Performance capability adjustment of a storage volume

A computer system comprising:

• one or more processors;
• a memory coupled to at least one of the processors;
• and
• a set of computer program instructions stored in the memory and executed by at least one of the processors to perform a method comprising:
• determining a current storage volume to store data having a workload pattern, wherein a cycle of the workload pattern includes a hot period and a cold period;
• determining a time limit window of the current storage volume, wherein the time limit window is a shortest time window within which performance capability of the current storage volume is to be kept without adjustment;
• determining a low performance period of the current storage volume corresponding to the cold period;
• and
• in response to the low performance period being greater than or equal to the time limit window, reducing the performance capability of the current storage volume during the low performance period.

A computer program product comprising a computer readable storage medium having program instructions embodied therewith, the program instructions being executable by a computer to cause the computer to perform a method comprising:

• determining a current storage volume to store data having a workload pattern, wherein a cycle of the workload pattern includes a hot period and a cold period;
• determining a time limit window of the current storage volume, wherein the time limit window is a shortest time window within which performance capability of the current storage volume is to be kept without adjustment;
• determining a low performance period of the current storage volume corresponding to the cold period;
• and
• in response to the low performance period being greater than or equal to the time limit window, reducing the performance capability of the current storage volume during the low performance period.