Apparatus and method for segmented cache utilization

A non-volatile cache memory, comprising:

• a segmented non-volatile cache memory that includes a file cache segment configured to store complete files in accordance with a file cache policy, and a block cache segment configured to store one or more blocks of one or more files in accordance with a block cache policy;
• and
• a controller coupled to the segmented non-volatile cache memory and configured to utilize the file cache segment in accordance with information related to the block cache segment and to utilize the block cache segment in accordance with information related to the file cache segment;
• and
• the controller is configured to determine a percent accessed statistic for a file.

A method comprising:

• storing in a segmented non-volatile cache memory that includes a file cache segment complete files in accordance with a file cache policy, and storing to a block cache segment one or more blocks of one or more files in accordance with a block cache policy;
• and
• utilizing the segmented non-volatile cache memory the file cache segment in accordance with information related to the block cache segment and utilizing the block cache segment in accordance with information related to the file cache segment;
• and
• determining a percent accessed statistic for a file.