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

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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
408 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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2answers
2k 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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1answer
734 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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4answers
3k 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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0answers
643 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
472 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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1answer
1k 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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3answers
13k 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
861 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
3k 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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2answers
1k views

XenServer 6.0.2 and Cisco 3550 vlan configuration

I am running a couple of xenserver 6.0.2 hosts with multiple vm's on them. All the xen hosts have 4 physical network ports connecting to the cisco. Each port is untagged in xen but is tagged to a vlan ...
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0answers
631 views

Windows 2008 R2 migration to XenServer 6.1

I'm currently testing the migration process of a Windows 2008 server (R2) to Xenserver. Currently I have a windows 2008 R2 server running ( Domain controller, dns, ... ) and I want to migrate this to ...
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1answer
2k views

How to migrate from Xen to XCP?

I am running a Ubuntu Server with Xen 4.1 installed. All VMs are running on that server with one or more virtual disks stored in qcow2 format. These VMs are managed by 'xl' toolstack. One VM is ...
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1answer
1k views

How do I create a local HTTP mirror for XenServer installation using IIS?

We are planning to perform an Rolling Pool Upgrade using the "automatic method" described in the Citrix XenServer ® 6.1.0 Installation Guide (at ...
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1answer
1k views

xen Dom0 network setup on ubuntu 12.04.1 LTS

I read a lot of tutorials (or at least try to be) but none is able to explain well how to configure networks for xen host. my Dom0 has two interfaces eth0 (real interfaces) and virbr0 (I guess was ...
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1answer
515 views

Live migrate possible among different version XenServers in one pool, with shared storage

We have a pool of 3 XenServers, with version 5.6 SP2, which needed to be migrated to latest version (6.1). the upgrade of pool master is complete and now the pool has one server with version 6.1 and ...
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0answers
235 views

Cannot upgrade xenserver,pool master changes automatically to other server

I need to upgrade my XenServer pool of servers from 5.6 to 6.1. The problem i am facing is that when i shutdown pol master to boot it from CD, then it other member in the pool become the pool master ...
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2answers
217 views

No PV option for xapi?

I have installed xcp-xapi on my Dom0 server. When I tried to create a VM, I found there are no options for me to create a PV VM based on existed kernel, initrd image and qcow2 disk image! Anyone can ...
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1answer
365 views

XCP switch port locking not working

I am experimenting with XCP/XenServer's "switch port locking" features that allow the hypervisor to limit the IP addresses a virtual machine can use. However, I cannot seem to get it to work as ...
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2answers
1k views

Xenserver 6.1 and ZFS file server

I want a paravirtualized ZFS server for Xenserver 6.1 supporting a 6+ TB zpool. The old templates for Xenserver 6.0.2 and FreeBSD 9 don't work. I have been unsuccessful ("Not a Xen-ELF image...") at ...
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0answers
1k views

Import Xen Server VHD

I am trialing using a distributed file system as the backend storage for my Xen Servers. I have set up the DFS (distributed file system) (using CentOS and GlusterFS) and everything is working ...
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1answer
543 views

Restore data from overwritten LVM

I lost all of my data (8 TB) which I collected over the past few years yesterday because I made some seriuos mistakes during the remounting of my LVM. I run a XenServer5.6 installation with additional ...
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3answers
2k views

Cannot to change my root password on Xenserver

I try to change my root password on my Xenserver 6.0. I follow these steps: enter boot: menu.c32 selecet xe-serial and press tab add "single" before the 2nd triple hyphens and i press enter. I have ...
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0answers
3k views

Windows Server 2008 R2 DC can't ping to other computers except other DC

I have been trying to troubleshoot this problem since 20 hours ago, and still can't find a solution. I brought down (orderly shutdown) a Domain Controller yesterday. No problem at all connecting to ...
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1answer
450 views

Generalized strategy for file server virtualization in Xenserver [closed]

I'm not shopping as much as I'm looking for some guidance on good idea / bad idea strategies. I'm sure I'm not in the "best practices" budget range. Currently, I have 3 dell poweredges running ...
1
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1answer
279 views

XenServer and Quiesced snapshots

At work we use XenServer to administrate all the VM's. Now I wrote a script which enables Linux machines quiesced support. The script works absolutely fine. It activates if someone triggers a quiesced ...
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0answers
586 views

Access All VLANS over XenServer Interface

For my current setup, I have a physical NIC on a XenServer machine that receives traffic tagged with various VLAN IDs. I have a virtual machine that is running Vyatta that needs to be able to access ...
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1answer
117 views

How do you initialize networking on a new Xen guest VM?

We have a Citrix XenServer setup, and while I personally lean more towards Dev than Ops, I've got an issue that's been bugging me. When you provision a new (Linux/Ubuntu) guest, how do you get it to ...
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2answers
497 views

Clustered file systems as XenServer storage

I want to use shared storage for a XenServer environment with 4 host servers which are running various VMs under XenServer. Planning to use 2 extra servers as storage with high availability of some ...
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3answers
2k views

Xen hypervisor 4.1 Kernel Panic on Ubuntu 12.04

I have a fresh Ubuntu 12.04.1 amd64 server install following this guide I have used LVM option used all disk and make 2 LV /dev/mapper/vg-root / (80GB) vg-swap swap (4GB) now i install xen with ...
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2answers
2k views

Shrink a Windows VM in XenServer

I faced a problem. I deployed a VM by size of 500GB on Citrix XenServer and now I want to shrink it, because I don't have enough space for snapshots. Now I want to perform an export/import to do this. ...
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1answer
2k views

Xenserver 5.6 SR_BACKEND_FAILURE_47 no such volume group, but it is there

I've looked everywhere (Google, here, a bunch of other sites), and while I have found people with similar problems, I couldn't find a single one with a solution to this. Last night our xenserver 5.6 ...
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1answer
780 views

How can vms be assigned to physical cores or threads in xen

I am having intel EX5620 Cpu which has 4 Cores and 8 threads. cat /proc/cpuinfo is showing 8 cpus. From xen's wiki page they are saying its better to assign each vm to cpu core for better ...
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1answer
1k views

Trying to re-attach CIFS ISO share, XenServer SR_BACKEND_FAILURE_222

My CIFS mount for ISOs stopped working recently. I tried to detatch it and re-attach it, however I get the following error: http://imgur.com/0R47r I tried looking this error up, however I cannot ...
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1answer
5k views

Citrix Xen VM's lose networking

My client has a XenServer 6.0.2 installation with 2 Window Server 2008 R2 virtual machines. Whenever the virtual machines are rebooted they lose their IP settings (IP address, subnet, gateway). Each ...
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1answer
512 views

Difference between Xen XCP ISO install and apt-get install xcp-xapi

I just got some new hardware and am planning testing out the Xen hypervisor and Xen Cloud Platform (XCP).. more specifically, I am using a intel i5 3470, H77 chipset, 16GB RAM, and 2x2TB Hard drives ...
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3answers
2k views

How to makesure VM is in Para virtualization mode on XEN?

I am having a server running XEN,with ubuntu 12.04 as Domain 0. Intel VT is turned on by default and i dont want to run any Windows OS as VM. So 1. how can i makesure that all the created VM will ...
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4answers
4k views

Managing XenServer and its Virtual Machines Remotely

I have a dedicated server in a data center and I want to install XenServer for virtualization. XenServer will be running 2 or 3 virtual servers, all of which will be using Public IP's along with a ...
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0answers
637 views

Change xenbr0 bridge name in XenServer

I want to setup a bridge in XenServer with a name other than xenbr0 , for example cloud0. I edited those files and their contenent so they can handle a bridged connection: ...
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4answers
2k views

XenServer and ZFS via NFS

I'm trying to connect a NFS share to XenCenter. The NFS server is a ZFSGuru distro (uses FreeBSD). The zfs volume was exported like this: /sbin/zfs set sharenfs="on" temppool/share According to ...
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2answers
218 views

Xenserver: One VM crashed, xe not reacting any more

We are running a xenserver. One VM crashed, the other VMs seem to run normally. But now we can not restart this VM any more. Not even xe-toolstack-restart is showing any reaction any more. We do ...
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1answer
893 views

Share IP from Xen (XCP) Dom0 to DomU

The situation: Xen Cloud Platform installed on a dedicated server. It is assigned a batch of IPs. I want to create a CentOS 6 VM (domU) that is running a WHM/Cpanel install, and has access to the ...
4
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1answer
119 views

How does a VM hosted on xen knows that it is in a virtualized environment [closed]

I have read that in para virtualization hosted virtual machines are aware that they are being virtualized, and this allows them to increase their performance. But, how does the hosted machine know ...
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2answers
274 views

Can any one clarify this on xen cloud platform/xen server

As per XCP documentation, Xen Cloud Platform host is a 64 bit x86 server-class machine devoted to hosting multiple VMs. on blog.citrix.com they are mentioning about dom0 as It should be noted that ...
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1answer
613 views

Windows Server 2008 R2 Standard to Enterprise Problems

A few months ago I setup a Citrix XenApp cluster running on Windows Server 2008 R2 Standard Edition using the temporary 180 day license key. Recently the company bought a Windows Server 2008 R2 ...
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1answer
126 views

Virtualization - Windows guests on Linux host? [closed]

Check my previous question. I am now looking at specifics relating to enterprise virtualization. I have done some research into Citrix Xen Server and VmWare vSphere. I need to know whether it is ...
0
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1answer
315 views

can xen server be configured to address more than 4 GB for host machine

Can xen server be configured to address more than 4Gb RAM. Since its based on a 32 bit kernel,is it possible to address more than 4GB ram.I have heard about PAE can it solve this? Will changing the ...
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2answers
481 views

Creating tmpfs file system in xen server to store VM

i want to create a tmpfs file system for one of my vm to run on,using XEN Server. On the host machine i tried this but is not working,. xe sr-create device-config:device=/dev/shm name-label="RAM" ...
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2answers
2k views

XenServer/Center: Shared SRs for hosts not in same pool?

I would like to use the same SRs on XenServer hosts that are not able to be part of the same pool (because of not having the exact same cpu feature set, if I understand it correctly) in order to share ...