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Storage device and system for providing communications buffer reservation function

  • US 6,973,555 B2
  • Filed: 03/16/2004
  • Issued: 12/06/2005
  • Est. Priority Date: 10/14/2003
  • Status: Expired due to Fees
First Claim
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1. A storage device communicating with a host computer and another storage device through a network, said storage device comprising:

  • an available buffer including a plurality of memory buffers;

    an in-use buffer including a plurality of memory buffers already allocated as memory buffers dedicated for communications;

    notification means for giving a notice of an available-buffer size to an external inquirer in response to an inquiry made by the external inquirer;

    buffer securing means for taking memory buffers having a reserved-buffer size specified in addition to a buffer-reservation target in a request made by an external requester through the network as a request for a buffer reservation out of said available buffer and reserving said taken memory buffers as a reserved buffer for said buffer-reservation target in response to said request for a buffer reservation based on said reserved-buffer size specified in said request;

    allocation means for allocating said memory buffers of said reserved buffer to said buffer-reservation target to make said allocated memory buffers a part of said in-use buffer in response to a request made by the external requester as a request to start an application; and

    execution means for executing the application communicating by using said in-use buffer allocated by said allocation means.

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