki and a citrix blog. The problem is that the import still fails. It's ...
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1answer
123 views

Xencenter Console is very slow

I am using xencenter to administer xenserver 6.2. Xencenter VM console is very slow. I am using vpn connection. I don't want to setup ports. So, what can I do?
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1answer
243 views

Boot Clonezilla with XenServer VM

I'm currently trying to move a RHEL based server to Citrix XenServer (5.6) VM. My plan was to use Clonezilla LIVE CD, which i have had good suceess with to clone physical to physical before. So i ...
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272 views

How to import XenServer's ovf/ova/xva format to KVM?

Now I'm considering migrate from Xen to KVM. I exported some exist virtual machines from Xen in the formats ovf and xva. How could I import them into KVM? As there're only a few of virtual machines, ...
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1answer
85 views

How do I change a xen vm storage from hda to sda?

I am trying to import an ovf appliance created for VMWare into our Xen infrastructure. The imported image uses hda rather than sda, and the appliance has some hard references that appear to be ...
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139 views

Booting Ubuntu rescue CD from Xenserver

I have an Ubuntu guest running in Xenserver 6.0. I tried upgrading it to 12.10 but it just hung after "deleting unused packages." Tried rebooting, but all I saw was a blank console and high CPU ...
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1answer
196 views

Xenserver guest OS network configuration

I am presently able to ping the guest OS' (for example, I can tell because they stop pinging when the guest VMs are powered down or the network is being restarted, etc.), but none of them can ping out ...
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2answers
529 views

How to connect to xencenter console remotely?

I need to administrate xenserver remotely. I have redirected 443 port in my router and now I can administrate XenServer. But I need to create VMs, how can I use XenCenter console to see VM desktop ...
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1answer
128 views

XenServer - Recovering VM

After googling all day I have had no luck, so I hope someone on here can assist me. I setup my XenServer, created a ubuntu VM, then placed my itunes library (300gb+) onto the system. After this, I ...
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2answers
379 views

How can I create a new VM pointing to something other than a CD/DVD

I am new to XenServer and want to experiment with adding new virtual machines. I am running XenServer 6.1 and XenCenter. I have successfully created a new VM by burning a DVD and during the creation ...

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