Hello,
I have three esxi hosts configured with vmkernel iscsi,
vmkernel isicsi adapters must have communication between all nodes?
Your VMK Ports which you would like to use for iSCSI must be able to access your Storage. For iSCSI a IQN Target and a IQN Initiator is needed. Typically a Host runs the Initiator only which means there is no need that the Hosts needs to communicate each other for iSCSI because the act independently. From a storage perspective this can be totally different because of MPIO or loadbalacing.
Most type of storages use only a single subnet or 2 subnets and because of redundancy and two or more ports are used on ESXi, so they can technically communicate each other. There are storages which needs to be configure a subnet per port and if not more Hosts needs to be connected as the storage controller have ports they cant see each other. But that not so common.
From a VMware vSphere perspective iSCSI is "Ethernet" which always means a fabric aka switch and not iscsi direct connect but it will be dictated by your iscsi storage.
Regards,
Joerg
Hello,
The problem I have is an ESXi to which when adding the IQN in the storage it adds it correctly, but on the vCenter side it does not see the volume that I am presenting.
Testing communication via ssh from the ESXi to the Storage's target IP address through port 3260, the communication fails. I am testing with the nc -z command (From ESXi).
But I have another Node that adding the IQN to the storage and presenting the volume, when I go to vCenter, that node sees the volume presented, and there is also communication from this node through the target IP of the storage and also through port 3260.
I have rescanned the adapters, restarted the NODE, added the IP of the storage in the Dinaymic and static Discovery but the node still does not see the storage.
On a physical level, what other revisions could you carry out?
Configuring a port binding with two vmkernel adapters that are in the same storage subnet, would it be a good option?
Any advice would be very helpful. Thanks.
Hi,
Whats your Storage Vendor and which model you have?
Regards,
Joerg