Power efficient storage management

摘要

One or more systems and/or techniques are provided for managing a partially encrypted file system, for storage hardware virtualization, and/or for storage management. In example, data may be stored in a partially encrypted file system, where sensitive data is encrypted for security and non-sensitive data is unencrypted, which may mitigate energy usage otherwise used for encrypting non-sensitive data, thus improving battery life. In an example, a storage device may be exposed to applications as a plurality of isolated storage structures where an application is provided data access to an isolated storage structure assigned to the application but not to isolated storage structures assigned to other applications, which may provide hardware level isolation with improved energy efficiency. In an example, a storage management component, configured to provide isolation and encryption, may be integrated into a computing device as an application specific integrated circuit (ASIC) or a system on a chip (SoC).

主权项

1. A method for managing a partially encrypted file system, comprising:
identifying data that is to be stored by an application to a partially encrypted file system; determining a data sensitivity for the data; responsive to the data sensitivity exceeding an encryption threshold, storing the data as encrypted data within the partially encrypted file system while a mobile device, hosting the application, is in a low power state, and storing an unencrypted copy of the encrypted data in non-persistent memory, the unencrypted copy of the encrypted data to be deleted in response to detecting the application has executed instructions based on the unencrypted copy of the encrypted data; and responsive to the data sensitivity not exceeding the encryption threshold, storing the data as unencrypted data within the partially encrypted file system in persistent memory while the mobile device, hosting the application, is in the low power state to improve energy efficiency of the mobile device by not using a common language runtime or a central processing unit to encrypt the data.