I'm finding more and more, though, that the apps I want to combine end up conflicting somehow with other apps. I'm assuming one host server can handle all of these virtual servers when I say this.
We have 3 VM hosts. The VMotion feature of VMware is important to us. We tend to break it down by what the app is doing and if it can coexist with others. For example all of our licenses managers for software are held on one VM without any issues. Yet on another we have a single app because it doesn't play nice with others. For me having to simply log on to one VM for each kind of app is easiest.
I forgot to mention that if you're going to try and combine apps you should try to do that only with apps that can suffer unexpected reboots.
For instance an email gateway might co-exist with a AV server and Spiceworks and WSUS, none of which would really cause a problem for us if all went down for a reboot. Combining an Exchange Server with something else wouldn't be too smart if that other apps gives you cause to boot the server for problems, upgrades and whatnot. I used to run by the "one app per server" idea we also use Datacenter so I can run as many Windows Server VMs as I can , but lately I've been combining a lot more.
Now big stuff like Exchange will always get it's own - I don't want anything else on my Exchange turf! Our solution was the same as Mahasd, Windows Datacenter. We have 3 Virtual Hosts VMware with Windows Datacenter on each and don't need to be concerned about further server licensing costs.
With Datacenter you can also downgrade to running lesser servers Win, etc. One app per VM on Windows Datacenter, for ease of maintenance when reboots are required. I can avoid situations where one application requires a specific patch, but a different app is incompatible with it. Generally I like to keep mine running as lean and trim as possible.
Big thing is to make sure I never have busy apps together I even try to keep them segregated on different machines. I do have some that have several apps running. That said these are apps that are doing something only when they're being used. My virtual DC are just that and nothing more.
Same with Exchange, SQL, and sharepoint. I isolate mission critical app servers especially. As previously noted, some services are more tolerant to reboots. But I'd rather not have any problems. Well, Mike After looking at all of the responses.. It sounds like there is no clear "best practice". It looks like it comes down to total resources and personal preference.
Each way has it's own set of pros and cons based on your situation. Agree with previous posts. VMs give you lots of flexibility to set things up one way and fine tune it as you monitor usage patterns, etc. I have some VMs that are RAM heavy running databases and one day may require their own server nearly. SO, while you can have a middle ground, the variation is very wide.
Because Vmware use a algoritms that give to the virtul machine the resources that nee in determinate time. There's not nearly enough information. Is this server a C64, or a Cray? How many cores? How much ram? What load? Are they idle? What networking? Personally I wouldn't want to run more than about vaguely busy production guests per host but that's me. To add to the above suggestions, with an exact idea of what Hardware no. Sign up to join this community. The best answers are voted up and rise to the top.
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However, the limitation is that the containerized application shares the operating system kernel. This means the container must run the same operating system as the host. Hyper-V provides a feature called container isolation, which lets you run each container in a customized virtual machine, and get access to any operating system kernel, even Linux. This allows Windows and Linux containers to run simultaneously in the same machine.
These isolated containers are similar to traditional virtual machines. However, they are optimized to conserve resources. For example, Linux Containers on Windows 10 LCOW runs a virtual machine with a minimal Linux kernel that has just enough capabilities to support the container.
Isolated containers can also dramatically improve security, because they offer hardware-level isolation between containers. For more details, read on in-depth blog post on Windows Containers.
This provides the following benefits:.
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