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US 2013/0173859 A1Published application
Logically Partitioning Remote Virtual Library Extensions for Use in Disaster Recovery of Production Data
AssigneeOracle International Corporation
InventorsRoland N. Gorrell, Frank Bochula, Tom Dawdy, Jeff Johnson, Vinnie Byrne
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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.
Claims20
A method for use in disaster recovery (DR), comprising:
- storing a first production dataset in one or more virtual tape volumes (VTVs) of a virtual tape library (VTL) at a production site, wherein the production site VTL comprises a first tier of disk storage having a first access time and a first capacity;
- migrating copies of the one or more VTVs storing the first production dataset from the production site VTL to a first of a plurality of logical partitions of a virtual library extension (VLE) at a DR site over at least one network, wherein the DR site VLE comprises a second tier of disk storage having a second access time and a second capacity, and wherein at least one of:
- a) the second access time is slower than the first access time, and b) the second capacity is greater than the first capacity;
- and
- migrating copies of the one or more VTVs storing the first production dataset from the production site VTL to a local storage system at the production site.
2 more elements
A system, comprising:
- a processing module;
- and
- a memory module logically connected to the processing module and comprising a set of computer readable instructions executable by the processing module 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, wherein the VTL comprises a first tier of disk storage having a first access time and a first capacity, wherein the VLE comprises a second tier of disk storage having a second access time and a second capacity, and wherein at least one of:
- a) the second access time is slower than the first access time, and b) the second capacity is greater than the first capacity;
- 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 VLE over the at least one network.
6 more elements
A method, comprising:
- 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 production data from a virtual tape library (VTL) of a production site over at least one network, wherein the VTL comprises a first tier of disk storage having a first access time and a first capacity, wherein the VLE comprises a second tier of disk storage having a second access time and a second capacity, and wherein at least one of:
- a) the second access time is slower than the first access time, and b) the second capacity is greater than the first capacity;
- and
- second receiving, in a second of the plurality of logical partitions of the DR site VLE, one or more VTVs storing production data from the production site VTL over the at least one network, wherein the second receiving occurs after declaration of a DR procedure between the production site and the DR site.
1 more element
Dependencies are inferred from the claim text.