Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

iSCSI Multipathing configuration

Posted on 2013-02-07
3
Medium Priority
?
710 Views
Last Modified: 2013-02-07
Hello,

We are currently designing a redundant active/active iscsi SAN(not routed, just switched) to be used with ESXi. I have been reading about different configurations multipath iscsi, but not yet sure which one is preferred.

Scenario 1.
one vSwitch with two active nics and two port groups for iscsi. 2 vmkernel ports where one is configured to use active:vmnic0 and unused:vmnic1 and then the other active:vmnic1 and unused:vmnic0. Then bind these two port groups to the iscsi initiator.
Scenario 2.
Two vSwitches with one port group per vSwitch and one physical uplink. Then bind both port groups to iscsi initiator.

What I am wondering is if there is any preferences in regards to which of the scenarios is to be used? Such as known issues, ease of administration, jumbo frames etc.

Appreciate any answer from people with iscsi mp experience. Ask if you need more information.
0
Comment
Question by:synackrst
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 123
ID: 38863426
Best Practice is to use Method 1 as detailed in my EE Articles, also JUmbo Frames may help your performance, test enabled and disabled.

either can be used, Method 2 is simpler, and that's how we used to do it, but Best Practice and Recommended Approach is Method 1, follow my EE article, tutorial with sceeenshots...

HOW TO: Add an iSCSI Software Adaptor and Create an iSCSI Multipath Network in VMware vSphere Hypervisor ESXi 4.1

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

HOW TO: Enable Jumbo Frames on a VMware vSphere Hypervisor (ESXi 5.0) host server using the VMware vSphere Client
0
 

Author Comment

by:synackrst
ID: 38863642
Thanks hanccocka. If the storage system fully supports round-robin that could be configured per LUN aswell with this configuration to utilize both physical nics?
0
 
LVL 123

Accepted Solution

by:
Andrew Hancock (VMware vExpert / EE MVE^2) earned 2000 total points
ID: 38863706
Yes
0

Featured Post

When ransomware hits your clients, what do you do?

MSPs: Endpoint security isn’t enough to prevent ransomware.
As the impact and severity of crypto ransomware attacks has grown, Webroot has fought back, not just by building a next-gen endpoint solution capable of preventing ransomware attacks but also by being a thought leader.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article outlines why you need to choose a backup solution that protects your entire environment – including your VMware ESXi and Microsoft Hyper-V virtualization hosts – not just your virtual machines.
Windows Server 2003 introduced persistent Volume Shadow Copies and made 2003 a must-do upgrade.  Since then, it's been a must-implement feature for all servers doing any kind of file sharing.
Teach the user how to configure vSphere clusters to support the VMware FT feature Open vSphere Web Client: Verify vSphere HA is enabled: Verify netowrking for vMotion and FT Logging is in place or create it: Turn On FT for a virtual machine: Verify …
This course is ideal for IT System Administrators working with VMware vSphere and its associated products in their company infrastructure. This course teaches you how to install and maintain this virtualization technology to store data, prevent vuln…

722 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question