Optimization of data migration between storage mediums

In one embodiment, pursuant to migrating the data from the first to the second storage medium, the data is allocated to the second storage medium while retaining an allocation of the data in the first storage medium. If the data is migrated from the second storage medium back to the first storage me...

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Hauptverfasser: ANDERSON DALE H, VALVERDE DAVID V, MCCAIN BRIAN S, PEIPELMAN JASON L, GROSECLOSE, JR. MICHAEL R, JENNAS, II PAUL A, JUAREZ LARRY, MONTGOMERY DAVID, SORENSON TODD C, DOATMAS PHILIP M, RHOADES JOSHUA M
Format: Patent
Sprache:eng
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Zusammenfassung:In one embodiment, pursuant to migrating the data from the first to the second storage medium, the data is allocated to the second storage medium while retaining an allocation of the data in the first storage medium. If the data is migrated from the second storage medium back to the first storage medium, the data is pointed to the allocation of the data in the first storage medium to alleviate data movement from the second storage medium to the first storage medium. If the allocation of the data in the first storage medium is determined to be needed for other data, the allocation of the data in the first storage medium is freed.