Content-aware storage system and method for use therewith
A content-aware storage system and method for use therewith are presented. In one embodiment, a storage system is provided comprising a memory and a controller. The controller is configured to receive an image; determine an amount of spare memory space; generate a lower-resolution version of the image, wherein a resolution level of the lower-resolution version of the image is based on the determined amount of spare memory space; and store the image and the lower-resolution version of the image in the memory. Other embodiments are provided.
1. A storage system comprising:
a memory; and
a controller configured to:
receive an image;
determine an amount of spare memory space;
generate a lower-resolution version of the image, wherein a resolution level of the lower-resolution version of the image is based on the determined amount of spare memory space; and
store the image and the lower-resolution version of the image in the memory, wherein the image is stored in multi-level memory cells in the memory and the lower-resolution version of the image is stored in single-level memory cells in the memory.
2. The storage system of claim 1 , wherein the resolution level of the lower-resolution version of the image is also based on a size of the image.
3. The storage system of claim 1 , wherein the controller is further configured to generate the lower-resolution version of the image as a background operation.
4. The storage system of claim 1 , wherein the controller is further configured to:
receive a request from a host for the image; and
decide whether to send the image or the lower-resolution version of the image in response to the request.
5. The storage system of claim 4 , wherein the controller is further configured to decide whether to send the image or the lower-resolution version of the image based on application usage.
6. The storage system of claim 5 , wherein the application usage comprises one or more of the following: an image search, a preview command, a compute command, an image analysis application, and a compression application.
7. The storage system of claim 1 , wherein the controller is further configured to generate the lower-resolution version of the image by sub-sampling with Gaussian pre-filtering.
8. The storage system of claim 1 , wherein the controller is further configured to:
track changes in the amount of spare memory space; and
dynamically change the resolution level of the lower-resolution version of the image based on the tracked changes.
9. The storage system of claim 1 , wherein the controller is further configured to maintain a map of memory locations of the image and the lower-resolution version of the image.
10. The storage system of claim 1 , wherein the controller is further configured to associate at least some metadata of the image with the lower-resolution version of the image.
11. The storage system of claim 1 , wherein the controller is further configured to delete the lower-resolution version of the image in response to a need for additional space in the memory.
12. The storage system of claim 1 , wherein the memory comprises a three-dimensional memory.
13. A method comprising:
performing the following in a storage system comprising a memory comprising primary blocks and spare blocks, wherein a spare block is configured to be used responsive to a primary block being unavailable:
receiving an image;
storing the image in available primary blocks in the memory; and
generating and storing a lower-resolution copy of the image in available spare blocks in the memory, wherein a difference in resolution levels between the image and the lower-resolution copy of the image is based on a number of available spare blocks in the memory.
14. The method of claim 13 , further comprising, in response to receiving a request for the image, deciding whether to send the image or the lower-resolution copy of the image.
15. The method of claim 13 , further comprising dynamically changing the resolution level of the lower-resolution copy of the image based on changes to the number of available spare blocks in the memory.
16. A storage system comprising:
a memory; and
means for storing an image and a lower-resolution version of the image in the memory, wherein a difference between a resolution level of the image and a resolution level of the lower-resolution version of the image depends on an amount of spare memory,
wherein the image is stored in multi-level memory cells in the memory and the lower-resolution version of the image is stored in single-level memory cells in the memory.