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

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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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45 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 ...
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1answer
305 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 ...
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1answer
4k views

Xen 6.2 - how to free up space?

I have an HA pool of 3 Xen 6.2 machines. On each the root volume is > 90% full. I've updated the logrotate scripts to keep /var/log clean but have found that lots of space is taken up by /var/patch. ...
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1answer
30k views
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1answer
303 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
45 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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6answers
9k views

XenServer 6.5.0 tapdisk experienced an error

I have just deployed XenServer 6.5.0 on a physical box. I connect to it with XenCenter client. I am able to create a VM, but when i start it, I get the following error: tapdisk experienced an error. ...
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0answers
164 views

XenServer XVA import fails - The file could not be imported

I am trying to import some VMs in XVA format - which were exported from XenServer using XenCenter GUI. When importing them, the import fails with a very useless message of "The file could not be ...
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0answers
54 views

Issues with NAUbackup Email Notification

I've setup NAUbackup to carry out backups for my xenserver 6.5 VM's. It backups up fine but I can't get the email notification to work. I've uncommented everything in the VmBackup.py script, added my ...
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1answer
119 views

Best iptables configuration for a xenserver with management interface exposed to www [closed]

Which is the best iptables configuration to protect a management interface of a xenserver with management interface exposed to www? This is my actual configuration: > :INPUT ACCEPT [0:0] :FORWARD ...
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1answer
58 views

Install ossec ids on citrix xenserver dom0

I'm running citrix xen server on a server with two nic each with dedicated public ip and the management interface is directly connected to the www and protected with iptables that allow connections ...
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2answers
3k views

XenCenter cannot connect to XenServer

I am trying to establish a connection using XenCenter 6.0 to a server where XenServer 6.0 is installed, but it gives me the following error message: Unable to connect to server '192.xxx.xxx.xxx'. ...
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0answers
70 views

How to block network connections between XenServer VMs using Open vSwitch?

I would like to block all network access between user VMs on a XenServer host so that users on each VM are unable to access any other user VM, or to sniff network traffic, no matter what. However I ...
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1answer
40 views

Trying to add 2nd iSCSI VDS to XenServer, receiving error about LUN already used by other SR

I've stepped out of my comfort zone here. Some background. I just provisioned a 2nd vdisk+volume on a HP MSA2000. This SAN is has another vdisk+volume linked to Xenserver. I set the mapping to the ...
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1answer
2k views

CentOS 7 on XenServer 6.5

I am having problem trying to get CentOS 7 Graphical installer to work on XenServer 6.5 (Service pack 1). I have used CentOS 7 template. Graphical installer does not work, getting blank screen with ...
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1answer
316 views

NAUbackup - Xenserver 6.5 Backup Solutions

Has anybody every successfully used NAUBackups for xenserver 6.5 and had their backups go to a SAN storage repository? I see the default script backs up to an NFS share but I am trying to avoid NFS ...
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0answers
361 views

Creating a XenServer VM from the Command-line

I have an issue in which I cannot understand how to create a XenServer Virtual Machine from the command-line. I have installed XenServer on an unused Tower unit, and currently SSH into it from my Mac....
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2answers
2k views

xenserver snapshot chain too long

I've been running a XenServer 6.2 server for a month or so and recently one of my VMs will not perform snapshots. I receive the error "The snapshot chain is too long" although I have removed all of ...
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2answers
2k 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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1answer
667 views

Find the current memory setting for dom0 - XenServer 6.5

On XenServer 6.5, I could find how to set the memory settings but I couldn't find how to read the current setting (what's the min, what's the max values) from the command line or by looking into a ...
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0answers
430 views

Convert ESXi 5.0 & 5.5 VM's to Xenserver 6.5

I'm looking to convert about 50 esxi vm's to xenserver 6.5. I am running the free version of xenserver 6.5. I've seen posts for the citrix xen converter tool and I've tried out the VMware OVF ...
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0answers
19 views

Xenserver 6.5 Remote Power On Hangs

After installing OMSA on both of my PowerEdge M620 blades running xenserver 6.5 I tried using the 'Power On' feature. In xencenter its showing that its trying to power on the server but no progress ...
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1answer
1k views

Change Xenserver 6.5 Pool Master

I'm looking to change the pool master because my current pool master is having some hardware issues. I've disabled HA and I came across this script to change the pool master to my other server: xe ...
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416 views

XENSERVER - PCI: Fatal: No config space access function found

We use XenServer to host our VPS and when we tried rebooting the server we get the following error right away PCI: Fatal: No config space access function found We need to edit the grub file for the ...
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1answer
966 views

Xenserver 6.5 Backup Solutions [closed]

I'm looking for a way to backup up VM's in my Xenserver 6.5 environment. I'm open to scripts or installing some tools/clients but it need to opensource. We want to backup to our Dell MD3660i SAN as ...
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0answers
407 views

Xenserver 6.5: kernel panic - noapic parameter is incompatible with Xen

Currently I have a server and I want to install XenServer on it, the problem is that I get a kernel panic during the installation procedure. 'kernel panic - not syncing: the noapic parameter is ...
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3answers
8k views

How to use iSCSI MPIO to increase bandwidth with XenServer?

I have 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: 192.168.10....
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3answers
530 views

netconsole or serial logging in XenServer DomU

I have some problems with stability of Debian guests in my XenServer hosts. To debug this problem I wanted to use netconsole kernel module, unfortunately, because the Ethernet controller is emulated, ...
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0answers
620 views

How to incrementally backup XenServer VMs [closed]

I am looking for a way to backup XenServer (or XAPI) VMs incrementally. backup just changed data every time. without performance penalty, slowing down the server after the backup is done (snapshots ...
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0answers
53 views

How are the Debian/Ubuntu Xen netinstall images built?

Xen/XenServer has this nice feature where you can select a Debian or Ubuntu template and point it at some mirror and it will go and download a minimal kernel and initrd which will be used to bootstrap ...
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72 views

XenServer, 32-Bit VM's cant exceed 64GB RAM in total

XenServer 6.5 SP1 - 128 GB RAM on Host Several 32-Bit Linux VM's are deployed, most of them are provisioned with 4 GB or 8 GB of RAM. Once the summarized RAM usage of those 32-Bit VM's reaches 64 GB, ...
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2answers
557 views

XenServer, mapping SAN LUN to VDI

I have a few XenServer 6.2/6.5 hosts, and ZFS SAN datastore, providing iSCSI exports for VM storage. It's not an optimal solution to export huge 1-2 Tb LUN as XenServer LVMoiSCSI SR, because: a) no ...
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1answer
72 views

Xenserver Virtual Adapter Limit

My understanding is that as of Xenserver 6.5 and earlier versions, you can only have 7 virtual network adapters per VM. Is there any known (probably unsupported) way around this limitation? My use ...
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1answer
264 views

Raid 50 on Dell Perc H700 Integrated Resynching state

I have Raid 50 configured on a Xenserver host with a Perc H700 card and a few weeks ago, replaced a disk which had failed. The raid had rebuilt and I am now checking the status of the array via ...
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0answers
299 views

NAS recommendation for Xenserver [closed]

I know this is a newbie question, but believe me please, I have done extensive research on the web and got some conflicting and old answers (2010-2013). I want to know what people do nowadays (in ...
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1answer
23 views

Is it possible to transfer OpenVZ VPS image to XEN platform?

I'm having a memory related issue with my vps on openvz platform and I guess that my hosting provider is overselling RAM. So, I'm thinking to move on a xen platform since ram cannot be oversold but I ...
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213 views

7Zip extraction on linux is so slow

Extracting 7zip with many small files on linux xfs, extraction speed is so slow. My Test System Environment. System1 : 2vCore/4GB CentOS 6.5 64bit guest on XenServer. System2 : 2vCore/4GB Windows ...
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0answers
13 views

XenServer reconnect virtual disk

We have two XenServer's (V 5.5). They are not clustered. They each had LUNs assigned from a SAN. One of the hosts died and no longer boots. We attached the LUNs that used to be on this host to the ...
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1answer
34 views

XenServer libguestfs

I am using XenServer 6.5 and I want to mount, modify disk partitions of VHD disk format created by XenServer. For this purpose I need to get libguestfs running as libguestfshas the required features. ...
2
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1answer
541 views

How to solve XenServer Windows guest time driffting issue?

I do have two different Windows VM guests that seem to be drifting time seriously, reaching an offset of 10-15 seconds in less than a week. Both the Windows guests and the XenServer 6.5 host are ...
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3answers
966 views

XenServer 6.2 - Hetzner host - Additional Subnet Configuration

I have a dedicated server on Hetzner, on which I have installed XenServer 6.2 . The server comes with one public IP address. I purchased an additional subnet containing 6 usable IP addresses, for use ...
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0answers
34 views

I can installa “Ossec” on xenserver host? [closed]

I own a xenserver where the host is connected to the public ip network. I allow connections only from my static ip and deny amy other with iptables, but I can install monitoring system like Ossec (...
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1answer
602 views

XerServer 6.5: Can't start xapi after Power outage

I'm currently testing XenServer 6.5 to be used on the production environment of my company. However, whenever I test its behaviour when facing an unexpected shutdown (i.e.: power outage), xapi service ...
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0answers
293 views

Acronis Backup Advanced 11.5 for Citrix XenServer 6.5 installation issues

We are trying to deploy Acronis Backup Advanced for Citrix XenServer on a running pool of XenServer's. The documentation of the product isn't quite clear about the procedure of the installation and ...
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1answer
5k views

XenServer 6.2 to 6.5 - rebuild servers?

It appears the XenServer 6.5 has been released and it's quite a bit faster than 6.2 in many ways. When I installed 6.2 I accepted the various defaults and end up with a system that is awkwardly ...
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5answers
3k views

Handling XenServer snapshotting and cloning with ZFS SAN

I'm planning on setting up a XenServer machine that uses a NexentaOS/ZFS-based SAN for storage of the Virtual Disk Images (VDIs) through iSCSI. I know I could just setup a big Storage Repository (SR) ...
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1answer
1k views

IP setting in CentoOS 6.2x64 by XenCenter 6.2

I have setup a Guest CentOS virtual machine in Xenserver.. I have updated the Xentools but i cannot find the option to config my IP Address which is showing to be 'unknown' currently. All i need to do ...
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1answer
5k 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 ...