Protocol independent storage discovery and enablement

• US 10,057,347 B2
• Filed: 02/13/2015
• Issued: 08/21/2018
• Est. Priority Date: 02/13/2015
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Astigarraga, Tara, DeRobertis, Christopher V., Dickens, Louie A., Winarski, Daniel J.
• Primary Examiner(s): Springer, James E
• Application Number:
  US14/622,243
• Publication Number:
  US 20160241643A1
• Time in Patent Office: 1,285 Days
• Field of Search: 709217
• CPC Class Codes: H04L 12/4641 Virtual LANs, VLANs, e.g. virtual private networks [VPN] LAN interconnection over a bridge based backbone H04L12/462; encapsulation techniques H04L12/4633; routing of packets H04L45/00; packet switches H04L49/00; virtual private networks for security H04L63/0272
• CPC Class Codes: H04L 2101/622 Layer-2 addresses, e.g. medium access control [MAC] addresses
• CPC Class Codes: H04L 61/25 of the same type
• CPC Class Codes: H04L 67/1097 for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]

Abstract

A manager node provides discovery, translation, and mapping services for supported Ethernet protocol layers. The manager node discovers other nodes within the cloud environment and issues commands to each of the discovered nodes to obtain storage device specific information associated to storage devices communicatively connected to the discovered nodes. The storage device information obtained may include such things as device function (initiator or target), device model number, device capacity, and available storage (free), etc. When the manager node has gathered the storage device specific information it makes available to a management application a list of all feasible storage devices that could be utilized within the cloud environment. The management application determines which of the discovered storage devices will be enabled. Subsequently, the manager node serves as an address translator and a gateway between protocols.

Claims

1. A method for Ethernet protocol independent storage device discovery comprising:

emulating, with a manager node, a plurality of undiscovered cloud nodes within a cloud network by broadcasting a plurality of data frames according to respective different Ethernet protocols to each of the plurality of undiscovered cloud nodes, each of the plurality of undiscovered cloud nodes operable within the cloud network according to one Ethernet protocol upon being discovered by the management node;

discovering one or more cloud nodes, with the manager node, by receiving a reply frame from one or more of the undiscovered cloud nodes;

requesting, with the manager node, storage device specific information from the discovered one or more cloud nodes, wherein storage devices are communicatively connected to each respective one or more cloud nodes;

logging, with the manager node, the storage device specific information within a local network device map; and

sending, with the manager node, the network device map to a network manager, the network manager querying the storage device specific information to determine whether to enable storage devices associated with the storage device specific information within the cloud network.

2. The method of claim 1, further comprising:

logging, with the manager node, cloud node specific information within the local network device map.

3. The method of claim 1, further comprising:

enabling, with the network manager, one or more storage devices associated with the storage device specific information within the cloud network;

mapping, with the manager node, the enabled storage devices to the discovered cloud nodes, wherein the mapping allows the discovered cloud nodes to utilize the enabled storage devices as networked storage.

4. The method of claim 1, wherein emulating the plurality of cloud nodes further comprises:

emulating a Layer 1 cloud node by broadcasting a plurality of frames each comprising a Well Known MAC Address upon each virtual local area network (VLAN).

5. The method of claim 1, wherein emulating the plurality of cloud nodes further comprises:

emulating a Layer 2.5 cloud node by broadcasting a plurality of frames each comprising a Well Known MAC Address or a Well Known IP Address upon each virtual local area network (VLAN) and upon each SubNet.

6. The method of claim 1, wherein emulating the plurality of cloud nodes further comprises:

emulating a Layer 3 or higher cloud node by broadcasting a plurality of frames each comprising a Well Known MAC Address upon each virtual local area network (VLAN), broadcasting a plurality of packets upon each VLAN and each SubNet each packet comprising a Well Known IP Address or a Well Known Port.

7. The method of claim 1, wherein emulating the plurality of cloud nodes further comprises:

emulating a Fibre Channel storage area network (SAN) cloud node by joining the Fibre Channel fabric and obtaining a domain identifier and sending a Login to non initiator Fibre Channel SAN cloud nodes.

8. The method of claim 1, wherein the manager node is the network manager.

9. The method of claim 1, further comprising:

displaying a interface of a management application, with the network manager; and

receiving input via the interface to determine whether to enable the storage devices.

10. A computer program product for Ethernet protocol independent storage device discovery, the computer program product comprising a computer readable storage medium having program instructions embodied therewith, the program instructions readable to cause a manager node to:

emulate a plurality of undiscovered cloud nodes within a cloud network by broadcasting a plurality of data frames according to respective different Ethernet protocols to each of the plurality of undiscovered cloud nodes, each of the plurality of undiscovered cloud nodes operable within the cloud network according to one Ethernet protocol upon being discovered by the management node;

discover one or more cloud nodes by receiving a reply frame from one or more of the undiscovered cloud nodes;

request storage device specific information from the discovered one or more cloud nodes, wherein storage devices are communicatively connected to each respective one or more cloud nodes;

log the storage device specific information within a local network device map; and

send the network device map to a network manager, the network manager querying the storage device specific information to determine whether to enable storage devices associated with the storage device specific information within the cloud network.

11. The computer program product of claim 10, wherein the program instructions further cause the manager node to:

log cloud node specific information within the local network device map.

12. The computer program product of claim 10, wherein the program instructions further cause the manager node to:

enable one or more storage devices associated with the storage device specific information within the cloud network;

map the enabled storage devices to the discovered cloud nodes, wherein the mapping allows the discovered cloud nodes to utilize the enabled storage devices as networked storage.

13. The computer program product of claim 10, wherein program instructions for emulating the plurality of cloud nodes further cause the manager node to:

emulate a Layer 1 cloud node by broadcasting a plurality of frames each comprising a Well Known MAC Address upon each virtual local area network (VLAN).

14. The computer program product of claim 10, wherein program instructions for emulating the plurality of cloud nodes further cause the manager node to:

emulate a Layer 2.5 cloud node by broadcasting a plurality of frames each comprising a Well Known MAC Address or a Well Known IP Address upon each virtual local area network (VLAN) and upon each SubNet.

15. The computer program product of claim 10, wherein program instructions for emulating the plurality of cloud nodes further cause the manager node to:

emulate a Layer 3 or higher cloud node by broadcasting a plurality of frames each comprising a Well Known MAC Address upon each virtual local area network (VLAN), broadcasting a plurality of packets upon each VLAN and each SubNet each packet comprising a Well Known IP Address or a Well Known Port.

16. The computer program product of claim 10, wherein program instructions for emulating the plurality of cloud nodes further cause the manager node to:

emulate a Fibre Channel storage area network (SAN) cloud node by joining the Fibre Channel fabric and obtaining a domain identifier and sending a Login to non initiator Fibre Channel SAN cloud nodes.

17. The computer program product of claim 10, wherein the program instructions further cause the manger node to:

display an interface of a management application; and

receive input via the interface to determine whether to enable the storage devices.

18. A data handling network comprising:

a network manager and a plurality of undiscovered cloud nodes communicatively connected to a manager node by a cloud network, each undiscovered cloud node communicatively connected to one or more storage devices and each undiscovered cloud node operable within the cloud network according to one Ethernet protocol upon being discovered by the management node,

wherein the management node emulates the plurality of undiscovered cloud nodes by broadcasting a plurality of data frames according to respective different Ethernet protocols to each of the plurality of discovered cloud nodes, discovers one or more of the plurality of undiscovered cloud nodes by receiving a reply frame from one or more of the undiscovered cloud nodes, request storage device specific information from the discovered one or more cloud nodes, log the storage device specific information within a local network device map, and send the network device map to the network manager, wherein the network manager queries the storage device specific information to determine whether to enable storage devices associated with the storage device specific information within the cloud network.

19. The data handling network of claim 18 wherein upon the enablement of the storage devices by the network manager, the management node maps the enabled storage devices to the discovered cloud nodes to allow the discovered cloud nodes to utilize the enabled storage devices as networked storage.

20. The data handling network of claim 18, wherein the manager node emulating the plurality of cloud nodes further comprises:

emulate a Layer 1 cloud node by broadcasting a plurality of frames each comprising a Well Known MAC Address upon each virtual local area network (VLAN);

emulate a Layer 2.5 cloud node by broadcasting a plurality of frames each comprising a Well Known MAC Address or a Well Known IP Address upon each virtual local area network (VLAN) and upon each SubNet;

emulate a Layer 3 or higher cloud node by broadcasting a plurality of frames each comprising a Well Known MAC Address upon each virtual local area network (VLAN), broadcasting a plurality of packets upon each VLAN and each SubNet each packet comprising a Well Known IP Address or a Well Known Port; and

emulate a Fibre Channel storage area network (SAN) cloud node by joining the Fibre Channel fabric and obtaining a domain identifier and sending a Login to non initiator Fibre Channel SAN cloud nodes.