Techniques for determining a minimum hardware configuration using performance headroom metrics

A system comprising:

• one or more processors;
• and
• a memory comprising code stored thereon that, when executed, performs a method comprising:
• receiving a request for a new hardware configuration of a data storage system,
• wherein the data storage system has a current configuration and is currently running a first workload W1 with a workload pattern P1 having an associated workload periodicity interval,
• wherein the first workload W1 corresponds to a first input/output (I/O) workload of the data storage system,
• wherein the new hardware configuration is modeled as running an associated second workload W2 with the workload pattern P1 and the associated workload periodicity interval,
• wherein the associated second workload W2 corresponds to an associated second I/O workload of the data storage system;
• and
• wherein the associated second I/O workload is equal to the first I/O workload multiplied by a target scale factor (TSF);
• in response to the request, determining the new hardware configuration in accordance with the TSF and a plurality of hardware utilizations of a plurality of hardware components in the current configuration while running the first I/O workload with the workload pattern P1 having the associated workload periodicity interval;
• and
• upgrading the current configuration of the data storage system based on the new hardware configuration.

A non-transitory computer readable medium comprising code stored thereon that, when executed, performs a method comprising:

• receiving a request for a new hardware configuration of a data storage system,
• wherein the data storage system has a current configuration and is currently running a first workload W1 with a workload pattern P1 having an associated workload periodicity interval,
• wherein the first workload W1 corresponds to a first input/output (I/O) workload of the data storage system,
• wherein the new hardware configuration is modeled as running an associated second workload W2 with the workload pattern P1 and the associated workload periodicity interval,
• wherein the associated second workload W2 corresponds to an associated second I/O workload of the data storage system;
• and
• wherein the associated second I/O workload is equal to the first I/O workload multiplied by a target scale factor (TSF);
• in response to the request, determining the new hardware configuration in accordance with the TSF and a plurality of hardware utilizations of a plurality of hardware components in the current configuration while running the first I/O workload with the workload pattern P1 having the associated workload periodicity interval;
• and
• upgrading the current configuration of the data storage system based on the new hardware configuration.