| DATADIRECT NETWORKS, INC. Patent applications |
| Patent application number | Title | Published |
|---|
| 20100153634 | SYSTEM AND METHOD FOR DATA MIGRATION BETWEEN COMPUTER CLUSTER ARCHITECTURE AND DATA STORAGE DEVICES - An improved duty cycle, increased effective bandwidth, and minimized power consumption are attained in a system for data migration between a compute cluster and disk drives by inclusion of a buffer node coupled to the compute cluster to store data received therefrom in a random fashion. The buffer node signals the computer nodes to promptly return from the I/O cycle to the computing state to improve the duty cycle of the device. The system further includes a storage controller which is coupled between the buffer node and the disk drives to schedule data transfer activity between them in an optimal orderly manner. The data transfers are actuated in the sequence determined based on minimization of seeking time and tier usage, and harvest priority, when the buffer node either reaches a predetermined storage space minimal level or a predetermined time has elapsed since the previous I/O cycle. The storage controller deactivates the disk drives which are not needed for the data transfer. Since the writing on the disk drives is conducted in the orderly manner, the system avoids the usage of excessive number of disk drives. | 06-17-2010 |
| 20090172273 | METHOD AND SYSTEM FOR DISK STORAGE DEVICES REBUILD IN A DATA STORAGE SYSTEM - In a data storage system, failed disk drives are switched temporarily off-line to be quickly rebuilt by executing a journaling/rebuild algorithm which tracks the updates to the failed disk drive into a journal structure created in a non-volatile memory. The journal information is used to update those data sections of the disk drive affected by updates after the disk drive is failed. The journal information is stored in bit maps indicating which portions of the disk drive have been updated with new data while the disk was failed. As an option, the system permits verification of data consistency on the data section of the disk drive which have not been affected by the updates. The journaling/rebuild of failed disks is applicable, among others, to RAID data storage systems. | 07-02-2009 |
| 20090055585 | METHOD FOR AUTO-CORRECTION OF ERRORS IN A RAID MEMORY SYSTEM - A method for auto-correction of errors in an array of disk storage devices ( | 02-26-2009 |
