Performance isolation for storage clouds

A system for providing performance isolation for storage clouds, comprising:

• a bus;
• a processor coupled to the bus;
• and
• a memory medium coupled to the bus, the memory medium comprising instructions to:
• group workloads across a storage cloud architecture into clusters;
• create a performance isolation domain for each of the clusters, each of the performance isolation domains comprising a set of data stores associated with a set of storage subsystems and a set of data paths that connect the set of data stores to a set of clients;
• and
• provide performance isolation among a set of layers of the performance isolation domains;
• pool data stores from separate performance isolation domains into separate pools;
• assign the pools to device adapters, RAID controllers, and the set of storage subsystems according to a formulaic calculation comprising:
• W
• c
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• i
• ∈
• c
• ⁢
• W
• i
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• ∈
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• wherein wil is an average load imposed by 1 GB of a workload ‘i’, si is a size of the workload ‘i’, and wcl is the average load imposed by 1 GB of workload cluster ‘c’.

A computer program product for providing performance isolation for storage clouds, the computer program product comprising a non-transitory computer readable storage medium, and program instructions stored on the non-transitory computer readable storage medium, to:

• group workloads across a storage cloud architecture into clusters;
• create a performance isolation domain for each of the clusters, each of the performance isolation domains comprising a set of data stores associated with a set of storage subsystems and a set of data paths that connect the set of data stores to a set of clients;
• provide performance isolation among a set of layers of the performance isolation domains;
• pool data stores from separate performance isolation domains into separate pools;
• assign the pools to device adapters, RAID controllers, and the set of storage subsystems according to a formulaic calculation comprising:
• W
• c
• l
• =
• ∑
• i
• ∈
• c
• ⁢
• W
• i
• l
• ·
• s
• i
• ∑
• i
• ∈
• c
• ⁢
• s
• i
• wherein wil is an average load imposed by 1 GB of a workload ‘i’, si is a size of the workload ‘i’, and wcl is the average load imposed by 1 GB of workload cluster ‘c’.

A method for deploying a system for providing performance isolation for storage clouds, comprising:

• providing a computer infrastructure being operable to:
• group workloads across a storage cloud architecture into clusters;
• create a performance isolation domain for each of the clusters, each of the performance isolation domains comprising a set of data stores associated with a set of storage subsystems and a set of data paths that connect the set of data stores to a set of clients;
• provide performance isolation among a set of layers of the performance isolation domains;
• pool data stores from separate performance isolation domains into separate pools;
• assign the pools to device adapters, RAID controllers, and the set of storage subsystems according to a formulaic calculation comprising:
• W
• c
• l
• =
• ∑
• i
• ∈
• c
• ⁢
• W
• i
• l
• ·
• s
• i
• ∑
• i
• ∈
• c
• ⁢
• s
• i
• wherein wil is an average load imposed by 1 GB of a workload ‘i’, si is a size of the workload ‘i’, and wcl is the average load imposed by 1 GB of workload cluster ‘c’.