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Vmware iSCSi/Fiber Channel Multipathing Configuration

Vmware iSCSi/Fiber Channel Multipathing Configuration

In Vmware there is a way to configure ISCSI for Multipathing and Loadbalancing.
I wonder if the same thing applies in the environment where they use Fiber Channel instead of ISCSI ?

Thanks
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jskfan
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jskfan
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3 Solutions
 
Paul SolovyovskySenior IT AdvisorCommented:
VMware does provide multi-pathing and load balancing is a feature of this.  Good read below, essentially you have packets go through multiple paths allowing for load balancing of IO

https://pubs.vmware.com/vsphere-55/index.jsp?topic=%2Fcom.vmware.vsphere.storage.doc%2FGUID-DD2FFAA7-796E-414C-84CE-1FCC14474D5B.html
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jskfanAuthor Commented:
so with Fiber Channel, you do not need to configure multipathing in Vmware ?
but with iSCi you do ?
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Paul SolovyovskySenior IT AdvisorCommented:
FibreChannel is similar you create paths on different fabrics and it is a similar architecture, it is still multipathed. In both cases you will need to configure the multipathing, either through VMware native round robin on the datastores or a vendor may have their on plug-in.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Please see my EE Article, step by step with tutorial with screenshots

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

I think it's a little easier with FC, because you have two or more defined FC HBAs, with WWNN, that you configure, via different paths,
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jskfanAuthor Commented:
Any link to FC multipathing , and how to configure it ?
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
It's very simple, install two FC HBA cards, note the WWNN (equiv to the iSCSI IQN), then cable up to two FC switches, and then create paths and configuration on the physical FC switches.

Paul posted a link above.

another here

https://www.brentozar.com/archive/2009/05/san-multipathing-part-2-what-multipathing-does/

Video here

https://www.youtube.com/watch?v=AIexdmdkD4s

FC multipath is not generic like iSCSI, depends on the vendor. (e.g. config of FC switches)
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jskfanAuthor Commented:
Thank you Guys!
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