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vSphere: Same subnet for vMotion, HA, Administration?

Hi,

Is it possible to have the same subnet for vMotion, HA, Administration on vSphere? I know it's not a best practice, but I'd like to keep it simple because I have only two physical machines inside the Datacenter?
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g0all
Asked:
g0all
3 Solutions
 
baller119Commented:
It is possible. This will not scale to dozens of hosts but it will work fine in your environment. I have three physical machines, and two vSwitches: One for inter-VM traffic and one for vMotion/vmKernel. With over two dozen VM's running in this environment for several years, it has not been an issue.

If you are not saturating your links during vMotion, you should be OK.
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g0allAuthor Commented:
I have two NICs on each host, it will work to have created a vSwich for each two NICs, vSwitch to serve everything?
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Rsilva98Commented:
since you have two nics you should separate them. one nic for VMnetwork and the other for VMkernel for vmotion.  If you are using iscsi you should consider use multipathing with the 2 nics,
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Yes, you can use the same sub-network and vSwitches, and interfaces, if that's all you have available, Not best Practice, but it works!

If you want to read more on networking in VMware ESX/ESXi, then I recommend the following:-

I would also recommend reading through the Networking Sections of the following guides to gain a better understanding of Networking in VMware ESX/ESXi.

Pages 13 - 73 Discuss Networking in Detail, including trunks, VLANs, switches, and load balancing

ESXi Configuration Guide ESXi 4.1
http://www.vmware.com/pdf/vsphere4/r41/vsp_41_esxi_server_config.pdf

Virtual Networking
http://www.vmware.com/technical-resources/virtual-networking/virtual-networks.html

Virtual Networking Concepts
http://www.vmware.com/files/pdf/virtual_networking_concepts.pdf
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