VMware server

Red Squirrel · Post by **Red Squirrel** » Sat Jul 29, 2006 3:36 pm

Just curious if anyone has tried it yet. I run it on my linux server. it's pretty sweet to consider that its free. There's also a windows version.

http://www.vmware.com/products/server/

Archived topic from Iceteks, old topic ID:4472, old post ID:35860

richardj · Post by **richardj** » Sat Jul 29, 2006 11:15 pm

What does it do?

I've heard here & on the web about virtual pc--I don't get it.

Archived topic from Iceteks, old topic ID:4472, old post ID:35863

Red Squirrel · Post by **Red Squirrel** » Sun Jul 30, 2006 1:08 am

It lets you install an operating system in a virtual environment on the same physical machine. So right now I have a windows 2003 VM on the same physical machine as my main linux server. The VM get's it's own IP address as if it was a machine plugged into a hub or switch with the server. At work we have about 12 VMs running on a single physical machine which is running ESX (enterprise/datacenter flavour of VMware server). Mostly old NT4 servers, we basically saved like over half a dell rack worth of physical space by retiring all the old servers and putting them in a virtual environment.

In this picture I'm connected to the management console, so I can control the VM as if I was at the console of the actual machine (which is virtual).

Archived topic from Iceteks, old topic ID:4472, old post ID:35866

richardj · Post by **richardj** » Sun Jul 30, 2006 1:11 am

OK__________

But what does this do for you?

In other words, if I want Linux on my pc I repartition it and install Linux

Archived topic from Iceteks, old topic ID:4472, old post ID:35867

manadren_it · Post by **manadren_it** » Sun Jul 30, 2006 5:23 am

One of the neat things about VMs is that they are completely isolated from the host machine, and totally disposable. So say, you could install Linux on a vm, decide you didn't like and it delete the VM again all in a couple of hours without even shutting down your PC once. Or you could install windows on a VM, do all sorts of testing and stuff that could potentially break the OS, and never worry about losing anything.

Those I suppose the benefit really comes in business. Training, software development. You can let a student go nuts on a VM and just roll it back to a snapshot when he's done, or test an application on multiple OSes or software configurations whiteout having multiple system lying around. Where I work we've even got Vms replacing some of the smaller servers. It's obviously not the best solutions for everything. But as long as the box is powerful enough and you have the disk space, you can dial up a new system in an hour or so while you might be waiting weeks to order up something new box, wait for it to come in and get it racked and ready to go.

Archived topic from Iceteks, old topic ID:4472, old post ID:35869

Red Squirrel · Post by **Red Squirrel** » Sun Jul 30, 2006 1:08 pm

Yep. And in the case of where I work the 12 VMs are all old NT4 boxes. Basically machines under 1GHz with about a 1 gig of ram. The server hosting the VMs has 8Gigs of ram, 2 dual core ~3.2 GHz xeons. So the VMs have lot of resources.

The main thing is consolidation, so you dont need to be using physical space and power by having all these machines running. That was my main issue at home, I have a few windows apps I want to run 24/7 but have no room for a windows server, so I put it in a VM on my main server.

Archived topic from Iceteks, old topic ID:4472, old post ID:35871

syb · Post by **syb** » Mon Aug 07, 2006 10:41 am

there must be a down side to this, like it's slow or something

Archived topic from Iceteks, old topic ID:4472, old post ID:35916

Red Squirrel · Post by **Red Squirrel** » Mon Aug 07, 2006 12:00 pm

Well there is some performance overhead but its not too bad. In our case at work with ESX, the VMs have more resources then they had on their old boxes.

Dont expect to play games in a VM though, graphics is where the difference is really seen.

Archived topic from Iceteks, old topic ID:4472, old post ID:35917