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

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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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95 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
656 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
683 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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0answers
75 views

Xenserver firewall consideration

We are setting up Xenserver for a production environment with seperate VMs for a website, billing, control panel, mail. My question is, should we rely on each server's IPtables or is it necessary to ...
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1answer
201 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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227 views

Xenserver 6.2 - read-only filesystem after crash

I'm totally new on XenServer. I've installed 6.2 community edition few days ago. Everything was working fine (4 VMs - 3 Win XP and 1 Ubuntu 12.04). When I was trying to install Zentyal as VM my system ...
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1answer
985 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
2k 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
638 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
489 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
445 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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0answers
132 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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97 views

Automate Live Xen migration of VMs to achieve dynamic load balancing in Open source environment

DRS in Vsphere is paid. Is there exist any alternative to achieve dynamic load balancing through automating live xen vm migration in open source environment ?? Also,if required, how can write our own ...
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1answer
633 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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0answers
101 views

Xen multiple simultaneous live migrations

I have some VMs on a physical server and I need to migrate them on another physical server. Both server are running Xen hypervisor. I attempted to migrate them simultaneously by executing the commands ...
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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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160 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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182 views

XenServer API - free memory incorrect

I am trying to get server info from a VM using the Citrix XenServer API, and the XAPI RRDs. The API itself returns some semi-useful data like last boot time etc, but I'm really after available memory ...
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1answer
114 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 ...
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107 views

Attach Multiple disk LVM from old Xenserver to new Xenserver

hope you can help me with this one... We have a Xenserver 6 with 4 320 Gig disks as a one LVM Volume Group. Suddenly past friday one disk failed and we were unable to start the server. I have tried to ...
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1answer
52 views

XenServer invoke shell commands in DomU

Given a XenServer instance, is there a way to use XenAPI to invoke shell commands in a Windows DomU? My purpose is to automate some guest actions in a Win7 guest. I have a Python script that uses ...
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1answer
127 views

How can i setupt XenCenter to find virtual cdrom drives?

I am making an attempt to assist a consumer however i'm slightly out of my depth, they need a XS6 dedicated server, and that i have created a series of virtual drives for numerous distros, ...
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0answers
931 views

What are the space requirements for vm snapshots in Citrix XenServer 6.2?

As I understand it, the only way to do a live backup of a vm in XenServer is to make a snapshot, convert the snapshot to a template, then export the template (to another server), then delete the ...
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1answer
1k views

After destroy_domain, XenServer VM can't Migrate within Pool

I have a three XenServer 6.1 servers in a pool. HA is normally used, but is currently turned off for this operation. Recently, I had to force a shutdown of a VM by destroying the domain via these ...
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1answer
292 views

XenServer Linux guest booting off iSCSI SAN (ZFS storage): Will a non-checksumming guest file system still be at risk?

We are storing files on FreeNAS 9.2 using ZFS. I love the data integrity claims made by ZFS, having randomly lost data in the past on servers using ext3, XFS, and ReiserFS that were not mistreated ...
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1answer
812 views

Adding 4TB local SR to XenServer 5.6 SP2

I'm trying to add a secondary local SR to XenServer but not having any success. The server has two RAID 10 arrays; the primary array was selected for VM storage in XenServer setup - it totals 272GB. ...
2
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1answer
8k views

Convert Hyper-V .vhdx file for import into .vhd file for xenserver import?

A VM was sent to me as .vhdx instead of .vhd and I need to import it into xenserver which supports .vhd but not .vhdx. I looked at the following solutions: Convert-VHD via Powershell Hyper-V ...
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2answers
989 views

Error running xe sr-create

I'm trying to add a new SATA drive (SSD) as a local SR. XenServer may have seen the drive before, but I don't recall every doing anything with it. I'm attempting to run this command: xe sr-create ...
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3answers
1k views

install xenserver 6.2 on 3ware 9750 raid5

I would like to install XenServer 6.2 (kernel 2.6.32) on a raid5 managed by a 3ware 9750 controller. The XenServer installer doesn't recognize the raid5 and i think i have to load a driver for the ...
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1answer
545 views

XenServer Guest PV - Serial Port RS232

Is there any way how to forward (passthrough) physical serial port to XenGuest PV system? I need to be able configure serial device with virtual server on XenServer 6.2. I’m looking for some like ...
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1answer
118 views

Smart solution for XenServer firewall?

I've been searching for a smart solution for a XenServer firewall for about a month now. The documentation for the new default networking backend "openvswitch" is not that detailed and I can barely ...
3
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1answer
4k views

XenServer Converting HVM to Paravirtualised

Recently I have been tasked with the daunting process of converting a setup of HVM enabled VMs (running on Citrix XenServer 5.6.0) into PV (paravirtualised) containers. The constraints of the project ...
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96 views

Xen 6.2 guest IP Assignment

so basically I have written a provisioning system that provisions from a billing system onto XEN. Right now I am assigning a DHCP IP to the guest on boot. The host access the client server via ssh and ...
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3answers
8k views

Can XenServer be administered remotely?

I keep reading conflicting reports regarding Xencenters' management capabilities. Is it true that you have to be on the same subnet to connect to Xenserver via XenCenter?
2
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1answer
2k views

XenServer 6.1 Reports Wrong Storage Amount in XenCenter

We're using XenServer 6.1 Advanced on three blades in a pool. I'm in the process of moving storage from an old SAN to a new SAN using Storage XenMotion. So far, so good! I discovered though, on a LUN ...
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1answer
233 views

How to let users access Virtual Machines created in Xenserver [closed]

I have created 5 VM in my xenserver, i would like to know if theres any way to have weblogin interface or something which allow our users to connect to a specific VM? or anyway how can i let my users ...
2
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0answers
115 views

xenserver vm routing fails half the time on the same network

I recently switched from openstack (due to complexity) to xenserver at work, I ran into an issue that I can't solve, I can ping the server all the time but the vms part of the time. here is a ...
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1answer
2k views

New VLAN configuration on Citrix XenServer 6.5

We have an existing xenserver environment I have recently inherited. We have multiple xenserver vlans working that can all talk to each other. I am now trying to set up another network and cannot seem ...
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0answers
312 views

Restore LVM if VG is not consistent (XenServer 5.6.1)

i have a VG that uses the PVs /dev/md1 and /dev/md2. Now one hdd failed in /dev/md1: [root@xenserver1 ~]# cat /proc/mdstat Personalities : [raid1] md1 : active raid1 sda3[0] 382320128 blocks ...
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1answer
2k views

Xen 6.2 - NIC bonding - LACP or active/active?

I have 3 XenServer 6.2 machines with 4x 1Gb NICs. Would I be better served by: putting these in an LACP bond at the switch putting these in an active/active at the xen server leaving them separated? ...
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0answers
453 views

How to increase CPU core speed of a guest to maximum of Citrix Xenserver Host

There is a Citrix XenServer 5.5 (HP ML370 G5, Xeon 2GHz) on this Server there is a Windows Guest (Windows 2008 R2 x64) under Properties I set 4 CPU Cores with max prio. But if I check with CPU-Z the ...
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0answers
757 views

Xenserver Error config does not exist in xenopsd

My xenserver was freezing at the splash screen on bootup, so I used the "fallback" parameter during boot. Now it brings me to xenconsole with the error at the bottom: "The server failed to handle ...
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0answers
79 views

How can I export a XenServer virtual machine with all its snapshots?

Is there a way to export a virtual machine running on XenServer with all its past snapshots? I have tried to export a VM through XenCenter (right click on the machine and "Export..."). After importing ...
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1answer
2k views

Citrix Xen Live Migration without a pool

I have Citrix XenServer 6.2 Is it possible to use the xe vm-migrate command without having a pool? My command: xe vm-migrate vm=movetest host=newhost --live --force Error: Host newhost not ...