You can generate and print a PDF of this page, and then use the following worksheet to record NVMe over RoCE storage configuration information. You need this information to perform provisioning tasks.

Direct connect topology

In a direct connect topology, one or more hosts are directly connected to the subsystem. In the ThinkSystem SAN OS 11.60.2 release, we support a single connection from each host to a subsystem controller, as shown below. In this configuration, one HCA (host channel adapter) port from each host should be on the same subnet as the DE Series controller port it is connected to, but on a different subnet from the other HCA port.

nvmeof direct connect

An example configuration that satisfies the requirements consists of four network subnets as follows:

  • Subnet 1: Host 1 HCA Port 1 and Controller 1 Host port 1

  • Subnet 2: Host 1 HCA Port 2 and Controller 2 Host port 1

  • Subnet 3: Host 2 HCA Port 1 and Controller 1 Host port 2

  • Subnet 4: Host 2 HCA Port 2 and Controller 2 Host port 2

Switch connect topology

In a fabric topology, one or more switches are used. Refer to Lenovo Storage Interoperation Center (LSIC) for a list of supported switches.

nvmeof switch connect

Host identifiers

Locate and document the initiator NQN from each host.

Host port connections Software initiator NQN

Host (initiator) 1

Host (initiator) 2

Target NQN

Document the target NQN for the storage array.

Array name Target NQN

Array controller (target)

Target NQNs

Document the NQNs to be used by the array ports.

Array controller (target) port connections NQN

Controller A, port 1

Controller B, port 1

Controller A, port 2

Controller B, port 2

Mapping host name

The mapping host name is created during the workflow.

Mapping host name

Host OS type