Adaptive data migration
AssigneePure Storage, Inc.
InventorsRobert Lee, Svitlana Tumanova, Boris Feigin, Taher Vohra
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Abstract
A method for elective garbage collection in storage memory, performed by a storage system is provided. The method includes monitoring storage space available in each of a plurality of portions of storage memory of a storage system and detecting an imbalance in the storage space available across the plurality of portions of storage memory. The method includes performing garbage collection to rebalance the space available across the plurality of portions of storage memory, responsive to the detecting. A storage system is also provided.
Claims20
A method for elective garbage collection in storage memory, performed by a storage system, comprising:
- selecting between a RAID rebuild and a garbage collection move to perform for data migration, based on detection of an imbalance of available storage space across a plurality of portions of storage memory available, wherein both the RAID rebuild and the garbage collection move are configurable to stripe data across each of the plurality of portions of storage memory.
A tangible, non-transitory, computer-readable media having instructions thereupon which, when executed by a processor, cause the processor to perform a method comprising:
- selecting between a RAID rebuild and a garbage collection move to perform for data migration, based on detection of an imbalance of available storage space across a plurality of portions of storage memory available, wherein both the RAID rebuild and the garbage collection move are configurable to stripe data across each of the plurality of portions of storage memory.
A storage system, comprising:
- one or more processors;
- a plurality of portions of storage memory;
- a storage space detector, configurable to track storage space available in each of the plurality of portions of storage memory;
- and
- a garbage collection module, configurable to rebalance the storage space available across the plurality of portions of storage memory, responsive to identifying an imbalance across the plurality of portions of storage memory based on results from the storage space detector, wherein both the RAID rebuild and the garbage collection move are configurable to stripe data across each of the plurality of portions of storage memory.
Dependencies are inferred from the claim text.