Electrical computers and digital processing systems: memory – Address formation – Address mapping
Reexamination Certificate
2005-04-12
2005-04-12
Sparks, Donald (Department: 2187)
Electrical computers and digital processing systems: memory
Address formation
Address mapping
C711S206000, C711S209000, C709S216000, C709S217000
Reexamination Certificate
active
06880062
ABSTRACT:
A Virtual Storage Server is provided for transferring data between a source storage device and one or more destination storage devices. A write command is issued to the one or more destinations for an amount of data. In response, one or more Transfer Ready Responses are returned indicating the amount of data the destinations are prepared to receive. The Virtual Storage Server then sends a read command to the source for an amount of data based on the amounts of data in the Transfer Ready Responses. The data is then transferred from the source storage device through the Virtual Storage Server to the one or more destination storage devices. Because data is transferred only in amounts that the destination is ready to receive, the Virtual Storage Server does not need a large buffer, and can basically send data received at wire speed. This process continues until the amount of data in the write command is transferred to the one or more destination storage devices.
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Ibrahim Rahim
Ng Chan
Nguyen Tuan
Tran Nghiep
Candera, Inc.
Peugh Brian R.
Sparks Donald
Townsend and Townsend / and Crew LLP
Young Brian N.
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