US 12,405,733 B2
Power consumption reduction in storage system
Amitai Alkalay, Kadima (IL); Lior Kamran, Richon LeZion (IL); and Aric Hadav, Tel Aviv (IL)
Assigned to Dell Products L.P., Round Rock, TX (US)
Filed by Dell Products L.P., Round Rock, TX (US)
Filed on Aug. 24, 2023, as Appl. No. 18/237,553.
Prior Publication US 2025/0068338 A1, Feb. 27, 2025
Int. Cl. G06F 3/06 (2006.01)
CPC G06F 3/0625 (2013.01) [G06F 3/0653 (2013.01); G06F 3/0689 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method of reducing power consumption in a storage system, comprising:
selecting, from among a plurality of storage drives of a storage system, a first number of storage drives for inclusion in an active drive subgroup;
designating, from among the plurality of storage drives, a second number of storage drives for inclusion in an inactive drive subgroup, a total number of the plurality of storage drives being equal to a sum of the first number of storage drives in the active drive subgroup and the second number of storage drives in the inactive drive subgroup;
setting each of the second number of storage drives in the inactive drive subgroup to a non-operational state;
periodically monitoring at least one condition or metric pertaining to the first number of storage drives in the active drive subgroup;
determining whether the at least one monitored condition or metric is less than or greater than a predefined threshold;
in response to the at least one monitored condition or metric being less than the predefined threshold, decreasing the first number of storage drives by removing a storage drive from among the first number of storage drives in the active drive subgroup; and
in response to the at least one monitored condition or metric being greater than the predefined threshold, waking, from the non-operational state, a storage drive from among the second number of storage drives in the inactive drive subgroup.