| Patent application number | Description | Published |
|---|
| 20080239545 | System and Method to Avoid Disk Lube Pooling - A system and method to avoid disk lube pooling is presented. A track access monitor tracks the number of times that a program accesses a particular track located on a hard drive. When the track access monitor determines that the number of track accesses to a particular track exceed a track access threshold, the track access monitor invokes a sequence of events to scan adjacent tracks in order to uniformly redistribute lubrication over the hard drive. In one embodiment, the track access monitor incrementally performs the adjacent track scanning during hard drive idle periods, such as when the system waits for a password from a user or when the operating system conserves power and idles the hard drive due to lack of activity. | 10-02-2008 |
| 20080240428 | MAGNETIC RECORDING MEDIUM ENCRYPTION - Systems and methods for easily and at high speed re-encrypting data recorded on a magnetic recording medium when the data is encrypted using an encryption key and the encryption key is changed. A track where effective user data is not recorded is set as a first reserved track, then data is read out from the first updating source track and decrypted using a first encryption key KEY | 10-02-2008 |
| 20090217024 | Recovering from Hard Disk Errors that Corrupt One or More Critical System Boot Files - A system, method, and program product is provided that recovers from a sector error affecting a critical file. A damaged sector prevents a critical file from being read prevents the computer system from booting. A controller records a sector number corresponding to the damaged sector. The system is rebooted using an alternative boot media. The system accesses the primary nonvolatile storage media after the rebooting. The damaged sector number is read from the error log and a file map is used to determine the critical file that is stored in the damaged sector. A backup copy of the critical file is retrieved from a backup media. The backup copy is written to the primary media using undamaged sectors and the critical file is mapped to the undamaged sectors. The system is subsequently booted successfully from the primary nonvolatile storage media. | 08-27-2009 |
| 20100082936 | Cache Mapping for Solid State Drives - An approach is provided that loads software files, such as an operating system, on a hybrid storage device. The hybrid storage device is a device that includes a nonvolatile storage device and a nonvolatile memory cache. The nonvolatile memory cache has less storage capacity than the nonvolatile storage device. The nonvolatile memory cache is preset (“pinned”) to data corresponding to an initial set of address ranges of the nonvolatile storage device, such as all or part of the operating system that was loaded onto the nonvolatile storage device. A system usage metric is initialized along with a threshold value. The nonvolatile memory cache remains pinned to the initial set of address ranges until the system usage metric reaches the threshold value. When the system usage metric reaches the threshold value, then a caching algorithm is used to determine what data should be cached to the nonvolatile memory cache. | 04-01-2010 |
| 20100115345 | Apparatus, System, and Method for Rapid Grading of Computer Storage Operating Condition - An apparatus, system, and method are disclosed for rapidly grading the operating condition of computer storage. A storage log module | 05-06-2010 |
| 20100250846 | ASYMETRIC LOAD BALANCING FOR RAID STORAGE SYSTEMS - The instant invention broadly contemplates balancing of asymmetric RAID arrays based on application usage patterns. The instantly claimed invention broadly contemplates balancing the type of workload and delivery of the work load in asymmetric RAID arrays by intelligently implementing different types of applications on disks strategically positioned to deliver workload to the RAID channel that is most capable of handling the work load. The invention makes use of the fact that some applications are more large block, sequential transfer dependant while other applications are more small block, high random, high IOP dependent, and places these applications accordingly within the asymmetric RAID array. | 09-30-2010 |
| 20100250959 | SECURITY FOR STORAGE DEVICES - The invention broadly contemplates a security solution for storage devices that is inexpensive and robust. The invention allows a store of system specific data to be used to release the hard disk key of full-disk encryption (FDE) drives. This system specific data is passed to the FDE drives and used to calculate the actual encryption key. This allows for safe disposal of an FDE drive containing confidential data, as the lack of available system specific decryption data makes decryption virtually impossible. | 09-30-2010 |
| 20110075290 | SYSTEMS AND METHODS FOR ADJACENT TRACK INTERFERENCE (ATI) RISK MANAGEMENT - Embodiments of the invention broadly contemplate systems, methods and arrangements for managing Adjacent Track Interference (ATI) risk through intelligent management of a table that logs individual tracks creating a risk of ATI in tracks adjacent thereto. Embodiments of the invention provide that tracks considered being at low risk for creating ATI be ejected from the table in order to maintain a track-level log of manageable size. | 03-31-2011 |
| 20110093674 | Method and Apparatus for Automatic Solid State Drive Performance Recovery - A method and apparatus are disclosed for automatic solid state drive performance recovery. A detection module detects a first SSD exceeding a fragmentation threshold. A plurality of drives comprises the first SSD and stores a data copy of data stored on the first SSD. An erase module erases a mapping table for the first SSD. The mapping table maps Logical Block Addresses LBA to physical addresses for the first SSD. A rebuild module rebuilds the data and the mapping table on the first SSD from the data copy. | 04-21-2011 |
| 20110119443 | Apparatus and Method for Distributing Writes Asymmetrically Among Drives - An apparatus and method are disclosed for distributing writes asymmetrically. An asymmetric distribution module calculates an asymmetric distribution of writes for a plurality of drives. A write module writes data to each drive in accordance with the asymmetric distribution of writes. | 05-19-2011 |
