Automated selection of functions to reduce storage capacity based on performance requirements

摘要

A plurality of functions to configure a unit of a storage volume is maintained, wherein each of the plurality of functions, in response to being applied to the unit of the storage volume, configures the unit of the storage volume differently. Statistics are computed on growth rate of data and access characteristics of the data stored in the unit of the storage volume. A determination is made as to which of the plurality of functions to apply to the unit of the storage volume, based on the computed statistics.

主权项

1. A system, comprising:
a memory; and a processor coupled to the memory, wherein the processor performs operations, the operations comprising: maintaining a plurality of functions to configure a unit of a storage volume, wherein each of the plurality of functions, in response to being applied to the unit of the storage volume, configures the unit of the storage volume differently; computing statistics on growth rate of data and access characteristics of the data stored in the unit of the storage volume; and determining which of the plurality of functions to apply to the unit of the storage volume, based on the computed statistics, wherein the plurality of functions includes full allocation, thin provisioning, data compression, and data deduplication in a decreasing order of performance in terms of performing operations on the unit of the storage volume, and in an increasing order of efficiency in terms of storage requirements in the unit of the storage volume, wherein: a new unit is initially provisioned as fully allocated and does not use thin provisioning, data compression or data deduplication; and based on the computed statistics, migrating the new unit to use thin provisioning, data compression, or data deduplication, wherein the computed statistics include determining a rate at which write operations are performed on the unit of the storage volume and an available amount of unused space on the unit of the storage volume, the operations further comprising: applying thin provisioning to the unit of the storage volume, in response to determining that the rate at which write operations are performed on the unit of the storage volume does not exceed a predetermined rate of write operations and the available amount of unused space on the unit of the storage volume exceeds a predetermined threshold.