Adding New Storage Adapater Software iSCSI Adapter fails on ESXI 6.5

ESXI 6.5

When I try to add a new iSCSI adapter for my new SQL Cluster servers
I highlight the Host  select configure tab then select storage adapters hit the GREEN Plus + sign select "software iSCSI adapter"
It fails with an error occurred during host configuration operation failed diagnostics report module iSCSI_vmk not loaded
I have 5 ESXI hosts and on three it works but on the two I need it does not

From the vmkernal log on both ESXI hosts it fails I get the same message.

This is Host 1

2018-04-21T14:22:30.280Z cpu0:67530 opID=8c09dc27)World: 12235: VC opID StorageAdaptersHeaderViewMediator-apply-19754-ngc:70003767-7c-bb-3944 maps to vmkernel opID 8c09dc27

2018-04-21T14:22:30.280Z cpu0:67530 opID=8c09dc27)WARNING: Device: 1316: Failed to register device 0x43032bdbc050 logical#vmkernel#com.vmware.iscsi_vmk0 com.vmware.iscsi_vmk (parent=0x7b4f43032bdbc245): Already exists

This is Host 3

2018-04-21T14:27:43.587Z cpu4:67747 opID=de776bf5)World: 12235: VC opID StorageAdaptersHeaderViewMediator-apply-20068-ngc:70003802-f1-17-8460 maps to vmkernel opID de776bf5

2018-04-21T14:27:43.587Z cpu4:67747 opID=de776bf5)WARNING: Device: 1316: Failed to register device 0x43034727b050 logical#vmkernel#com.vmware.iscsi_vmk0 com.vmware.iscsi_vmk (parent=0x7e6543034727b24d): Already exists

 

This is the first time I  added the iSCSI Adapters to these to hosts

How can it be already exists?
 

Any ideas?

Thank you

Tom
LVL 23
Thomas GrassiSystems AdministratorAsked:
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Restart host if after restarting same issue update the build

Known issue!
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Also check by logging in and out of Web Client itv HAS not been created sometimes the page does no refresh showing the storage adaptor
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Thomas GrassiSystems AdministratorAuthor Commented:
Andrew

Good call

I added some hardware to host 1 the other day and after the restart I applied the open updates

Now I can add the iSCSI adapter to that host

Host 3 need to be restarted hopefully this coming weekend

Will post results.

Thank you

Tom
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Np
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Thomas GrassiSystems AdministratorAuthor Commented:
Andrew

That did it a simple restart now I can add iscsi adapter

thank you
0
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
No problems

It's a pain in the arse!
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