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I have a couple of thorough EE Hyper-V articles that may help:<br />
<br />
<a href="https://www.experts-exchange.com/articles/13256/Some-Hyper-V-Hardware-and-Software-Best-Practices.html" rel="ugc">Some Hyper-V Hardware and Software Best Practices</a><br />
<a href="https://www.experts-exchange.com/articles/31442/Practical-Hyper-V-Performance-Expectations.html" rel="ugc">Practical Hyper-V Performance Expectations</a><br />
<br />
No, one cannot span a VM across nodes in a cluster.<br />
<br />
2GB of physical RAM on a box? Is that available RAM after all of the other VMs or actual physical RAM?
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I have a couple of thorough EE Hyper-V articles that may help:

Some Hyper-V Hardware and Software Best Practices [https://www.experts-exchange.com/articles/13256/Some-Hyper-V-Hardware-and-Software-Best-Practices.html]
Practical Hyper-V Performance Expectations [https://www.experts-exchange.com/articles/31442/Practical-Hyper-V-Performance-Expectations.html]

No, one cannot span a VM across nodes in a cluster.

2GB of physical RAM on a box? Is that available RAM after all of the other VMs or actual physical RAM?

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Hello,<br />
i have two server with 2gb ram and one 1vn on san storage can i make the vm work on both hyper-v server so i can make work with 4gb ram ?<br />
i mean cluster and shared the processor and ram on bot to make the vm work on 4gb ram ?<br />
can also do it on vsphare ?<br />
thanks.
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Hello,
i have two server with 2gb ram and one 1vn on san storage can i make the vm work on both hyper-v server so i can make work with 4gb ram ?
i mean cluster and shared the processor and ram on bot to make the vm work on 4gb ram ?
can also do it on vsphare ?
thanks.

shared recsource on hyper-v

Computer data storage, often called storage or memory, is a technology consisting of computer components and recording media used to retain digital data. In addition to local storage devices like CD and DVD readers, hard drives and flash drives, solid state drives can hold enormous amounts of data in a very small device. Cloud services and other new forms of remote storage also add to the capacity of devices and their ability to access more data without building additional data storage into a device.

Storage

Virtualization is the act of creating a virtual (rather than actual) version of something, including (but not limited to) a virtual computer hardware platform, operating system (OS), storage device, or computer network resources. Virtualization is usually the creation of a system that executes separate from the underlying hardware resources, or the creation of an entire desktop for systems located elsewhere, similar to thin clients.

Virtualization

Hyper-V is a native hypervisor; it can create virtual machines on x86-64 systems and supersedes Windows Virtual PC as the hardware virtualization component of the client editions of Windows NT. A server computer running Hyper-V can be configured to expose individual virtual machines to one or more networks. Hyper-V Server supports remote access via Remote Desktop Connection. Administration and configuration of the host OS and the guest virtual machines is generally done over the network.

Hyper-V

VMware, a software company founded in 1998,  was one of the first commercially successful companies to offer x86 virtualization. The storage company EMC purchased VMware in 1994. Dell Technologies acquired EMC in 2016. VMware’s parent company is now Dell Technologies.

VMware has many software products that run on desktops, Microsoft Windows, Linux, and macOS, which allows the virtualizing of the x86 architecture.  Its enterprise software hypervisor for servers, VMware vSphere Hypervisor (ESXi), is a bare-metal hypervisor that runs directly on the server hardware and does not require an additional underlying operating system.