Patent ID: 9335948
Filing Date: 2016-05-10
CPC Classification: G06F

Claim Text:
1. A method of enabling access to tiered shared storage, the method comprising the steps of: establishing a first set of storage policies identifying minimal allocation values for storage group access to at least a highest performing storage tier of tiered shared storage resources, a sum of the minimal allocation values exceeding the capacity of the highest performing storage tier; establishing a second set of storage policies identifying maximal allocation values for storage group access to tiered shared storage resources; establishing priority weights for storage groups; upon occurrence of contention for access to at the highest performing storage tier of the tiered shared storage, using the priority weights to adjust storage demands of the storage groups for access to the highest performing storage tier whenever the total minimal demand of all storage groups for access to the highest performing storage tier is greater than a capacity of the highest performing storage tier to establish minimum allocation values for storage groups in the highest performing storage tier, the minimum allocation values being different than the minimal allocation values established in the first set of storage policies; using the minimum allocation values to set threshold values for the storage groups to enable at least partial access by each storage group to the highest performing storage tier; and allocating storage resources other than the minimum allocation values using the second set of storage policies.