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software iscsi vs HBA

Hi all,
I have a general question about software vs hardware iscsi initiator, hope someone will explain.
We are using software iscsi initiator, multiple nic ports and each is configured with in a separate subnet.
As far as ESXi concern, it has multiple paths at ESXi side. When I looked at EMC VNX's hosts' info and it warns that there is only one HBA from a host and you have " HAVT issues."
Does this mean that software iscsi initiator is treated as HBA? Is anyone using iscsi with VNX?

Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)

You need to check specifically with EMC VNX (and I'm sure we've done this Question before with you) what iSCSI Configuration is required, because Multi-Path iSCSI, which is normally configured using Software iSCSI is not the best configuration.

iSCSI Software Adaptor is a Software HBA. (hence why it's a vmhba33/vmhba34 etc), it has a single iSCSI IQN.

sara2000

ASKER

We followed VNC's recommended practice. I think I can ignore the warning as per the link. I am going to open a case with EMC to verify it.

http://www.vmwareinfo.com/2013/04/emcs-havt-utility-tip.html

ASKER CERTIFIED SOLUTION

Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)

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Bryant Schaper

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