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

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Xencenter import error “System.ArgumentNullException: Value cannot be null. Parameter name: path1”

I am using Xencenter 6.2 to import an ESXi 5 OVF file to a Xenserver 6.2 host. When I select the OVF file from to import, Xencenter throws an error saying "There has been an unsuspecting error, please ...
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Apache cloudstack: Cannot add instances using template created from snapshot

I followed this https://github.com/imduffy15/GSoC-2014/ and installed apache cloudstack with basic networking in my local machine, and every thing worked smoothly. ​I can add instances from the built ...
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1answer
449 views

Trouble with port 80 nating (XenServer to WebServer VM)

I have a rent server running XenServer 6.2 I only have 1 public IP so i did some NAT to redirect ports 22 and 80 to my WebServer VM. I have a problem with the port 80 redirection. When i use this ...
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2answers
6k views

CentOS 7.0 as DomU in XenServer 6.2 SP1; cannot run with PV drivers?

It appears that CentOS 7 cannot work with paravirtualized drivers with XenServer 6.2 I’ve installed one PVHVM guest with the xs-tools package but the drivers fails to connect at bootime. I got this ...
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1answer
321 views

XenServer 6.2 crashes everytime I try to install a new Windows 7 x64 vm

I'm running XenServer 6.2 with all patches and updates on two boxes. One box is an intel core i7 2600K.. works great. My latest box is an AMD A10 APU.. and everytime I try to install Windows 7 OS as ...
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215 views

Opening a port range using Open VSwitch

I am locking down a VM on xenserver to allow only port 3389 and the ports required for domain controller authentication on windows. I am trying to do this using Open VSwitch. Locking down and allowing ...
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1answer
87 views

booting straight into xen VM

I have a need to convert a bare-metal machine to a virtual-machine (via VMware converter). This part has been done successfully. I have then been asked to convert the vmware image to a XEN hvm. The ...
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1answer
673 views

How to reclaim space in Citrix Xenserver's root filesystem?

On Citrix Xenserver 6.2, when the root filesystem is about to be full, what can be done to reclaim space? So far, I deleted logs but I'd like to go further. Is it safe to delete files in ...
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1answer
349 views

XenServer internal network speed

I have just configured a XenServer 6.2.0 (based on CentOS) host in a server with 2 high-end processors, 256 GB RAM and SSD storage. The distribution is up to date. We set up several virtual machines ...
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656 views

XenServer IP Failover OVH not working

I have got problem on XenServer with IP FailOver in OVH. I did everything what is in this official tutorial http://help.ovh.co.uk/BridgeClient and IP not working. On my VM is Debian 7 64bit I set MAC ...
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2answers
161 views

How to block a VM from accessing other machines on network - XenServer

This might be a little far fetched and might not be possible. I have a virtual machine that will have files on that I don't want people to be able to transfer off - they are allowed access, I just ...
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332 views

XenServer Hotfix XS62ESP1005 - Which device drivers to update?

I am updating my XenServer 6.2 installation with all the latest hotfixes and according to the notes I need to update my device drivers before restarting the server. When I go to the page with the ...
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1answer
360 views

IPv6 Routing / Subnetting

Recently I have installed Citrix Xen Server 6.2 on a machine. My Provider (Hetzner) gave me the IPv6 Subnet 2a01:4f8:200:xxxx::/64. Followed an article in the providers wiki (1) i got it working and ...
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1answer
1k views

XenCenter no OS boot parameters field

I just recognized, that 2 of my 10 VMs in XenCenter have a slightly different properties window. In these two VMs I cannot set OS boot parameters, because in the window I can only set the boot order. ...
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2answers
256 views

What could be wrong with my XenServer iscsi configuration after a recent power outage

We just experienced a power outage due to a lightning storm. Outage was long enough to restart servers and switches. We have 2 XenServer hypervisors running in the same pool. At first, both of them ...
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1answer
409 views

Active-passive xenserver bond availibility after stacked switch failure

Citrix documentation for Xenserver recommends that when physicals NICs participating in an active-passive bond, need to be connected to different switches, the switches must be stacked.. Would the ...
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1answer
195 views

Restore from XenServer LVM ddrescue image

the disks in my xenserver are dying. I could rescue some of the lvm volumes with ddrescue. Now I setup a new xenserer and I wonder how to restore from the rescued images. Anyone has experience with ...
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55 views

Replacing the main xenserver disk but retaining the vm storage

we have a simple xenserver host with a 2TB disk and a bunch of vm guests on it. I would like to add a new small 60Gb SSD drive and reinstall xenserver on it, but I don't want to lose any of the VM ...
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1answer
86 views

Capturing video of virtual console output of Xen vm

I would like to capture the video output of virtual machine running on Xenserver from boot-up and through reboots. I know I can capture the video by capturing the output of an assigned VGA adapter, ...
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1answer
1k views

XenServer 6.2: unable to detach NFS mount

We recently lost an NFS server. It was used to export a drive with ISO files for use in XenServer patching / updating / etc. The server has been replaced but the mounted drive can't be removed from ...
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181 views

XenServer IOPS read

I'm trying to retrieve some performance statistics from several Citrix XenServer installations (with versions from 5.5 to 6.2). What I need exactly are IOPS (read and write). Trying to use iostat on ...
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3answers
969 views

Is there option to provide IP address while cloning a VM itself in XEN

I use XEN virtualization platform. I have configured its networking in xenbr0 mode. I have set up one base VM and I am cloning it to create new VMs by using virt-clone command. My question is there ...
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1answer
328 views

Citrix Xen Server 5.6: Virtual Machines (VM) Deleted or Gone Missing?

In my environment I have a Citrix Xen Server (ver 5.6) with multiple VM's setup in my lab on a local partition mount. I arrived to my lab setup last week to find that my VM's have gone missing. The ...
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1answer
108 views

OSSEC - Multiple VM's on a single DELL blade (XenServer Hypervisor)

I have a DELL blade with ~100 VM's (with a Citrix XenServer 6.1 hypervisor), all with ossec agent connected to a ossec server outside that same blade. I have a bit of a problem: they all run rootkit ...
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1answer
2k views

Xen Server 6.2 Upgrade to SP1

I installed Xen server 6.2 and I am currently playing around with it. I managed to install 1 vm, and I have applied all hotfixes available up to the Service Pack 1. That specific patch gives me an ...
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465 views

Cannot communicate with network on second NIC

I am running XenServer 6.2 with two NICs on separate subnets: xenbr0 : 192.168.1.50 xenbr1 : 192.168.0.50 The .1.50 NIC communicates with an internal network and works perfectly. The .0.50 is ...
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2answers
444 views

Boot xen server through ipxe

I'm want install Xen Server 6.2 though ipxe, I tried different configurations, no luck making to work until now. I found some may example to boot from pxe using TFTP server, and here is an example: ...
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3answers
5k views

How to use iSCSI MPIO to increase bandwidth with XenServer?

I've a FreeNAS Server with four network interfaces. The iSCSI traffic goes through two of those interfaces, and each interface has one IP address in a different subnet. As example: igb0: ...
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2answers
11k views

Xen server VM's don't see network?

We trying a Xen server, and have a very strange issue, one that never happened to us on open-source Xen. The VM's created on Xen do not see the network outside the host. They do can ping each other ...
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1answer
769 views

XenServer 6.2 guest network configuration

None of VMs I tried to install can't reach internet. I have Xensever 6.2 installed on a server with single NIC, which can be accessed via 2 public IPs. XenServer can ping google.com and seems to be ...
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241 views

Fresh install of Xenserver 6.2 , cannot load tools in Guest Win7

I've just started testing the XenServer 6.2 offering.. it's awesome so far.. I've event loaded all the patches and hot fixes, and started a windows 7 guest image. I want to install tools, but ...
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3k views

Failure connecting to Dell MD3200i from XenServer 6.2 pool

This question also asked at Citrix Forums http://forums.citrix.com/thread.jspa?threadID=332289 I have a MD3200i that is currently working fine with my Xen5.6 pool, but I cannot get a connection to ...
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1answer
181 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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682 views

Xenserver 6.2 cannot send alert using gmail smtp

I'm using Xenserver 6.2 and configured ssmtp.conf an mail_alert.conf in order to receive alerts through email. I followed the instructions on ...
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1answer
811 views

VM's Grub menu invisible with XenServer 6.0.2?

I have a dual-boot VM on XenServer 6.0.2 but grub just shows up as a black screen. I can still make a selection and such, but it's just a black screen in the XenServer console. Any ideas on how to ...
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57 views

XenServer pool, unable to access certain networks from 2 servers in pool

I have Xenserver pool of of 3 xenservers, at version 6.1. After we got a serious DDOS attack on our network, all servers got rebooted (whole pool of 3 servers got restart and entered into maintenance ...
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3answers
14k views

Time to live exceeded, result after pinging the gateway from host in one subnet

I got a server with XenServer 6.0.2 and this server has 3 nic with 3 different ip addresses, because I am using 3 different subnet The first 2 card are working and from the first 2 subnet I have ...
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213 views

Changing XenServer from LVM SR to EXT SR

I'm trying to setup openstack using this page: https://wiki.openstack.org/wiki/XenServer/PostInstall Unfortunately I think when I setup xenserver it setup the local SR as LVM (which the page above ...
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2answers
2k views

XenServer 6.2 changing mtu

So I've looked around for a way to change the MTU of interfaces on XenServer 6.2, but can't find anything that works for me ... One method spoke about changing the ifcnfg-intX files in the ...
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240 views

Diskless XenServer 6.2

I'm a bit suspicious since I cannot find relevant recent information on this. I am wanting to boot a diskless XenServer version 6.2 (the server... not the installer). I have an Intel Pro 1000 ET ...
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2answers
345 views

D-I-Y VPS Hosting for multiple domains (3) on a single static IP [closed]

and thanks for your input. What I want to do: I want to host some applications Web and email, for example, for myself and two clients on one static IP Address, primarily to learn, and possibly to ...
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1answer
267 views

XenServer Host with single NIC

The Citrix documentation speaks volumes about NIC bonding, separating management and VM data, but is it so terrible to run a XenServer host with only a single NIC? The server that we have access to ...
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1answer
6k 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
1k views

How can I prevent a second network interface from updating DNS with its IP address?

Recently I added a second network interface to my Domain Controller, and assigned a private subnet to provide a iSCSI volume for backups, but the IP address from this interface is being propagated to ...
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1answer
792 views

Installing XenServer 6.2 on Proliant DL160G6 freezes during “Installing from base pack”

I'm trying a new install of XenServer 6.2 on an HP Proliant DL160G6 with a HP P410 raid card configured as RAID 5 over 4 drives, with a 256M BBWC. The install starts off properly, but when it gets to ...
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2k views

Cannot mount external FreeNAS NFS on XenServer VM or Dom0

I'm hoping someone can help identify a problem or at least send me in the right direction. I've created an NFS share on FreeNAS. The server has an external IP. I can mount this on my Debian machine ...
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1answer
241 views

XenServer virtual network firewall

We are setting up XenServer machine with several VMs for our ecommerce business. We are intending to distribute services across several VMs (1 for web, 1 billing, 1 email, etc.) The XenServer machine ...
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1answer
2k views

Difference between snapshot export and VM export for backup purposes

I'm new to xen server, and would like to know few things about the best ways to do a complete back up of a VM. I'm using XenCenter and have encountered some issues wih exporting a complete VM : the ...
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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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2answers
1k views

Can I run a Fedora VM on top of XenServer / ESXi? What's the closest alternative?

I am planning on moving to Citrix XenServer to host a couple of VM's and am looking to find out if Fedora is in fact supported. The site says it can run Red Hat, but aren't this and Fedora nearly the ...