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

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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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169 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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53 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
78 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
947 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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152 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
933 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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292 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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96 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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1k 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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1answer
384 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
398 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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150 views

XenServer Console

I just follow this tutorial to access XenServer Console. I can run the first example, and it's working fine, but for the second example it's not working. I cannot access to console with a java ...
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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
727 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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108 views

Error in XenServer iSCSI SR Creation (SR is not available)

I have a XenServer 6.2 with a Debian 7.5 VM which i use as iSCSI target. I have my target reachable by portal but i would make a Storage Repository available in my XenServer pool. Unfortunately, ...
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1answer
219 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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56 views

Automatic switching of network card when vm is moved

I have two hosts in a pool and I used to be able to move the vm around and they will start without any problem. But after I played around with some network setting, which I don't remember what, I ...
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1answer
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
153 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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624 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
702 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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54 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
12k 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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189 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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33 views

Boot to last VM status on XenServer reboot

I have a Citrix XenServer 6.2 on a non-prod enviroment, which means that could be affected by power outages from time to time. This server has a lot of VMs, some of them are power on and other not. ...
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227 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
317 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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238 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
5k 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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125 views

xenserver backup producing snapshot too long

I am having the same problem as outlined in this question: xenserver snapshot chain too long I don't have enough rep to comment on the post so I am creating my own question. I have attempted to use ...
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1answer
894 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
756 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
214 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
1k 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 ...
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1answer
3k views

XenServer 6.2: how to use a partition on install disk as SR?

I'm setting up an old spare server with XenServer 6.2 to run some test VMs and to get some experience on XenServer itself (we're used to our own linux+xen setup and to the usual VMware suspects). ...
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0answers
737 views

ext4 root filesystem corruption under XenServer 6.2 DomU

We're with a problem with filesystem corruption in guest machines in a XenServer 6.2 It only happens in Linux Machines. Randomly the filesystem remounts as read-only and them corruption starts on the ...
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1answer
653 views

XenServer - VMs to access Internet, but should not be visible from the Internet

I have installed XenServer on my server at the Hetzner datacenter. I have bought an additional /29 subnet containing 6 usable IP addresses from them. I want to install more than 10 VMs on this ...
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1answer
639 views

How to debug intermitent network outage on Citrix XenServer

I have two Citrix XenServers in a pool. Both have a NIC for Management, a NIC for the SAN and a NIC for the VMs to connect to the network. The NIC for the VMs (eth3) has multiple networks configured ...
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3answers
1k 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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156 views

Virtual Allocation Unreasonably High

Just upgraded our pool to Xenserver 6.2 and installed a brand new host, also with Xenserver 6.2. Was excited about the new features since Xenserver was fully open-sources (over-allocate ram, ha live ...
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758 views

Change screen resolution of Xenserver Console for a CentOS VM

I need to increase screen resolution to 1024x800 for all my XEN console. I tried to place "vga=791" at the end of kernel line the file /boot/grub/grub.conf but it seems that most of the boots ...
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1answer
1k views

XenServer 6.0 to 6.2 - Pros and Cons - Upgrade or Start Newly?

I currently have 2 XenServer hosts running with version 6.0, not really any patch installed. They are currently pretty much maxed out memory wise. I was planning to add a 3rd host to the pool but ...
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190 views

XenServer HA with only internal storage

I am new to XenServer 6.2. I have 2 Dell machine, each with 24GB RAM, 3x600GB HDD. It is possible to run VM in XenServer on 1 machine and then replicate to another Dell machine as HA. I went through ...
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1answer
129 views

Configuration of a small-scale xen server

We are looking for good practices for setting up a xen server (4 cores, 32gb ram). There will be 6 VM (+ dom0), running personals servers (probably low CPU demands). Once the system will be ...