Allocation of rotating memory device storage locations
Memory management unit with dynamic page allocation
Self-extending administrative memory file
Real-time garbage collection for list processing using restructured cells for increased reference counter size
Method of reading and writing files on nonerasable storage media
Modular data storage directories for large-capacity data storage units wherein the index to the records in a sector is located in the next adjacent sector
Data processing method to create virtual disks from non-contiguous groups of logically contiguous addressable blocks of direct access storage device Patent #: 5129088
ApplicationNo. 379257 filed on 07/13/1989
US Classes:707/205File allocation
ExaminersPrimary: Rudolph, Rebecca L.
Attorney, Agent or Firm
Foreign Patent References
International ClassG06F 007/22
AbstractA method of dynamically managing the storage of information in a mass memory of a data processor is described. The mass memory includes a plurality of volumes of write-once media such as optical discs. The method involves grouping the volumes into volume sets, which each contain at least one file set, and dynamically increasing the size of the file sets and volume sets as needed during file storage. Update areas are set aside for each file set for modifications to the original data originally written into that file set. Allocation of storage to allow time-efficient access of files is accomplished by examining storage media characteristics, limits on file set size, and sizes of the data to be written into the file sets. Timers are set to indicate when volumes contain obsolete data and can be removed, when no additional data should be written onto volumes which are not obsolete, and when a volume should be flipped over so the other surface can be filled.
Field of SearchLocating specific areas