Electrical computers and digital processing systems: memory – Storage accessing and control – Memory configuring
Reexamination Certificate
2004-12-09
2011-12-06
Alsip, Michael (Department: 2186)
Electrical computers and digital processing systems: memory
Storage accessing and control
Memory configuring
C711S147000, C711S153000, C711S204000, C709S203000, C709S217000, C709S229000, C707S821000
Reexamination Certificate
active
08074041
ABSTRACT:
An apparatus, system, and method are disclosed for managing storage space allocation. The apparatus includes a recognizing module, a reserving module, and a managing module. The recognizing module recognizes a trigger event at a client of the data storage system. The reserving module reserves logical units of space for data storage. The management module manages the logical units of space at the client. Such an arrangement provides for distributed management of storage space allocation within a storage area network (SAN). Facilitating client management of the logical units of space in this manner may reduce the number of required metadata transactions between the client and a metadata server and may increase performance of the SAN file system. Reducing metadata transactions effectively lowers network overhead, while increasing data throughput.
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Clark Thomas Keith
Dwivedula Ramakrishna
Raphael Roger C.
Rees Robert Michael
Alsip Michael
International Business Machines - Corporation
Kunzler Needham Massey & Thorpe
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