Logical unit mapping in a storage area network (SAN) environment
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United States of America Patent
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N/A
Issued Date -
Mar 7, 2002
app pub date -
Jun 6, 2001
filing date -
Nov 14, 1998
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A system with a RAID controller connected to a plurality of hosts, and having a storage area configurable as a plurality of logical units. The RAID controller stores in an associated memory a table of access rights for the hosts to the logical units. Updates can be provided and additional material can be provided in new memory space that is subsequently made available to the various hosts by providing updated access rights that include the new space. In one embodiment, the present invention also maps the logical unit number from that requested by the host to an actual number used in the RAID subsystem.
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