Method for snooping RAID 1 write transactions by a storage device

Method for snooping RAID 1 write transactions by a storage device

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 targ...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: YOUNG B. ARLEN
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung: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.