Electrical computers and digital data processing systems: input/ – Input/output data processing – Transfer direction selection
Reexamination Certificate
2007-09-30
2009-12-01
Peyton, Tammara (Department: 2182)
Electrical computers and digital data processing systems: input/
Input/output data processing
Transfer direction selection
C710S006000, C710S033000, C711S100000, C711S162000, C709S203000, C709S205000, C709S213000, C709S216000
Reexamination Certificate
active
07627699
ABSTRACT:
A system employing asymmetric distributed block virtualization includes a volume server, a plurality of volume clients, and one or more physical block devices. The volume server aggregates storage in the physical block devices into a logical volume and makes the logical volume accessible to the volume clients for input/output (I/O) operations. In order to manage different I/O access requirements (such as read-only access versus read-write access) of the volume clients, the volume server maintains a different I/O access policy for each volume client to control the kinds of input/output operations that the volume client is allowed to perform on the logical volume.
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Arumugham Kalaivani
Dhavale Poonam
Huang Shie-Rei
Karr Ronald S.
Kiselev Oleg
Meyertons Hood Kivlin Kowert & Goetzel P.C.
Peyton Tammara
Symantec Operating Corporation
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