Connection to AVS failed due to disabled iSCSI MPIO

Symptom

Connection Azure VMware Solution cluster to Storage Pool may fail with message "Please ensure that iSCSI Multipath I/O is enabled on your AVS private cloud".

Solution

Before connecting Storage Pool to Azure VMware Solution cluster, please ensure you configured External storage address block within your AVS private cloud.

To configure External storage address block, open your AVS instance in the Azure portal and then click on the following:

Note: It is required that the /24 CIDR block you pick under item #3 in the above screenshot does not overlap with the /22 network that AVS was given when it was originally created. Furthermore, that CIDR block also cannot overlap with any Azure VNet or on-premises networks that AVS is connected to.

Upon clicking save in the above window, AVS will add a couple of VMkernel ports to your existing AVS ESXi hosts, and those VMkernel ports are assigned IP addresses from the /24 CIDR block that you input via the screenshot above. Once you've found a suitable CIDR range that fits that criteria, you simply need to enter it into the field above and AVS will automatically provision and get it setup after about 10-20 minutes.

After VMkernel ports are configured, please repeat with the connection of your Azure VMware Solution cluster to Storage Pool.