17971675. SELECTIVE HARD AND SOFT REWRITES simplified abstract (INTERNATIONAL BUSINESS MACHINES CORPORATION)
Contents
- 1 SELECTIVE HARD AND SOFT REWRITES
SELECTIVE HARD AND SOFT REWRITES
Organization Name
INTERNATIONAL BUSINESS MACHINES CORPORATION
Inventor(s)
Ernest Stewart Gale of Tucson AZ (US)
Roy Cideciyan of Rueschlikon (CH)
Masayuki Iwanaga of Urayasu (JP)
SELECTIVE HARD AND SOFT REWRITES - A simplified explanation of the abstract
This abstract first appeared for US patent application 17971675 titled 'SELECTIVE HARD AND SOFT REWRITES
Simplified Explanation
The present disclosure involves systems and methods for reducing rewrite overhead in a sequential access storage system. The method includes writing a data set to a sequential access medium using a magnetic head, classifying each of the encoded data blocks on the medium into one of at least three classes of write quality, and rewriting the encoded data blocks in a rewrite area based on the write quality class.
- Writing data to sequential access storage using magnetic head
- Classifying data blocks into three classes of write quality
- Rewriting data blocks in a rewrite area based on write quality
Potential Applications
This technology could be applied in:
- Data storage systems
- Backup systems
- Archival systems
Problems Solved
This technology helps in:
- Reducing rewrite overhead
- Preventing data loss
- Improving data reliability
Benefits
The benefits of this technology include:
- Enhanced data integrity
- Efficient use of storage space
- Improved system performance
Potential Commercial Applications
This technology could be used in:
- Data centers
- Cloud storage providers
- Information management companies
Possible Prior Art
One possible prior art for this technology could be:
- Magnetic tape storage systems
What are the potential limitations of this technology?
How does this technology compare to existing solutions in the market?
Original Abstract Submitted
The present disclosure includes systems and methods for reducing rewrite overhead in a sequential access storage system. The method may comprise writing a data set to a sequential access medium using a magnetic head, wherein the data set comprises a plurality of encoded data blocks, classifying each of the plurality of encoded data blocks on the sequential access medium into one of at least three classes of write quality, and rewriting the encoded data blocks in a rewrite area of the sequential access medium based at least in part on the write quality class. In some embodiments, the at least three classes of write quality may comprise a hard rewrite class for which rewrites are necessary to prevent data loss, a soft rewrite class for which rewrites are desirable but not necessary, and a no rewrite class for which no rewrite is needed or desired.
