Storage systems including a plurality of solid state drives and management methods thereof
AssigneeSamsung Electronics Co., Ltd.
InventorHeeseok Eun
Life of this patent
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Abstract
Methods of operating storage systems that include a plurality of solid state drives, and the storage systems, are described. For example, a method may include, configuring the plurality of solid state drives into an erasure coding set for applying erasure coding, monitoring a reliability status of each of the plurality of solid state drives, selecting at least one solid state drive whose reliability status is lower than a reference value from among the plurality of solid state drives to exclude the at least one solid state drive from the erasure coding set, and constructing a replication set for applying data protection of a replication method by using the at least one solid state drive excluded from the erasure coding set.
Claims20
A method of operating a storage system, the storage system including a plurality of solid state drives, and the method comprising:
- configuring the plurality of solid state drives into an erasure coding set and applying erasure coding to the erasure coding set;
- monitoring a reliability status of each of the plurality of solid state drives;
- selecting, from among the plurality of solid state drives of the erasure coding set, at least one solid state drive having a reliability status that is lower than a threshold value, and excluding the at least one solid state drive from the erasure coding set;
- and
- constructing a replication set that includes the at least one solid state drive excluded from the erasure coding set and applying a replication method of data protection to the replication set.
A storage system, comprising:
- a plurality of solid state drives;
- and
- a system controller configured to group the plurality of solid state drives in sets and apply data protection to the sets, the sets including a first set in which an erasure coding method is applied to the solid state drives of the first set, and a second set in which a replication method is applied to the solid state drives of the second set,
- wherein the system controller is configured to monitor a reliability status of each of the plurality of solid state drives, and is configured to select at least one of the solid state drives of the first set having a reliability status that is lower than a reference value, exclude the selected at least one solid state drive from the first set, and allocate the selected at least one solid state drive to the second set.
A method of operating a storage system comprising:
- configuring a plurality of solid state drives into a first set and applying a first data protection policy to the first set;
- monitoring a reliability status of each of the plurality of solid state drives of the first set;
- selecting, from among the plurality of solid state drives of the first set, at least one solid state drive having a reliability status that is lower than a threshold value, and excluding the selected at least one solid state drive from the first set;
- and
- configuring a second set that includes the selected at least one solid state drive excluded from the first set and applying a second data protection policy to the second set.
Dependencies are inferred from the claim text.