Dynamically controlling variable data storage device threshold temperatures within a storage system

A method for dynamically varying threshold temperatures for data storage devices (DSDs) positioned in data storage system (DSS) slots, the method comprising:

• for a particular DSD positioned in a corresponding particular DSS slot:
• determining a marginal temperature value of the particular DSD (TMd) equal to a difference of a current threshold temperature value of the particular DSS slot (TTe) and a current temperature value of the particular DSD (TCd);
• computing a product Y=(y %)×TTd, where TTd represents a threshold temperature value of the particular DSD (TTd);
• computing a product Z=(z %)×TTd;
• determining whether the TMd is greater than Y;
• responsive to the TMd being greater than Y, determining whether the TTe is less than Z;
• and
• responsive to TTe being less than Z, generating an updated TTe value (TTeu) by incrementing the TTe by a certain percent of the TCd.

An electronic controller for a data storage system comprising a data storage device (DSD) positioned in a data storage system (DSS) slot, the controller comprising:

• means for executing machine-executable instructions;
• means for storing one or more sequences of machine-executable instructions which, when executed by the means for executing, cause performance of:
• determining a marginal temperature value of a particular DSD (TMd) based on a difference of a current assigned threshold temperature value of a particular DSS slot (TTe) and a current temperature value of the particular DSD (TCd);
• determining whether the TMd is greater than a lower limit, based on a threshold temperature value of the particular DSD (TTd), for updating the TTe;
• determining whether the current TTe is less than an upper limit, based on the TTd, for updating the TTe;
• responsive to the TMd being greater than the lower limit and the current TTe being less than the upper limit, raising the current TTe to an updated TTe;
• and
• permitting the particular DSD to operate at temperatures up to the updated TTe.