Event lock storage device

摘要

A system and method are disclosed for an event lock storage device. The storage device includes a user partition and an event partition (which may be associated with an event). The storage device receives data from a host device, and stores the data in the user partition. In response to receiving an indication of an event, the storage device may designate the data as part of the event partition. The event partition may include a set of access rules that is different from the user partition, such as more restrictive rules for modification or deletion of a file containing the data.

主权项

1. A storage device comprising:
memory comprising a user partition and an event partition; and a controller in communication with the memory, the controller configured to manage files in the user partition according to a first set of rules and manage files in the event partition according to a second set of rules different from the first set of rules, the controller configured to:
receive data, from a host device, the host device being external to the storage device;store the data in a file, the file being associated with the user partition in the storage device;determine whether an indication of occurrence of the event was received from the host device;in response to determining receipt of the indication of occurrence of the event, associate the data with the event partition of the storage device solely by performing one or more internal operations within the storage device;receive a command from the host device to delete the file;determine a difference between an age indicator associated with the file with the age indicator indicative of age of at least a part of the storage device;determine whether the difference is greater than a predetermined amount;in response to determining that the difference is greater than a predetermined amount, delete the file; andin response to determining that the difference is not greater than a predetermined amount, reject the command to delete the file, wherein the memory comprises a silicon substrate and a plurality of memory cells forming at least two memory layers vertically disposed with respect to each other to form a monolithic three-dimensional structure, wherein at least one memory layer is vertically disposed with respect to the silicon substrate.