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Data storage devices having ip capable partitions

  • US 20040215688A1
  • Filed: 03/25/2004
  • Published: 10/28/2004
  • Est. Priority Date: 11/12/2002
  • Status: Active Grant
First Claim
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1. A storage device having a first type of media logically split into a first partition directly addressed by a first IP address and a second partition directly addressed by a second IP address that is distinct from the first IP address, wherein:

  • the storage device is adapted to receive and process datagrams comprising a command field, a logical block address field, a data block field, a token field, and no more than 30 additional bytes encapsulated within the data portion of an IP packet, and the data block field of such datagrams is sized to correspond to a set block size of the storage device;

    the storage device is adapted to associate a first name provided to it by an external device with the first partition and to associate a second name provided to it by an external device with the second partition, wherein the names are partition identifiers that are not network addresses;

    the device is adapted to obtain the first and second IP addresses from an address server upon initialization of the storage device, and is adapted to allow the obtained IP addresses to change whenever the storage device is initialized while maintaining the associations between provided names and partitions;

    the storage device is adapted to obtain an IP address for a partition at least in part by providing the name associated with the partition to the address server; and

    the storage device adapted to support multicast spanning and mirroring at least in part by being adapted to allow an external device to use a single multicast IP to access at least two partitions of the storage device.

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