installing new esx server into virtual centre

just looking to confirm exactly how many network cards i will need in a new server which i am going to install esx on and add it to my virtual centre
am i rite in thinking i need a seperate network crad for vmotion a network card for the esx server itself and a network card for the vswitch
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d3ath5tarConnect With a Mentor Commented:
depends on how many vms you are running through it and there throughput requirement, but yes as a minimum one for vmotion, one for management and more for the vms.....
Andrew Hancock (VMware vExpert / EE MVE^2)Connect With a Mentor VMware and Virtualization ConsultantCommented:
You will need at least one, two is better because you can load balance.

Best practice is a NIC for vMotion (so a pair of NICs for reundancy)

2 NICs for Management Console

2 NICs for Virtual Machine network.

But the beauty of VMware ESXi, is you can change and add later, nothing is fixed.
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
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, iuncluding trunks, VLANs, switches, and load balancing

ESXi Configuration Guide ESXi 4.1

Virtual Networking

Virtual Networking Concepts
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bgoeringConnect With a Mentor Commented:
Only one card (for the management network) is absolutely required to add it to vCenter server. However, best practice is to split different traffic types on different physical nics, and to provide at least two nics for each type of traffic for fault tolerance.

That being said I would recommend:

2 nics for management network and vMotion
2 nics for virtual machine network traffic (more if there is a LOT of traffic)
2 more nics if you have IP based storage (NFS or iSCSI)

Good Luck
dougdogAuthor Commented:
so if i didnt have the nics available would i get away with just 3  1 for vmotion 1 for management and 1 for vms
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Yes, that would be fine. (you can always add and load balance later).

6 is nice to have but not needed!
Yes, that will work ok with three nics - you just give up the fault tolerance provided by multiple nics
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