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

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Can I convert a Fast Clone to a full copy?

I am using XenCenter to access a XenServer with several VMs which I use for dev DBs. Periodically I create new VMs with a fresh batch of sanitized live data, then swap them out with the old VMs. ...
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17 views

/dev/centos/root does not exist after migrating CentOS7 from vmware to Xen

I am migrating a CentOS 7 system from VMware Server 2 to XenServer 6.5. The CentOS system was installed using the minimal installation. I used ovftool to convert the .vmdk file to a .img using the ...
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6 views

Auto Power On Xenserver 6.5

After applying updates to my xenservers I noticed VM's that were turned off turned themselves on after the server I applied updates to rebooted. I do not have any vApps configured and I did not ...
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0answers
9 views

XenServer 6.5 Zeroed Performance Metrics for IOPS

In one of my XenServer 6.5 pools, I'm adding some graphs in XenCenter to measure my iSCSI storage IOPS and throughput performance and I'm getting no response. The graph is actually responsive, but ...
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0answers
14 views

XenServer Fails to Backup:

I've had this issue on and off for a year and I figured I should finally post something. When going Server -> Backup on a three host pool of XenServer 6.5 SP1, I get "Unable to read data from the ...
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20 views

Does anyone have experience with XenServer 6.5 with software raid 1?

I have successfully installed software raid on Xen Server 6.5 and I'm about to move a VM from ESXi to Xen due to benefits of raid 1 for a development server. Does anyone have any kind of experience ...
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1answer
23 views

How can I retrieve XenServer Alerts from SDK/API or CLI

Is there any way to retrieve alerts infomations from xenserver, such as API or CLI. Alerts in XenCenter
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20 views

XenServer 6.5 - VM from snapshot and SID

I have been reading up on the myths behind the need to change an SID for a cloned system and how a system never exposes his SID outside his own self (so there's no need for it). Previously i used to ...
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54 views

How to recover XenServer vm's from a mdadm raid 1 HDD

I have an older server, namely, Fujitsu Siemens Primergy TX 150 S6 on witch i have installed XenServer 6.5.0-90233c. On it i have multiple virtual machines of different sizes of witch i need to ...
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33 views

Xenserver 6.5: Disc Reclaim does not calculate correct freed space after deleting Snapshot.

I am working to virtualise some servers on my location. After installing one server successfully, generated some snapshots during the preparing process. Then deleted them but Reclaiming freed space ...
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1answer
52 views

Mounting virtual disks on XenServer

I want to mount virtual disks on the XenServer host. I don't have any free space to create a partition this way and want to use a virtual disk on local storage to store ISO images. I can't find any ...
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3answers
303 views

Converting Linux machine from XenServer to Hyper-V

I'm in the process of converting the last few on my XenServer VMs over to Hyper-V. The majority of them have been Windows machines and I've done a backup and restore using Windows Backup. For some of ...
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14 views

Access Xenserver virtual machine in lan

I have created two virtual machines from xen server. both vm are Ubuntu server. I have hosted a application in one of the vm. It works fine. But I dont know how to access that application from other ...
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0answers
116 views

XenServer 6.2 VM Performance (SSD, RAID-10, Quad-core)

Greetings everyone :) My configuration is the following: HP C3000 tower enclosure 1st HP Proliant BL460 G1 quad core xeon 2.66GHz 12MB L2 cache, 24GB RAM, BIOS I15 5/2/2011 partnered with HP ...
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2answers
52 views

Live Migration - Switch Infrastructure

We will be deploying into an environment intended for maximum resilience/redundancy and the capability for rapid scalability. Context This environment is: 1 x NAS server with FreeNAS RAID 2 x ...
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0answers
57 views

Openstack on Ubuntu Server on Xenserver 6.5

I'm trying to install OpenStack on Ubuntu Server 14.04. Ubuntu server is a virtual machine on XenServer 6.5. When I try to install OpenStack: $ sudo openstack-install I get the following error ...
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1answer
38 views

Xenserver network config

I don't know how can I config the XenServer 6.5 for working with networking. I ordered an subnet but I don't know how can I configure the XenServer to provide IPs to my vp. I read this article about ...
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2answers
89 views

Can't install Solaris 10 on XenServer 6.5 VM

I have XenServer 6.5 installed on a server, and i have been trying to install Solaris 10 on a VM, it just get into the boot screen of the installation ISO, i proceed with ENTER and then this message ...
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0answers
81 views

Xenserver 6.5 (Open Source) VDI per ISCSI LUN (ZFS ZVOL)

In Xenserver 6.5 (open source edition) I want to create VMs with VDIs that are actually iSCSI LUNs shared by a CentOS 7 SAN which are in fact ZFS ZVOLS (the last part should not matter). My problem ...
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1answer
32 views

How can I force xenserver to create a full (not paravirtualized) vm?

Exact opposite of this question: How to makesure VM is in Para virtualization mode on XEN? I've got xenserver 6.2 and nowhere in the UI when creating a VM does it give me the option to use HVM and ...
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1answer
79 views

Unable to Active Xenserver Free License

I have recently installed Xenserver 6.5 onto a local development server for testing. I wanted to active using the free license from Citrix but seem unable to. When I navigate to the License Manager ...
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0answers
30 views

Deleted /var/patch/applied — Can I recreate it?

I was cleaning out old patches in my Xenserver and accidentally deleted the applied directory in /var/patch. I know which patches have been applied so can I recreate that folder? Is there an example ...
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2answers
90 views

Xenserver, iSCSI and Dell MD3600i

I have a functional xenserver 6.5 pool with two nodes. It is backed by an iscsi share on a Dell MD3600i SAN, and this works fine. It was set up before my time. We've added three more nodes to the ...
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0answers
74 views

How to add a serial port to a Windows 7 guest VM using Xen server 6.5?

We wonder how to add a SERIAL PORT (COM2) into a guest HPVM Windows 7 64 bits in a xen server 6.5 bare metal hypervisor. We have some clients connecting through RDP v8.1 (from Win7-64 to Win7-64) ...
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1answer
21 views

XenServer - Removing Blade Server from Chassis

I've got to remove one of our PowerEdge M620 blade servers from our M1000e Chassis server to look at the hardware on the server, mainly the mezzanine card installed. Will removing the blade server ...
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15 views

KVM vs XEN PV - which might have higher Server Load [duplicate]

I am wondering KVM vs XEN PV which will create higher server load (From Host perspective). In simple words, if identical VM's ( Linux variant) runs on a KVM based node and XEN PV based node which ...
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1answer
107 views

Enable SNMP XenServer 6.5

I want to enable snmp on my servers running xenserver 6.5. I've found a few articles with instructions to do so and the whole process seems pretty straight forward but my question is this - is there ...
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3answers
142 views

Installing XenServer 6.5 but does not boot up

I have a server with two CPUs, 64GB of RAM and a 8TB RAID 1 drive. I have successfully installed XenServer many times. But when it tries to boot for the first time, it does not boot to the new ...
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0answers
17 views

Xen server storages unplugged [closed]

In order exit a xen VM and a domain from halt state I destroyed the domain and restarted the VM. Now in xen centre I see all the storages disconnected. I tried to repair using xencenter but no luck. ...
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95 views

Auto-Reboot on Kernel BUG (not tainted, “fixing recursive fault but reboot is needed”)

I'm running a sometimes highly loaded Debian 7 VM with the latest 3.2.x kernel on a XenServer 6.2 host. Sometimes this VM runs into the following state: Ping is okay, All Services unreachable ...
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25 views

Virtualizing physical Windows Server 2003 R2

I have a HDD that seves as dead data archive. I want to virtualize the HDD in XenServer in atempt of evade some problems (like losing the HDD itself). I tried the VMconverter from VMware (to futher ...
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27 views

Minimal Rails server OS for use with High Availability (XenServer)

I have multiple XenServers configured with High Availability. I have multiple simple Rails apps that talk to each other and form a higher purpose. I have a postgresql database. Is there any distro ...
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33 views

Apply Hotfix/Update in Xen Center

I noticed that hotfix XS65ESP1013 was just issues for xenserver 6.5. I want to apply the update through Xen Center, NOT CLI. What are the proper steps for updating through xen center? I currently ...
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33 views

xe vm-disk-list >Error Multiple matches VMs found

Dell equallogic on XEN_VERSION='4.1.3' storage size 2tb usage 96% toal virt. alloc. 500gb there is only one snap shot for each vm I dont know who consumed the space? xe vm-disk-list >Error ...
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75 views

Xenserver 6.5 Live Storage Migration

In my xenserver environment I have an LVM over ISCSI storage repository (SR) and I have another SR which is an NFS share setup on a synology server. To be clear, all servers are in one resource pool. ...
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1answer
12 views

How to reset a XenCentre terminal emulator (shows junk)

While accessing a linux virtual machine through XenCentre 6's console tab, I mistakenly cat'd binary to stdout (control characters included). Using the reset command in the terminal doesn't redraw the ...
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90 views

How to backup Xen virtual machine using XL toolstack?

My server is running several virtual machines using Xen with XL toolstack. Each virtual machine uses an image file as a disk device. If I just copy these image files, there is a high possibility of ...
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2answers
557 views

xenserver - xe-toolstack restart - i lost connection from xencenter

After Xencenter-toolstack restart i lost connection from xencenter I try to restart using ssh - putty following message is showing and i lost the browser access also ............ All xe ...
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0answers
49 views

Xenserver networking in VirtualBox not working for DomU

I am trying to understand if/how unikernels work, using HaLVM and MirageOS and in order to experiment with those tools I have setup a XenServer virtual machine inside a VirtualBox on my Mac. ...
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1answer
201 views

Best Free Hypervisor with HA [closed]

We have been running the free version of Citrix XenServer for about 2 years now and it has worked OK for the most part, but we have also had our issues with it. (problems with bootloaders on various ...
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8answers
2k views

Free hypervisor for small configuration

I'm building a server for virtualization for a non profit organization. I was planning on employing VMware ESXI free but I'm second guessing my plan because newer ESXI don't seem to be well supported ...
0
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1answer
122 views

Xenserver 6.5 High Availability

I'm running xenserver 6.5 and I just configured high availability. I noticed that there is the option for start order. Is there a best practice for start order when it comes to HA? Obviously the more ...
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0answers
36 views

xenserver low disk io performance

I have XenServer 6.2 (updates applied XS62E001, XS62E002, XS62E004, XS62E005, XS62E007, XS62E008, XS62E009, XS62E010, XS62E011, XS62E012, XS62E013, XS62E014, XS62ESP1, XS62ESP1002) running a year in ...
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0answers
68 views

Xackup Backup Type for Xen Server 6.5

I'm running the Xackup trial and started backing up a few linux and windows VM's. I selected disk and memory state as the type of backup. Everything ran fine and backed up ok. When I went to edit ...
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5 views

VLAN Tags for Xenserver on VIFs

So possibly a simple question here but I haven't been able to find an answer to this. Is there any way in XenServer to associate a VLAN to a VIF instead of a network? Reason is I'm attempting to ...
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0answers
42 views

NAUbackup features + Snapshots

Does anybody know whether or not NAUbackup captures the memory of a vm, along with the disk, when it takes a snapshot? I'm running xenserver 6.5 on three blade servers and I setup NAUbackup to backup ...
2
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1answer
246 views

XenServer VHD data recovery

I have the exported disk image of a VM from XenCenter in VHD format. I used compress from the settings, if that has any impact. How I can access the files without creating VM? I have the VM settings ...
0
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1answer
216 views

Change Xenserver 6.5 MTU

How do I go about change the MTU setting for my management interface in xenserver 6.5? Right now its set to the default 1500 but I want to increase it to 9000. For my setup I have 2 nics on each host ...
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0answers
43 views

Error with Virtual CD-drive in XenServer 6.5

I have a problem with a new XenServer 6.5. When I create a new VM and I try to install some "OS" from the DVD/CD drive, I receive tapdisk experienced an error. In the log the error is different to ...
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0answers
10 views

Citrix Xenserver Service Account Issues

I'm trying to create an account with citrix xenserver so I can post questions on their boards and also get notifications for updates. I filled out the necessary info and I get an email saying an ...