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Sub-lun non-deduplicated tier in a CAS storage to reduce mapping information and improve memory efficiency
Sub-lun non-deduplicated tier in a CAS storage to reduce mapping information and improve memory efficiency
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机译:CAS存储中的子LUN非重复数据删除层,以减少映射信息并提高内存效率
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摘要
A method is disclosed for storing data in a storage system, comprising: receiving a write request at the storage system; detecting whether the write request is associated with one of a deduplication tier or a non-deduplication tier of the storage system; when the write request is associated with the deduplication tier of the storage system, storing data associated with the write request in the first portion of the volume and updating a first mapping structure to map the first LBA to at least one first hash digest that is generated based on the data; and when the write request is associated with the non-deduplication tier of the storage system, storing data associated with the write request in the second portion of the volume and updating the first mapping structure to map the first LBA to a second hash digest that is generated based on a second LBA.
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