Method and system for accessing files on a storage system

A method for accessing files on a storage system having a buffer and a disk, the method comprising:

• building a hash memory table for recording metadata of the files;
• embedding logical file names of the files into physical addresses storing the files in the disk while writing the files into the disk;
• loading the hash memory table into the buffer;
• and
• accessing the files according to the hash memory table loaded into the buffer and the logical file names embedded into of the physical addresses of the disk.

A storage system, comprising:

• a microprocessor;
• a buffer, coupled to the microprocessor;
• a disk, coupled to the microprocessor;
• a metadata management unit, coupled to the microprocessor and configured to build a hash memory table, wherein the hash memory table includes a plurality of hash buckets respectively corresponding to a plurality of index hash codes, each of the hash buckets has a pointer, each of the pointer points towards at least one entry, each of the entries has a physical address field and a hash code field, the physical address fields respectively record physical addresses storing files, the hash code fields respectively record verification hash codes corresponding to the files, the index hash codes is generated by inputting keys of the files to an index hash function and the verification hash codes is generated by inputting the keys of the files to a verification hash function,
• the metadata management unit is further configured to load the hash memory table into the buffer with a bucket-based replacement policy and access the files according to the hash memory table loaded into the buffer.

A storage system, comprising:

• a microprocessor;
• a buffer, coupled to the microprocessor;
• a disk, coupled to the microprocessor;
• and
• a metadata management unit, coupled to the microprocessor and configured to build a hash memory table for recording metadata of the files,
• wherein the metadata management unit is further configured to embed logical file names of the files into physical addresses storing the files in the disk while writing the files into the disk,
• wherein the metadata management unit is further configured to load the hash memory table into the buffer with a bucket-based replacement policy,
• wherein the metadata management unit is further configured to access the files according to the hash memory table loaded into the buffer and the logical file names embedded into of the physical addresses of the disk.