Method for snooping RAID 1 write transactions by a storage...

Details Method for snooping RAID 1 write transactions by a storage... Method for snooping RAID 1 write transactions by a storage...

2006-07-18

2006-07-18

Peugh, Brian R. (Department: 2187)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C711S146000, C711S147000

Reexamination Certificate

active

07080198

ABSTRACT:
To implement a RAID 1 transaction, an initiator sends a single command, i.e., either a single read command, or a single write command, over a common I/O bus to a primary target device. A mirror target device snoops the common I/O bus and upon detecting the single command directed to the primary target device, effectively performs in the same manner as if the command had been directed to the mirror target device. Hence, a single command is used to effectuate a mirrored transaction.

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patent: 6775794 (2004-08-01), Horst et al.
patent: 2002/0016827 (2002-02-01), McCabe et al.

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