Transaction generator for initialization, rebuild, and...

Details Transaction generator for initialization, rebuild, and... Transaction generator for initialization, rebuild, and...

2006-12-26

2006-12-26

Shah, Sanjiv (Department: 2185)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

Reexamination Certificate

active

07155568

ABSTRACT:
A transaction generator generates memory transactions identical to processor memory transactions to initialize, rebuild, and verify memory added or replaced during operation of a computer system configured for RAID memory. The transactions read and rewrite the correct value for replaced memory and write a known good value for added memory. Memory writes are verified by a read after the write transaction. The transaction generator is a state machine. A first counter is used for holding memory addresses of the transactions, automatically incrementing after each transaction. A second counter can throttle the generation of transactions by controlling the incrementation speed of the first counter. Transactions generated by the transaction generator have a transaction identifier, selected from a pool of available transaction identifiers. The transactions can complete out of order.

REFERENCES:
patent: 6098132 (2000-08-01), Olarig et al.
patent: 6223301 (2001-04-01), Santeler et al.
patent: 6505305 (2003-01-01), Olarig
patent: 6662278 (2003-12-01), Kahn et al.
patent: 6775756 (2004-08-01), Thusoo et al.
patent: 2002/0194427 (2002-12-01), Hashemi

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