Electrical computers and digital processing systems: memory – Storage accessing and control – Control technique
Reexamination Certificate
2007-06-30
2009-12-08
Elmore, Stephen C (Department: 2185)
Electrical computers and digital processing systems: memory
Storage accessing and control
Control technique
C711S112000, C711S114000, C711S170000, C711S202000, C707S793000
Reexamination Certificate
active
07631155
ABSTRACT:
A container file system is built on a sparse metavolume for enhanced decoupling of logical storage from physical storage and for providing common supplementary storage services for iSCSI block access and for NFS or CIFS file system access. The container file system contains a production file system or iSCSI LUN and may also contain snapshot copies of the production file system or iSCSI LUN. The container file system manages storage space among the production file system or iSCSI LUN and its snapshot copies, and also improves fault containment. The sparse metavolume provides thin provisioning of the container file system. A slice map indicates whether or not each slice of logical storage in the sparse metavolume is provisioned with an associated configured slice of data storage.
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Bono Jean-Pierre
Clark Morgan A.
Godbole Saurabh
Hayden John M.
Mullick Sachin
Auchterlonie Richard
Elmore Stephen C
EMC Corporation
Novak Druce & Quigg LLP
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