Virtualization Solution? VMware, Virtuozzo, Xen..?
Jan 12, 2007
I'm running a dedicated server and the main site on the server relies on Windows OS. The site is not fully utilizing the potential of the dedicated server, so I'd like to put some of my other sites on the same server and eliminate the other (shared) hosting I've been using.
Here's the catch... For the other sites, I'd like to run WHM/Cpanel which requires Linux.
If I understand correctly, this leaves me with having to decide on a virtualization solution, which I know nothing about. Some options I have been given are VMware, Virtuozzo, and Xen.
Would you suggest one of these or a different solution entirely?
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Oct 17, 2007
How will VMware ESX Servers handle a dos, ddos or syn attacks? Will it compleatly crash all VM running on the server just becouse one VM and its ip interface is attacked and make file systems monted on a san or nas to be corrupt becouse of the traffic on the local network will be downgraded becouse of all packets that passes to the VM:?
Does vmware have some protection tools for this kind o attacks or does this kind of virutalization only work in a an lan that is protected from Internet?
Will 2 dedicated nic solve this?
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Aug 14, 2007
A company i am working with is looking to install a VMWare setup comprising of something like this :
6x Dual Proc Quad Core Nodes with 16GB RAM
2x Clustered iSCSN SAN Nodes
I am intending on purchasing the full suite including DRS/HA/VMotion.
Now this is all well and good but the software pricing is absolutely horrendous! So my question to you chaps is :
Is anyone using the latest Virtual Iron or Xen Enterprise in a high end environment?
Obviously VMWare is the market leader, the big boys are using it and its something you can bank on. (literally! HSBC use it ALOT!)
Is it even worth looking at VI/Xen for something like this? The cost would be like a quarter of the total cost of a VMWare license.
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Sep 28, 2008
I want to make vps in my server, Which one is better? Xen, Virtouzzo Or Vmware.
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Apr 28, 2007
im thinking of trying out virtualization, but before I start investing in a serious server for it I like some experience with a testserver.
but what do you recommend? VMware, virtuozzo or something else?
what are the pros/cons with the VMware/virtuozzo? and what are your experiences?
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Apr 5, 2009
What software do you recommend me for creating vps?
openVZ
Xen
VMWare ESX
Virtuozzo
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Sep 1, 2008
A friend of mine is looking to develop a pretty extensive and complex website and would like to be able to use something similar to VMWare server, but doesn't want to be locked into VMware and needing to find a small fortune just to build out his application should either VMware start charging for VMware Server or having to move up to one of their high-end high-cost solutions.
I know with Virtuozzo the licensing fees are reasonably low, but does anyone have any experience using it outside of the hosting industry?
Does the software lend itself well to being used by a single client who is not using it to sell VPSs?
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Jun 28, 2009
Which virtualization technology is better? Hardware level or software level? My friend suggested me to go for software level virtualization. However, I am still concerned about the technology as to which I should choose?
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Jun 28, 2009
Which virtualization technology is better? Hardware level or software level? My friend suggested me to go for software level virtualization. However, I am still concerned about the technology as to which I should choose?
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Sep 3, 2009
Aspnix.com has offered Virtualization Technology on their dedicated servers - do you know what it means?
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Apr 27, 2009
tell me which web panel recommend for xen virtuo.?
i need frontend of panel.
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May 12, 2009
I have this nice vps, but its on linux, and I always wanted to run windows apps on the vps, because of the nice configuration. I already tried wine, but most of my windows apps don't work, cuz they require .net framework to run.
I tried to instal vmware server and virtualbox, but both of them complain about a kernel problem, they are unable to locate my kernel source, so they can't run.
I am linux newbie, and i am running on a centos 5 operating system.
Some people say its impossible to run virtualization 'inside' virtualization, but i already read some people that say its possible.
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Mar 29, 2009
In another thread somebody had mentioned something about Citrix Xenserver utilizing shared iSCSI storage with multiple hardware nodes. I think this is a very intriguing concept, but is there anything open source or less expensive that you have used to accomplish similar resource virtualization?
Whether citrix or not, describe your setup!
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Mar 5, 2008
I have a machine with 2*Xeon 2.66, 16GB Ram, 146GB Raid 1, 292GB Raid 10.
This machine will be used to run Mysql (32bits or 64bits) and MDaemon (32bits only).
I have 2 options to choose and I'm not pretty sure which is better.
a) Win 2008 32bits Enterprize using PAE for ram support and running Mdaemon 32 and Mysql 32.
b) Win 2008 64bits standard having virtualized a win 2008 64 bits for Mysql 64 and a win 2008 32 bits for MDaemon 32.
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Sep 15, 2008
This is a little bit Offtopic here but maybe it's okay to ask my question.
For my GUI software development i need a virtual server solution. It must run WinXP, WinVista, LinuxI386, LinuxAMD64, FreeBSDI386, FreeBSDAMD64 and Solaris.
I'm currently running VMWare with all this systems. But their KVM tools are very instable - especially when waking up from hibernate etc. They eat the key/mouse focus and the only way to get any reaction is often a hard shutdown.
How good are the other Virtualization Kits? I heared that FreeBSD does not work on VirtualBox? I'm especially interested in Xen but i'm not sure if this is good for Desktop use. Seems that it is promoted almost exclusively as a server solution.
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Jun 26, 2008
We usually find some constrains using Apache/cpanel (1.3.41). Basically, we serve simple php codes and few images.
We usually setup our server to use lighttpd for static content and apache for dynamic content. Ok, due to some complex requirements on mod_rewrite we use that setup.
But frequently we see our apache reaches it limit and slow down with 0 idle servers. Specially as we have about 270 requests/per second on apache. Our load is low, barely passes 1,2 of load for small periods, our memory ok, our I/O is fine.
But we almost always reaches the 0 idle servers. Until now, our best config was:
Timeout between 60-120
KeepAlive Off
MaxKeepAliveRequests 1000
KeepAliveTimeout 15
MinSpareServers 50
MaxSpareServers 200
StartServers 50
MaxClients 256
MaxRequestsPerChild 80
As we clearly see that our server is under usage, I was wondering if it's a limitation on Apache or if I put virtualization on my server and run two apache webservers as cluster I would get better results.
So what do you think about guys? It's a matter of optimization (what could I do better for this httpd.conf setup?) ? Or cluster with virtualization would deliver what I'm looking for.
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Nov 24, 2008
What Virtualization Software Do You Like?
Please vote among Virtuozzo, Xen, OpenVZ.
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Apr 13, 2007
I have tried to search but couldn't find the information I was looking for. We are starting to offer VPS and considering MS Virtual Server and vmWare. vmWare seems rock solid and feature rich. Which virtualization technology you are using? Is vmWare a good platform for vps for hosting industry?
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Nov 3, 2009
Microsoft said this about Microsoft Licensing for Virtualization
Windows Server 2008 Datacenter
Run any number of software instances in physical and virtual operating system environments on a server.
Now,I have some questions:
1)Is this method of licensing just for hyper-v or we can use it on vmware ESXi or Xen?
2)How we can use Microsoft Volume Licensing on Vmware ESXi and Xen?
3)What is the best solution for windows virtualization?(vmware esxi or hyper-v or xen)
4)what is difference between xen and xenserver?
5)which control panels we can use for hyper-v,vmware ESXi and xenserver?
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May 23, 2008
Basically I need to virtualize a single new dell server. One virtual server needs to run windows 2003 server standard and Microsoft SQL 2005. The other virtual server will run CentOS Linux with a perl and PostgreSQL application.
The dell server is going to have two quad core xeon processors (8 cores total), 8gigs of ram, and two 15,000rpm SAS drives.
I came across Virutal Iron which is free for the single server instance and seems like it will do the job well. Has anybody used it? What is performance like? Seems to run a Java backend so wondering about the performance there.
Any other recommendations? I looked at VMware but the cost is so high, and probably more then I need, since I only need to virtualize a single server.
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Apr 14, 2007
what the hosts are using for xen virtualization. Para or Full virtualization and why?
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Mar 6, 2008
i know xen is hardware based virtualization but is OpenVZ as well is the question
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Aug 7, 2008
For all of you who are ordering / have ordered VPS systems, what do you think about having Windows vs Linux available from your provider?
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May 3, 2008
Just bought
PU: 2 x Intel Xeon E5410 Quad-Core 2.33GHz, 12MB Cache, 1333MHz FSB, 45nm Hi-k
RAM: 12GB (6 x 2GB) DDR2-667 Registered ECC - Interleaved
NIC: Intel 82573V & 82573L Gigabit Ethernet Controllers - Integrated
Hot-Swap Drive - 1: 150GB Western Digital Raptor (1.5Gb/s,10Krpm,16MB Cache,NCQ) SATA
Hot-Swap Drive - 2: 500GB Western Digital RE2-GP (3.0Gb/s, Variable Speed, 16MB Cache) SATA
Optical Drive: Low-Profile 8x DVD +/- RW Drive
Power Supply: 520W Power Supply with PFC - 87% Maximum Efficiency
Rail Kit: 2-Piece Ball-Bearing Rail Kit
OS: CentOS 5 - 64-bit - Preload, No Media
I want to use it for running 2 Vbulletin forums, 1 big blog and Image Hosting
do you think its better for me to put as Virtualization and run individually OR just install Cpanel and Put everything together at once?
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Oct 26, 2009
So when buying nehalem servers, if you populate 6 rdimms, you can run at 1333Mhz, if you populate 18 rdimms, 800 Mhz (12 rdimms, 1066mhz)
So what do you do for virtualization? the reality is most of the time 48gb is going to be enough for virtualization (that would run 12 4GB servers or 32 2GB servers) and i think at 64gb or more, CPU starts to become a limting factor, but the price of 48GB @ 1333 is slightly more than 72GB @ 800. So what are you guys doing out there? do you go for the performance or do you go with the overkill of memory (that might sometimes come in handy but you probably wont use it all -- more likely just give your VMs more memory for the fun it)? The problem is the 1333 Mhz vs 800 Mhz performance.
Our current environment is a bunch of 16GB servers (50xx chip) and the limitation on us virtualizating more per host is the memory. So I know 48GB is going to be very much welcomed and I think we could use more.. 64gb would be ideal, but we will be happy with 48@1333, but 72GB sounds interesting too, there might be some scenarios where we could use that 72GB although i think performance will shift from memory limitation now to CPU
Do you think if we buy 800Mhz 72gb we will ever look back and think "wish we bought the 48gb 1333 rdimms and not these 800mhz ones"?
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Sep 12, 2007
I use a host that gives me way more bandwidth and space than I need, but it is still super slow. It's Dreamhost who is known for charging very low fees and promising the world. Although my sites do load and I get unlimited everything pretty much, I can't stand the slow loads.
They have offered me virtualization of my server so I can create my own virtual server with 150Mhz and 150MB of dedicated CPU/memory for $15 more a month... do you think that will speed me up a lot or should I just suck it up and pay for a better host that doesn't pimp themselves out so badly?
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Jul 25, 2008
I'am curious which (semi) virtualization implementations you use, and why! Just out of interest...
- VMWare Infrastructure 3
- VMWare ESXi
- VMWare Server
- Virtuozo
- OpenVZ
- XEN
- Linux vserver
- FreeBSD jails
- append the list, if I forgot some
What have been the reasons for your decision? Where do you see disadvantages using other than your choice?
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Jul 31, 2008
As my clients' needs expand, they're asking for chroot ssh/sftp setup. I'm currently on a dedicated Linux setup but don't really have the time to set up a whole new box with full virtualization or investigate a full chroot solution (baby on the way), and to be honest it would be less hassle to move to a new provider than worry about down time with sites.
What I'm looking for:
- linux hosting
- hosting for 30+ accounts, some with several domains
- at least 6 IP addresses for SSL certs
- each account in a full chroot environment (ssh/sftp/ftp) so they can't poke around each others' files, or each account set up in a virtual machine setup (ie: openvz)
- maildir
- spamassassin
- php 5, mysql, perl 5.8.8
- suexec apache would be nice
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May 2, 2008
I am going to be sending a 2U server in for colocation. It will be running CentOS 5 64bit at the core and be utilizing VMware for virtual machines.
If I get say 8 ( 5 usable ) IPs as apart of my colocation plan, how can I delegate which IPs goto which virtual machine?
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Jan 17, 2009
my friend install VMware on his server to run vps, it looks likely interesting, do you use VMware to offer vps?
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Jul 5, 2009
which is better ? for create windows and linux VPS!
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