Logically partitioning remote virtual library extensions for use in disaster recovery of production data
First Claim
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1. A method for use in disaster recovery (DR), comprising:
- migrating copies of one or more virtual tape volumes (VTVs) that store a first production dataset from a virtual tape library (VTL) of a production site to a first of a plurality of logical partitions of a virtual library extension (VLE) at a DR site over at least one network;
declaring a DR procedure at the production site; and
migrating copies of VTVs storing a second production dataset generated after the DR procedure declaration from the production site VTL to a second of the plurality of logical partitions of the DR site VLE, wherein the first production dataset was generated before the DR procedure declaration.
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Abstract
Systems and methods that make use of logical partitions of a second tier of disk storage at a disaster recovery (DR) site remote from a production site as part of a DR setup to advantageously reduce disruption to production site data production operations during DR procedures while providing for the substantially immediate recall or retrieval of data previously migrated to the remote second tier of disk storage.
35 Citations
20 Claims
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1. A method for use in disaster recovery (DR), comprising:
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migrating copies of one or more virtual tape volumes (VTVs) that store a first production dataset from a virtual tape library (VTL) of a production site to a first of a plurality of logical partitions of a virtual library extension (VLE) at a DR site over at least one network; declaring a DR procedure at the production site; and migrating copies of VTVs storing a second production dataset generated after the DR procedure declaration from the production site VTL to a second of the plurality of logical partitions of the DR site VLE, wherein the first production dataset was generated before the DR procedure declaration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system, comprising:
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a processor; and a memory logically connected to the processor and comprising a set of computer readable instructions executable by the processor to; migrate one or more virtual tape volumes (VTVs) storing a first production dataset from a virtual tape library (VTL) at a production site to a first of a plurality of logical partitions of a virtual library extension (VLE) at a disaster recovery (DR) site over at least one network; declare a start to a DR procedure at the production site; perform at least one of editing and creating at least one production dataset at the production site after declaration of the DR procedure; and migrate one or more VTVs storing the edited and/or created at least one production dataset from the VTL to a second of the plurality of logical partitions of the DR site VLE over the at least one network. - View Dependent Claims (14)
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15. A method, comprising:
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first receiving, in a first of a plurality of logical partitions of a virtual library extension (VLE) at a disaster recovery (DR) site, one or more virtual tape volumes (VTVs) storing first production data from a virtual tape library (VTL) of a production site over at least one network; and second receiving, in a second of the plurality of logical partitions of the DR site VLE, one or more VTVs storing second production data from a VTL of the DR site, wherein the second receiving occurs after declaration of a DR procedure between the production site and the DR site. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification