EXTERNAL ACCESS OF INTERNAL SAS TOPOLOGY IN STORAGE SERVER
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United States of America Patent
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Issued Date -
Sep 18, 2014
app pub date -
Jun 28, 2013
filing date -
Mar 15, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The SAS expander PCBA is partitioned to allow SAS lanes to be externalized, allowing for a x4 wide port external access into each of the two primary SAS expander modules and each of the two secondary SAS expander modules. This configuration allows for a single host x8 external HBA connection to tunnel into the storage array by connecting into either the primary or secondary x4 wide ports. A second host may connect to the alternate connection if desired. This configuration may also lend itself to allow up to four hosts to access the internal SAS topology of the Enclosure. This configuration may also lend itself to connecting the primary and secondary SAS expander modules together in applications that require an SAS expander to see more storage device arrays than would normally be confined to a typical SAS expander module.
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