ESX, number of network cards, NETIOC or traditional approach

Hi all

I have a question of design on the network of an ESX environment configuration.

In short, we must decide how many cards per server, we need.

It's an ESX cluster for a Cloud Computing environment (hosting).

I told my boss about 8 cards per server would be appropriate (4-port ethernet cards).

He said, however, that I am crazy in the coconut with so many NICs per host,

because of the complex network management / wiring.

and said that the 2 network cards should be sufficient, or maximum 4.

We don't know yet if we'll use NETIOC or the traditional approach

with multiple VSWITCHEs to separate the network flow.

That's what I had in mind when using no NETIOC:

THE VM NETWORK:

VSWITCH1 - ETH0 (active) = physical NIC 0_port0

Eth1 (at rest) = physical NIC 1_port0

VMOTION NETWORK:

VSWITCH2 - ETH2 (active) = physical NIC 0_port1

Eth3 (at rest) = physical NIC 1_port1

IP STORAGE NETWORK:

VSWITCH3 - ETH4 (active) = physical NIC 2_port0

(Passive) ETH5 = physical NIC 3_port0

NETWORK FAULT TOLERANCE:

VSWITCH4 - ETH6 (active) = physical NIC 2_port1

(Passive) ETH7 = physical NIC 3_port1

Is it really that crazy to have 8 adapters per ESX host?

If so, the 6 is acceptable?

I think 6 would work if we combine vmotion and storage over IP on the same VSWITCH,

or tolerance vmotion and the fault on the same VSWITCH.

He thinks that 4 is an absolute minimum.

Somehow, I don't think it's a good idea to combine the vmotion/ipstorage/and fault tolerance

on the same network adapter. I think that if we get only 4 adapters for each host.

We forget storage over IP and keep all related storage

connected with Fibre Channel.

But maybe I am too greedy-NIC here?

Currently, we do not fault tolerance

but I think that there is a demand for it in the future.

It is, therefore, may be an exaggeration to allocate separate physical maps to do this.

It might be better to combine it with the flow VMOTION?

That's what I had in mind when using NETIOC:

1 virtual switch, whose actions for the load balancing,

and with the load database grouping enabled.

SHARING OF NETWORK FLOWS:

VMOTION 20 |  VSWITCH1 | eth0_ACTIVE

MGMT 10 |                         | eth1_ACTIVE

NFS 20 |                         | eth2_ACTIVE

FT                  10  |                         | eth3_ACTIVE

VM                 40  |                         | eth4_ACTIVE

|                         | eth5_ACTIVE

|                         | eth6_STANDBY

|                         | eth7_STANDBY

It may take a higher share for NFS valuie.

We don't know yet what kind of goal, NFS data warehouses will be used.

There will also be Fibre Channel connected to data warehouses.

In the NETIOC scenario, if 8 physical NIC are really too much, I guess we could

do with 6

But 6 also seems to be a minimum in this situation for me,

or can come out us with 4?

Also, about NETIOC, given that this kind of thing is still pretty new (since 4.1),

anyone here have experience with the new NETIOC feature on

a distributed switch?

I would get at least 6 cards per server,

better one or two network cards too much that you do not use at the beginning.

but have the option to use, at least be blocked eventually.

not being able to implement a feature (for example. Fault tolerance)

because you have no free NIC more.

Or otherwise, they should just go with 2x10GB NIC,.

and distribute the stream with NETIOC.

It would greatly simplify cabling and management.,.

and give more bandwidth

Well...

Any input would be greatly appreciated.

Concerning best practices, you will need 8-

vMotion and your management network (you had left it) can share a pare - woth the pair configured active / standby management and standby/active for vMotion - FT, VM Network and Sotrage IP network should all be insulated and redundnat - depending on your load I/O that you can condense up to four network adapters with FT/VMs and storage over IP sharing the same NIC but on different VLAN -

Tags: VMware

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