Triggering, at a host system, a process to reduce declared capacity of a storage device

A storage system, comprising:

• one or more storage devices;
• and
• a host to which the one or more storage devices are operatively coupled, the host including:
• one or more processors;
• and
• host memory storing one or more programs, which when executed by the one or more processors cause the host to perform operations comprising:
• obtaining one or more metrics of a storage device of the one or more storage devices, the storage device including non-volatile memory;
• detecting a trigger condition in accordance with the one or more metrics of the storage device;
• enabling an amelioration process associated with the detected trigger condition, the amelioration process to reduce declared capacity of the non-volatile memory of the storage device, wherein declared capacity is storage capacity available to the host;
• prior to detecting the trigger condition, detecting a first wear condition of the non-volatile memory of the storage device, wherein a total storage capacity of the non-volatile memory of the storage device includes declared capacity and over-provisioning;
• and
• in response to detecting the first wear condition, performing a remedial action that reduces over-provisioning of the non-volatile memory of the storage device without reducing declared capacity of the non-volatile memory of the storage device.

A non-transitory computer readable storage medium, storing one or more programs configured for execution by one or more processors of a host system, the one or more programs including instructions for:

• obtaining one or more metrics of a storage device coupled to the host system, the storage device including non-volatile memory;
• detecting a trigger condition in accordance with the one or more metrics of the storage device;
• enabling an amelioration process associated with the detected trigger condition, the amelioration process to reduce declared capacity of the non-volatile memory of the storage device, wherein declared capacity is storage capacity available to the host;
• prior to detecting the trigger condition, detecting a first wear condition of the non-volatile memory of the storage device, wherein a total storage capacity of the non-volatile memory of the storage device includes declared capacity and over-provisioning;
• and
• in response to detecting the first wear condition, performing a remedial action that reduces over-provisioning of the non-volatile memory of the storage device without reducing declared capacity of the non-volatile memory of the storage device.