Configure Remote storage device and DE Series array

Initial setup is required to enable the DE Series system to connect to the remote storage through the supported iSCSI protocol.

Before You Begin

Before proceeding to the ThinkSystem System Manager to configure the Remote Storage Volumes feature, the following pre-requisites must be met:

  1. Manually establish a cabled connection between the DE Series system and the remote storage system such that the two systems can be configured to communicate via iSCSI.

  2. Configure the iSCSI ports such that the DE Series system and the remote storage system can communicate successfully with each other.

  3. Obtain the IQN of the DE Series system.

  4. Make the DE Series system visible to the remote storage system. If the remote storage system is a DE Series system, then create a host using the IQN of the destination DE Series system as the connection information for the host port.

  5. If the remote storage device is in use by a host/application:

    • Stop I/O to the remote storage device

    • Unmap/unmount the remote storage device

  6. Map the remote storage device to the host defined for the DE Series storage system

  7. Obtain the LUN number of the device used for the mapping.

It is recommended that the remote source volume is backed up before starting the import process.

Cable the storage arrays

As part of the setup process, the storage arrays and IO host must be cabled to the iSCSI-compatible interface.

The following diagrams provide examples of how to cable the systems such that they perform Remote Storage Volume operations over an iSCSI connection.

remote target volumes iscsi use case 1 lenovo remote target volumes iscsi use case 2 lenovo

Configure the iSCSI ports

You must configure the iSCSI ports to ensure communication between the target (local DE Series storage array) and source (remote storage array) arrays.

The iSCSI ports can be configured multiple ways based on your subnet. The following are a few examples on how to configure the iSCSI ports for use with the Remote Storage Volumes feature.

Source A Source B Target A Target B

Source A Source B Target A Target B