Disk drive partitioning methods and apparatus

• US 7,870,271 B2
• Filed: 10/03/2005
• Issued: 01/11/2011
• Est. Priority Date: 11/12/2002
• Status: Expired due to Fees

• Current Assignee: ServStor Technologies, LLC (IP Investments Group LLC)
• Original Assignee: Rateze Remote Mgmt. L.L.C. (Intellectual Ventures LLC)
• Inventors: Ludwig, Thomas, Babbitt, William, Hanan, Thomas, Frank, Charles
• Primary Examiner(s): Najjar; Saleh
• Assistant Examiner(s): Henry; Marie Georges
• Application Number:
  US11/243,143
• Publication Number:
  US 20060026258A1
• Time in Patent Office: 1,926 Days
• Field of Search: 709/201, 709/203, 709211-217, 709/223, 709/229, 709/238, 711/209
• US Class Current: 709/229
• CPC Class Codes: H04L 12/28 characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks] wireless communication networks H04W ; arrangements for dividing the transmission path H04W40/00
• CPC Class Codes: H04L 12/2803 Home automation networks
• CPC Class Codes: H04L 12/2832 Interconnection of the control functionalities between home networks single bridge functionality H04L12/4625
• CPC Class Codes: H04L 12/2836 Protocol conversion between an external network and a home network controlling appliance services of a home automation network from a device located outside the home and the home network H04L12/2818; protocol conversion H04L69/08; adaptation of digital video signals for transport over a specific home network H04N7/24
• CPC Class Codes: H04L 12/46 Interconnection of networks
• CPC Class Codes: H04L 12/4616 LAN interconnection over a LAN backbone
• CPC Class Codes: H04L 12/66 Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
• CPC Class Codes: H04L 41/00 Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
• CPC Class Codes: H04L 61/00 Network arrangements, protocols or services for addressing or naming
• CPC Class Codes: H04L 61/35 involving non-standard use of addresses for implementing network functionalities, e.g. coding subscription information within the address or functional addressing, i.e. assigning an address to a function
• 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]
• CPC Class Codes: H04L 69/16 Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
• CPC Class Codes: H04L 69/161 Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

A storage device has partitions that are separately addressed by distinct IP addresses. This allows direct access of the partitions, on a peer-to-peer basis, by any other device that can communicate using IP. Preferred storage devices support spanning between or among partitions of the same device, as well as between or among different storage devices. Both multicast and proxy spanning are contemplated. Combinations of the inventive storage devices with each other, and with prior art storage devices are contemplated, in all manner of mirroring and other arrangements. In still other aspects of the invention, a given storage device can comprise one or more types of media, including any combination of rotating and non-rotating media, magnetic and optical, and so forth.

Claims

1. An apparatus comprising:

a storage medium;

a network interface configured to communicatively couple the apparatus to a network; and

a storage element communicatively coupled to the storage medium and the network interface and configured

to receive, via the network interface, a request for a partition allocation, the request including a name;

to create and allocate a partition of the storage medium based at least in part on the request;

to obtain, from a dynamic host configuration protocol (DHCP) server, an internet protocol (IP) address for the partition of the storage medium; and

to associate the name with the IP address.

2. The apparatus of claim 1, wherein the request further includes a requested size of the partition allocation.

3. The apparatus of claim 1, wherein the request further includes a token and one or more authentication parameters to secure subsequent access to the partition.

4. The apparatus of claim 1, wherein the storage element is further configured

to receive, from a requester via the network interface, a release request;

and

to release the partition based at least in part on the release request.

5. The apparatus of claim 4, wherein the requester is a network element.

6. The apparatus of claim 4, wherein the storage element is configured to release the partition by being further configured

to remove any residual data in the partition;

to request the DHCP server to release the IP address; and

to place the partition into an allocation pool for a future allocation.

9. The apparatus of claim 1, wherein, prior to receiving the request, the storage element is configured

to receive, from a network element via the network interface, a broadcast find request;

and

to provide the network element with a root node IP address of the storage medium based at least in part on the broadcast find request.

10. The apparatus of claim 1, wherein the storage element is configured to operate independently of an operating system.

7. The apparatus of 1, wherein the storage element is further configured

to receive, from a requester via the network interface, a broadcast name resolution request including a requested name to resolve;

to determine that the requested name is the name; and

to respond, to the requester via the network interface, with the IP address.

8. The apparatus of claim 7, wherein the requester is a network element.

11. A method comprising:

receiving, from a network element via a network interface, a request for a partition allocation, the request including a name;

creating and allocating a partition of a storage medium based at least in part on the received request;

obtaining, from a dynamic host configuration protocol (DHCP) server, an internet protocol (IP) address for the partition of the storage medium; and

associating the name with the IP address.

12. The method of claim 11, further comprising:

securing access to the allocated partition based at least in part on a token and one or more authentication parameters received in the request.

13. The method of claim 11, further comprising:

receiving, from a requester via the network interface, a release request; and

releasing the partition based at least in part on the release request.

14. The method of claim 13, wherein said releasing the partition comprises:

removing any residual data in the partition;

requesting the DHCP server to release the IP address; and

placing the partition into an allocation pool for a future allocation.

15. The method of claim 14, further comprising:

receiving, from the requester via the network interface, a broadcast name resolution request including a requested name to resolve;

determining that the requested name is the name; and

responding, to the requester via the network interface, with the IP address.

16. An apparatus comprising:

a network interface; and

a network element communicatively coupled to the network interface and configured

to transmit, to a storage element via the network interface, a request for a partition of a storage medium associated with the storage element to be created and allocated to the network element, the request including a name to be used to identify a partition created in reponse to the request; and

to receive, from the storage element via the network interface, an internet protocol (IP) address to associate with the name.

17. The apparatus of claim 16, wherein the network interface is further configured to transmit, prior to transmitting the request, a broadcast message including the name to determine that the name is unique to all recipients of the broadcast message.

18. The apparatus of claim 16, wherein the request further includes a token and the network element is further configured to provide the token to another network element to enable the another network element to access a partition created in response to the request.

19. The apparatus of claim 16, wherein the network element is further configured

to transmit, to the storage element via the network interface, a resource availability request;

and

to receive, from the storage element via the network interface, a resource availability response indicating an amount of storage available on the storage medium.

20. An apparatus comprising:

one or more storage media; and

a storage element communicatively coupled to the one or more storage media and configured

to partition the one or more storage media into a plurality of partitions; and

to obtain, from a dynamic host configuration protocol (DHCP) server, a unique internet protocol (IP) address for each partition of the plurality of partitions, and a multicast IP address for at least two partitions of the plurality of partitions.

21. The apparatus of claim 20, wherein the at least two partitions include a spanned set of logical addresses.

22. The apparatus of claim 20, wherein the storage element is further configured to receive one or more requests from at least one network element and to partition the one or more storage media and to obtain the unique IP addresses based at least in part on the one or more requests.

23. An apparatus comprising:

a storage medium; and

a storage element communicatively coupled to the storage medium and configured

to partition the storage medium into a plurality of partitions; and

to obtain, from a dynamic host configuration protocol (DHCP) server, a first unique internet protocol (IP) address for a first partition of the plurality of partitions and a second unique IP address for the first partition.

24. The apparatus of claim 23, wherein the second unique IP address is associated with a logical address that spans the first partition and one or more other partitions.

25. The apparatus of claim 23, wherein the storage element is further configured to receive one or more requests from at least one network element and to partition the storage medium and to obtain the first unique IP address and the second unique IP address based at least in part on the one or more requests.