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Questions tagged [xenserver]

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

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Kernel parameters mem and dom0_mem in XenServer 6.1

We are running XenServer 6.1 in production, and recently had OOM-killer fire and eventually take down one of our blades. I noticed that in the kernel logs from the oom-killer instance that it seemed like there was plenty of memory available from…
Steve R.
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How do I set up a VM on Citrix XenServer to run on a Raid0 partition?

I have a dedicated server from a hosting provider that I got with Citrix XenServer 6.2 installed. I've installed XenCenter, and gotten connected. Everything seems easy enough until I try to create a new VM. The server has 2x120G drives on it, and…
Inukshuk
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How do I make a volume within a LVM survive a reboot?

I have a xenserver that has a local ISO repository created following Inside the LVM found at this link: http://kb.softescu.ro/server-administration/linux-server-administration/how-to-create-a-local-iso-storage-repository-on-citrix-xenserver/ This…
hookenz
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How create partitions with custom layout in VM on Xen Server?

We use XenServer with RAID 0, as one disk only (I wonder if this is a good approach, if not what would be ?), then we install Xen. After that we put the centOS 6.4 x64 DVD in the server and try to install it. But when it should came the option to…
Valter Silva
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XenCenter can't connect to XCP server after restart

After restarting a XCP 1.6.10 host machine, XenCenter 6.1 is no longer able to connect to it. The failure message is always "Server failure: Unauthorized". Using ssh with the exact same root credentials works fine. I can't seem to find any log on…
dorian
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Over committing memory failing with out reaching half of actual RAM

I am running centos 6.4 with 2.6.32-358.6.2.el6.x86_64 which is actually running as a xen vm with ram 2 GB On this i have set cat /proc/sys/vm/overcommit_memory 2 But when i try to start my java application its showing java.io.IOException:…
Kevin Parker
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throttling traffic with tc, but bandwidth is wrong

I am using these commands to set up bandwidth throttling: tc qdisc del dev eth1 root tc qdisc add dev eth1 root handle 1: cbq avpkt 1000 bandwidth 100Mbit tc class add dev eth1 parent 1: classid 1:1 cbq rate 1Mbit allot 1500 prio 3 bounded…
nn4l
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Migrating XenServer VMs from Intel to AMD servers

I need to replace my XenServer 6.1 resource pool hardware. I currently run Intel hardware and I have to move to AMD hardware (corporate politics and budget stuff, blah blah blah). I have downtime available so I can use cold migration - live…
John Smith
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Strange Ubuntu boot up warning

I have a VM (Xen based), I can boot up the machine but there are some warning during the boot up. Are they normal? If not, how to solved? md: Scanned 0 and added 0 devices. …
Howard
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Split management network from data in Xen Server

I'm working on configuring our existing pool of four hypervisors running XenServer 6.1 to use a separate management network. Currently the setup is a single link with a public address over which all VM and management traffic flows. We're working…
poolski
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configure iptables to allow in/out bound connections from the WAN (web) and only a couple pcs on the LAN while blocking anything else

I have a Xen server with several Virtual Machines on it sitting along side normal pcs on my LAN. The VMs host content bound for web access. Httpd is one of them so lets use that as an example. I would like to configure iptables (or my network) as…
hwshadow
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Xencenter Console is very slow

I am using xencenter to administer xenserver 6.2. Xencenter VM console is very slow. I am using vpn connection. I don't want to setup ports. So, what can I do?
Nikita Zernov
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XenServer - Recovering VM

After googling all day I have had no luck, so I hope someone on here can assist me. I setup my XenServer, created a ubuntu VM, then placed my itunes library (300gb+) onto the system. After this, I then go to install another VM, after failing I…
Daniel
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How can I create a new VM pointing to something other than a CD/DVD

I am new to XenServer and want to experiment with adding new virtual machines. I am running XenServer 6.1 and XenCenter. I have successfully created a new VM by burning a DVD and during the creation in XenCenter referring to the DVD by selecting…
Mario
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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 inside the cisco (with access mode vlan x). This…
Paul Jacobse
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