Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition
Reexamination Certificate
2003-11-04
2009-12-15
Chace, Christian P (Department: 2187)
Electrical computers and digital processing systems: memory
Storage accessing and control
Specific memory composition
C711S004000
Reexamination Certificate
active
07634614
ABSTRACT:
An integrated circuit implementing a storage-shelf router used alone, or in combination with other storage-shelf routers, and in combination with path controller cards, to interconnect the disks within a storage shelf or disk array to a high-bandwidth communications medium through which data is exchanged between the individual disk drives of the storage shelf and a disk-array controller. In various embodiments, the present invention provides virtual disk formatting by a storage shelf router and the storage shelf in which the storage-shelf is included, to external computing entities, such as disk-array controllers and host computers. By providing virtual disk formatting, a storage-shelf router can provide to a disk-array controller, and other external computing entities, the disk-formatting convention expected by the disk-array controller, even though disk drives and other storage systems that do not conform to the expected formatting conventions may be included in the storage shelf and interconnected to a disk-array controller and other external processing entities via an interface provided by a storage-shelf router. Virtual disk formatting, in addition, allows a storage-shelf router to format a disk drive differently from the disk formatting expected by external computing entities, so that the storage-shelf router can transparently include additional information into disk sectors, such as additional error detection and error-correction information.
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Kompella Murthy
Steinmetz Joseph Harold
Wakeley Matthew Paul
Chace Christian P
Olympic Patent Works PLLC
Rutz Jared I
Sierra Logic
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