Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2006-04-18
2006-04-18
Sparks, Donald (Department: 2187)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C714S013000, C714S018000, C714S020000, C709S231000, C709S233000
Reexamination Certificate
active
07032131
ABSTRACT:
Methods and systems for managing disk capacity allocated to a data log in a source data storage system during a merge process are disclosed. Data in the data log may be merged into corresponding data on a destination storage system connected to the source data storage system by at least one communication link. In one embodiment a method comprises maintaining a ratio of merge writes out of the data log to writes from a host computer into the data log within a desired range until the write process reaches a predetermined distance from the end of the data log, and quiescing writes from a host computer into the data log until the data log is fully written to the destination storage system.
REFERENCES:
patent: 5533190 (1996-07-01), Binford et al.
patent: 5721918 (1998-02-01), Nilsson et al.
patent: 5893155 (1999-04-01), Cheriton
patent: 6041423 (2000-03-01), Tsukerman
patent: 6148368 (2000-11-01), DeKoning
patent: 6185663 (2001-02-01), Burke
patent: 6275783 (2001-08-01), Okamura
patent: 6643795 (2003-11-01), Sicola et al.
ENSA-2VersaStorVirtualization Technology, Enterprise Storage Group,Storage Worksby COMPAQ White Paper, Dec. 2001, Compaq Computer Corporation, pp. 1-10.
NCITS T10, Project 1144D, Revision 07a, Nov. 1, 2001, pp. 8-26.
StorageWorks by Compaq Enterprise Virtual Array, QuickSpecs, World Wide- version 5, Feb. 27, 2002, pp. 1-12.
T10/98-203 revision 0, Persistent Reservations, Jul. 7, 1998, pp. 1-20.
ISCSI: ISID and the New Persistent Reservations Proposals, http://www.pdl.cmu.edu/mailinglists/ips/mail/msg07055.html, Mar. 19, 2002, pp. 1-4.
Software Product Description, Compaq SANworks Virtual Replicator-Version 2.0, SPD: 70.41.02, Jun. 5, 2000, pp. 1-5, Compaq Computer Corporation.
Features and Benefits of HSG80 ACS 8.6P Data Replication Manager, Oct. 2001, pp. 1-22, Compaq White Paper, Enterprise Storage Group, Compaq Computer Corporation.
Information Systems—dpANS Fibre Channel Protocol for SCSI, revision 012, Dec. 4, 1995, pp. i-63, American National Standard-draft.
Information Technology- Fibre Channel Protocol for SCSI, second version (FCP-2), Nov. 1, 2001, pp. ii-133, American National Standard-draft.
Elkington, Susan, Enterprise Project, Data Replication Manager Functional Specification for VCS V3 Release, Compaq Computer Corporation, Nov. 30, 3001, pp. 1-68.
Hess, Randy and Korganonkar, Anuja, Enterprise Project, DRM Logging, Compaq Computer Corporation, Nov. 25, 2001, pp. 1-12.
Hoffman, Brian, Enterprise Software Functional Specification V0.10, Compaq Computer Corporation, Jul. 25, 2001, pp. 1-26.
Features and Benefits of HSG80 ACS 8.6P Data Replication Manager, COMPAQ White Paper, Oct. 2001, Enterpris Storage Group, Compaq Computer Corporation, pp. 1-15.
Storage Virtualization and theStorageWorksEnterprise Virtual Array, COMPAQ White Paper, Sep. 2001, Enterprise Storage Array Division Marketing, Compaq Computer Corporation, pp. 1-13.
SCSI-2 Spec—Logical characteristics, http://www.uni-mainz.de/˜koenig/scsi/SCSI2-06.html, Mar. 8, 2002, pp. 3-31.
Understanding Replication in Databases and Distributed Systems, Jul. 13, 1997, Computer Based Learning Unit, University of Leeds, pp. 1-26.
Elkington Susan
Hess Randy
Korgaonkar Anuja
Leveille Jason
Lubbers Clark
Diller Jesse
Hewlett--Packard Development Company, L.P.
Sparks Donald
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