-1
votes
2answers
144 views

Best type of virtualization when CPU has more threads than cores

I have a 4 cores/8 threads Intel Xeon processor. This is something I tried to particularly ask in SolusVM support, however I haven't got a good reply. I even don't know if they are right: they told me ...
2
votes
1answer
324 views

“kernel: Cannot read proc file system: 1 - Operation not permitted” — millions of such messages each minute in kern.log on OpenVZ VPS? [closed]

I'm seeing repeated never ending such messages in kern.log on my OpenVZ ubuntu 12.04 server. Mar 2 06:23:33 localhost kernel: Cannot read proc file system: 1 - Operation not permitted. Mar 2 ...
0
votes
0answers
18 views

Automated hostname availability for OpenVZ environments

for several years now I am administrating some OpenVZ Hardwarenodes with a fairly low amount of containers per node (10-20). I'm about to setup a new machine, and what's always bothering me is the ...
0
votes
0answers
60 views

How to diagnose sporadic performance issues?

I have a web application with very varying response times and can't find out what causes that. That's the (quite complicated) setup: Powerful (i7, 32GB RAM) dedicated server in a German data center, ...
1
vote
0answers
22 views

Would using containers be appropriate for a virtual lab?

So far i have been running a VM lab using virtual box, however functionally i cant see a difference between using virtualbox and a container based virtualization application, such as lxc. This is ...
0
votes
0answers
27 views

vzpid equivalent for LXC?

I've recently migrated my containers from OpenVZ to LXC as OpenVZ support was dropped from Debian Wheezy. I used a command called vzpid on the host machine that identified from which container the ...
0
votes
1answer
94 views

OpenVZ: Custom settings on container startup / Choosing the right MySQL Server

What I have: Two servers running Wheezy/OpenVZ with One MySQL container on each host master/master replicated (mysql1/mysql2) Replicated DNS on each host (dns1/dns2) different web-containers on ...
2
votes
2answers
125 views

Why would you use Xen as opposed to OpenVZ for trusted Linux-only host/guests? [closed]

Every time I need to create VPSs out of one of our machines, I (re)think the virtualization technologies, and seem to end up with OpenVZ being the most suitable for performance reasons when all I want ...
0
votes
0answers
80 views

OpenVZ container not reachable after host reboot

I started having a rather strange problem lately. After rebooting the OpenVZ host system all Containers seem to be up and running, but some of them (not all) are unreachable from both the host system ...
-1
votes
1answer
119 views

openvz containers optimization

i am trying to optimize 14 containers on 64 G.B ram , 16 Core processor based on Centos 5.9 Final 64 Bit Distribution the load average of the server up to 300 this is my memory stats # vzmemcheck ...
-1
votes
1answer
81 views

recipient rejected in a SMTP connection from a OpenVz container [closed]

I'm facing a strange problem. I'm getting a recipient rejected on a SMTP server only from inside an OpenVZ container, while from the physical server everything works fine. Here's an example of a ...
-1
votes
1answer
109 views

Find ddos attack on OpenVZ container [duplicate]

How do you figure out which OpenVZ contain is under attack from a dDoS? I know it is an attack because the b/w and incoming traffic shot WAY up. Can this be done with netstat? Are some attacks not ...
2
votes
0answers
156 views

Can't lock vz with proxmox

I would like to backup my virtual servers to move them away. And when i have started the backup process then i only see this every time: Feb 09 08:40:34 INFO: Starting Backup of VM 101 (openvz) Feb ...
0
votes
1answer
1k views

Loading Raid drivers during Proxmox VE installation

I'm using Hardware raid on my Proxmox VE installation and it doesn't recognize my Raid array, so how can I load raid drivers during installation? This is the driver reseller provided: ...
1
vote
1answer
517 views

How to edit or create roles in Proxmox VE?

How can I create Roles or edit them with specific privileges in Proxmox VE ?
1
vote
1answer
326 views

Virtualization on Atom D2700

Will paravirtualization work fine on Atom D2700 with 4 Gb RAM? Just several ubuntu/debian (maybe others) VM's with not heavy loads (LAMP for tests, torrent client, file server for PC and Mac etc.). ...
0
votes
3answers
1k views

Should I choose KVM/XEN over OpenVZ or use them together?

I've got a dual xeon e5504 server, with [for now] only 8GB of ram. Storage is'n impressive either: 3x 146GB sas in raid5 + 500GB sata drives. Currently it works as a development server, but it's over ...
0
votes
1answer
297 views

Running OpenVZ virtual servers within a Xen XCP vritual server? Bad practice?

I have a 1 server with 8GB RAM and 2xQuadcore Processors. It currently has the Xen XCP installed on it, and centos6.2 x64 running on a virtual machine. I have a server control panel software that I ...
2
votes
1answer
397 views

Anyone using Archipel in production for managing virtual machines?

I am getting ready to deploy a new server for my company. We intend to use virtualization mainly for security but also to help with versioning and other issues. We have decided to use openvz. Now I ...
1
vote
3answers
399 views

dedicated server virtualization, xen or openvz?

I am putting a new server in a datacenter for company use and my company website. I use a lot of VPS accounts and in that world the choices are xen or openvz. I will be using virtualization on my ...
0
votes
1answer
728 views

OpenVZ Can't initialize containers after install

I have installed OpenVZ on centos 6 on a dedicated server. I followed quick installation guide on openvz wiki. After installing thru yum, I don't know why, but grub.conf wasn't automatically updated ...
3
votes
4answers
630 views

Private Cloud: Debian and OSS vs vmware vSphere, which is best for corporate use? [closed]

I'm hoping someone can shed some light regarding the current state of virtualization on Debian. Since I like my information first-hand, i thought I'd ask here for some real-world use cases. I am ...
3
votes
2answers
892 views

How to properly set CPU Units for OpenVz VEs

According to all the sources I read (openvz wiki, various mailinglists, forums, ..) the values of the cpuunits settings are relative to each other. So when all are equal and the system is busy, all ...
0
votes
1answer
787 views

How to convert OpenVZ OS template to bootable image file?

My question is how to convert a pre-created OpenVZ OS template which are in tar.gz format (such as these) to an image file in order to be able boot it with other virtualization solutions such as QEMU ...
0
votes
1answer
180 views

Networking OpenVZ VEs

I've got a host with OpenVZ installed on it with several containers. I want to set up a virtual network between some of them but without having to use any physical devices but I'm new to OpenVZ and ...
1
vote
1answer
105 views

How does OpenVZ know a VE's distribution

With OpenVZ you assign a VE's hostname (among other things) from the host node (HN) using vzctl set CTID --hostname myhost --save. It then sets this in /etc/vz/conf/CTID.conf. During startup of the ...
1
vote
1answer
377 views

help to optimize container

I have an openvz node with only one container (Cpanel server). Yesterday I had many memories issues: Unable to fork: Cannot allocate memory Can someone help me to optimize my node setting ? I ...
1
vote
1answer
430 views

OpenVPN routing for OpenVZ containers

I am trying to make OpenVPN tunnel accessible for all OVZ CT's running on the host. I have initialized the tunnel devise on the host server to remote VPN server. Although I have PING response from the ...
1
vote
2answers
501 views

OpenVZ: access physical server vs. accessing virtual servers

I am just playing around with OpenVZ and had no experience with virtualization before. So I have the following problems in understanding this virtual infrastructure: I have a physical Linux server, ...
3
votes
1answer
1k views

How to limit memory for VE on openvz

I need to configure only one vps in a openvz node. The node will have only one vps. I need help to configure the memory limits correctly. The node have 4GB memory with 4GB swap. I would like to ...
1
vote
3answers
2k views

is it possible to check CPU and RAM usage of the OpenVZ *host* machine from within a VM?

I have purchased an OpenVZ VPS from one of the hundreds of internet hosting companies. I dont pay much for it, but lately performance has been terrible. They are obviously overselling, but I am ...
1
vote
1answer
172 views

openvz node with only one vps

I have an openvz server with 2Gb ram and would like to configure a vps for use all server resources (no swap). I run: vzsplit -n 1 -f vps1 -s 0 and have this setup: Configuration file generated by ...
4
votes
1answer
274 views

RAM burst, myth or reality?

Often when buying a VPS, we are faced with a number of features. These include the RAM. In XEN virtualization RAM and swap is (or should be) dedicated. In OpenVZ, how important is "burst"? I ask ...
0
votes
1answer
164 views

need recommendation for running PHP/Zend based optimizer

Firstly, I must admit that I don't know much about setting up PHP beyond the basics. I have an Ubuntu 10.04 server system (hosted) running primarily as an FTP store for a commercial store software. ...
3
votes
2answers
1k views

OpenVZ vs Xen, how much difference in performance?

There is a Xen vs. KVM in performance question on ServerFault. What will be the speed difference if the choice is between Xen and OpenVZ? Searching for such benchmarks does not show any results ...
1
vote
4answers
455 views

OpenVZ Host is the source IP address rather than actual web surfers?

I have a problem with my VPS. Simple example: <?php $ip = $_SERVER['REMOTE_ADDR']; Echo "User IP : " . $ip; ?> That code should display the user IP address, but it's showing the HN IP ...
0
votes
1answer
623 views

Is it possible to export an OpenVZ machine and use it after in another virtualization tool?

I'm planning to use OpenVZ in an old machine I have at home. I want to know if a dumped OpenVZ instance image can be exported to other formats (like VirtualBox or Vmware). Thanks!
1
vote
6answers
1k views

Virtualization solutions for a small Linux server?

I have a little machine ( AMD Athlon 64 X2 2.1 GHz, 3GB of DDR2, 320GB disk space) that I use as a server, I would like to convert it as an Hypervisor to host many little Linux Virtual Machines ...
0
votes
2answers
477 views

OpenVZ container as gateway performance issue?

I am running a lot of openvz container in server. Now I have a lot of performance issue, and I think they come from I/O since munin graph show a lot of I/O activiy. Server is proxmox, and it was ...
1
vote
1answer
485 views

openvz graphing user_beancounters

We run a cluster of openvz servers and are looking for a way to automatically graph the content of user_beancounters for all ves. We currently have a fairly rudimentary cron which alerts us when ...
3
votes
3answers
882 views

OpenVZ - share files between virtual machines (VEs)?

Is there any way to share a directory of files between virtual machines running in OpenVZ? My particular use case is that I want to have a shared YUM cache directory, for when they all need to run ...
1
vote
3answers
5k views

Partitioning recommendations for a Proxmox VM Server (OpenVZ)

We are new to virtualization and we are planning to turn our online server into a virualized one, mainly for maintenance, backup and recovery improvements. Initially we would only have one real ...
2
votes
1answer
227 views

OpenVZ and VMWare Server 1.x on the same Server

Has any used a server to run both OpenVZ and VMWare Server? Are there any issues with doing this I should be aware of?
1
vote
4answers
902 views

OpenVZ Host is the source IP address rather than actual web surfers?

I am experiencing something a little bit odd. I'm running OpenZV on a CentOS 5 server. It appears that on containers the source IP address that say Apache webserver sees a request from is the OpenVZ ...
2
votes
3answers
1k views

Best way to benchmark linux virtualization solutions

I'd like to run some benchmarks on linux virtualization solutions (namely Xen, KVM and OpenVZ) and I'm currently thinking about how to set up the test environment. My current approach would be the ...