Remote mirroring with write ordering sequence generators
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United States of America Patent
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-
Nov 9, 2004
Grant Date -
Jun 5, 2003
app pub date -
May 17, 2002
filing date -
Nov 30, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A storage system and method are provided and feature a highly available remote copying function and site switching capability. A redundant constitution to a sequencing generator for producing sequence information is provided. In a remote copy configuration, a sequence generator is provided at the copy destination site, in addition to the copy source site. The sequence generators are configured for redundant operation for site switching.
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