SMR auto-tiering
AssigneeEMC Corporation
InventorsWalter A. O'Brien, Thomas E. Linnell
Life of this patent
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Abstract
A method, computer program product, and computing system for initiating a relocation process to move local data from an SMR-based storage tier within an auto-tiering data system to a different storage tier within the auto-tiering data system. The local data is located within one or more sectors of the SMR-based storage tier. The local data is copied from the SMR-based storage tier to the different storage tier. The one or more sectors of the SMR-based storage tier are unmapped.
Claims20
A computer-implemented method comprising:
- initiating a relocation process to move local data from a Shingled Magnetic Recording (SMR)-based storage tier within an autotiering data system to a different storage tier within the autotiering data system, wherein the local data is located within one or more sectors of the SMR-based storage tier;
- copying the local data from the SMR-based storage tier to the different storage tier;
- and
- un-mapping the one or more sectors of the SMR-based storage by removing a data mapping that points to the local data within the one or more sectors of the SMR-based storage tier, wherein the data mapping is in a shingle translation layer on a swap space.
A computer program product residing on a non-transitory computer readable medium having a plurality of instructions stored thereon which, when executed by a processor, cause the processor to perform operations comprising:
- initiating a relocation process to move local data from a Shingled Magnetic Recording (SMR)-based storage tier within an autotiering data system to a different storage tier within the autotiering data system, wherein the local data is located within one or more sectors of the SMR-based storage tier;
- copying the local data from the SMR-based storage tier to the different storage tier;
- and
- un-mapping the one or more sectors of the SMR-based storage tier by removing a data mapping that points to the local data within the one or more sectors of the SMR-based storage tier, wherein the data mapping is in a shingle translation layer on a swap space.
A computing system including a processor and memory configured to perform operations comprising:
- initiating a relocation process to move local data from a Shingled Magnetic Recording (SMR)-based storage tier within an autotiering data system to a different storage tier within the autotiering data system, wherein the local data is located within one or more sectors of the SMR-based storage tier;
- copying the local data from the SMR-based storage tier to the different storage tier;
- and
- un-mapping the one or more sectors of the SMR-based storage tier by removing a data mapping that points to the local data within the one or more sectors of the SMR-based storage tier, wherein the data mapping is in a shingle translation layer on a swap space.
Dependencies are inferred from the claim text.