Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2007-06-05
2007-06-05
Baderman, Scott (Department: 2114)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C714S016000, C714S018000, C714S006130
Reexamination Certificate
active
10724670
ABSTRACT:
Recovering data provided in chunks to a plurality of secondary storage devices includes, for each of the secondary storage devices, discarding data corresponding chunks for which all data thereof has not been received, and, for each of the secondary storage devices, restoring a chunk of data thereto where all of the chunks of data restored to the plurality of secondary storage devices correspond to a particular transmission cycle of primary storage devices that provide data to the plurality of secondary storage devices. Recovering data may also include, following discarding and prior to restoring, for each of the plurality of secondary storage devices having two different chunks, waiting for external intervention to indicate whether to restore a particular one of the chunks. The external intervention may be provided by a host computer that is proximate to at least one of the secondary storage devices or may be provided by a host computer that is proximate to at least one of the primary storage computers.
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Article re: Network Appliance™ SnapMirror® Software ; found on Network Appliance, Inc. web page; www.netapp.com/ftp/snapmirror.pdf.
Halstead Mark J.
Heasley Kevin C.
Lecrone Douglas E.
Longinov Vadim
Meiri David
Baderman Scott
EMC Corporation
Muirhead & Saturnelli LLC
Schell Joseph
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