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Wiring ESX Hosts SAN and Network

Posted on 2014-02-06
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Wiring ESX Hosts SAN and Network

we have 4 ESX servers in production.
we purchased 2 more ESX servers.
I would like to know the procedure( the conventional way) to wire the new ESX servers to SAN Storage and Network.

if someone can give me a topolgy-like on how all the pieces get connected , that will really be appreciated.

Thank you
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Question by:jskfan
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by:Andrew Hancock (VMware vExpert / EE MVE)
Andrew Hancock (VMware vExpert / EE MVE) earned 375 total points
ID: 39840633
Best Practice assuming iSCSI (you do not mention which SAN)

1. Dedicated Storage Network consisting of at least two physical switches. (in a stack)

2. At least two network interfaces on your ESXi servers, connected to each physical switch.

3. Jumbo Frames enabled. (MTU=9000) -as per my EE Article

HOW TO: Enable Jumbo Frames on a VMware vSphere Hypervisor (ESXi 5.0) host server using the VMware vSphere Client

4. Two iSCSI VMKernel Interfaces arranged as per my EE Article

HOW TO: Add an iSCSI Software Adaptor and Create an iSCSI Multipath Network in VMware vSphere Hypervisor ESXi 5.0

5. other specialist tweaks, are stated by SAN Vendor.
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Author Comment

by:jskfan
ID: 39840830
It is Fiber Andrew, forgot to mention that.
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by:Andrew Hancock (VMware vExpert / EE MVE)
Andrew Hancock (VMware vExpert / EE MVE) earned 375 total points
ID: 39841167
Then in fact that's a little easier.

You connect two HBAs with fibre to two physical switches, to create two paths.
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by:Soulja
ID: 39841993
On the network side (Production data) , create LACP Port Channels with  802.1q tagging on the switch(s) that the ESX server hosts connect to.
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Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

 
LVL 117
ID: 39842005
@Soulja It's Fibre Channel! (and LACP is not supported on ESXi 5.1/5.5 for standard switches)
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by:Soulja
Soulja earned 125 total points
ID: 39842073
@Hancock

I am not referring the Fiber Channel (Backend). I am referring to the front end. If LACP isn't supported then static port channels (LAGS) will suit just fine.

The author states
I would like to know the procedure( the conventional way) to wire the new ESX servers to SAN Storage and Network.
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Author Comment

by:jskfan
ID: 39877148
So the standard way is :

Connect one HBA to Network switch 1 and connect another HBA to Network Switch2
Connect one HBA to Storage Switch 1 and connect another HBA to Storage Switch 2
Connect one Cat5 to iDRAC.

I am assuming HBA adapter can be used for both Network switch as well as Storage switch

in our environment I have seen 3  other Cat5 cables connected to ESXi, I wonder what would these be used for…
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Andrew Hancock (VMware vExpert / EE MVE) earned 375 total points
ID: 39877186
Yes, that's correct.

Without more detailed screenshots of your hardware and networking, it's difficult to tell, what the other 3 Cat5 cables are doing!
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Author Closing Comment

by:jskfan
ID: 39914831
Thank You Guys!
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