| KAMINARIO TECHNOLOGIES LTD. Patent applications |
| Patent application number | Title | Published |
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| 20120110291 | SYSTEM AND METHOD FOR I/O COMMAND MANAGEMENT - Systems and methods for input/output command management. In embodiments of the invention an input/output command fully executes after a lock has been obtained for the command on all storage segments relating to the command, in a predetermined order. Some embodiments of the invention allow overlapping access to storage and/or to individual storage segments by a plurality of input/output commands. In some embodiments of the invention, prioritization of commands is facilitated through the usage of a sharing policy and/or wakeup policy. | 05-03-2012 |
| 20120102242 | CONTROLLING DATA DESTAGING WITHIN A MULTI-TIERED STORAGE SYSTEM - There is provided according to an example of the claimed subject matter, a system and a method for managing access to a shared storage entity. According to an example of the claimed subject matter, a system for managing access to a shared storage entity can include two or more initiator entities, two or more local sequencing agents and an arbitration module. Each of the two or more local sequencing agents can be associated with a respective one of two or more initiator entities which generate I/O requests for accessing the shared storage entity. Each local sequencing agent can be adapted to locally sequence its respective initiator entity's I/O requests. The arbitration module can be adapted to manage an access cycle to the shared storage entity by allocating to each one of the plurality of initiator entities a monolithic/continuous chunk of the access cycle to implement its own I/O access sequence, wherein chunk allocation is determined according to subframe allocation criteria related to the functional characteristics of each of the initiator entities. | 04-26-2012 |
| 20120030415 | MASS-STORAGE SYSTEM UTILIZING AUXILIARY SOLID-STATE STORAGE SUBSYSTEM - A mass storage system including main and auxiliary storage subsystems and a controller Main storage provides physical storage space and includes non-solid-state storage devices (“NSSDs”) NSSDs provide physical locations, and main storage includes physical storage locations provided by NSSDs Controller is coupled to main storage and may be configured for mapping logical addresses to physical locations, giving rise to a logical storage space The auxiliary subsystem includes a solid-state data retention device (“SSDRD”) capable of permanently storing data and provides a physical location, giving rise to auxiliary space Controller is coupled to the auxiliary subsystem and may override a mapping of logical addresses to physical locations, with a mapping of logical address to physical locations within the auxiliary space, overriding physical storage locations Controller is adapted for loading a snapshot of the data currently stored in the overridden physical storage locations. | 02-02-2012 |
| 20110276831 | Utilizing Input/Output Paths For Failure Detection And Analysis - Systems and methods for failure monitoring in a storage system. In some cases, a failed entity is detected based on an analysis of at least the indications obtained in return for input/output commands sent to multiple entities in the storage system. In some of these cases, it is also determined whether the failure is enduring or transient. | 11-10-2011 |
| 20110276768 | I/0 COMMAND HANDLING IN BACKUP - Systems and methods for input/output command management. In some cases of a write command received from a host, a maximum capacity limit relating to primary memory may be disregarded because data relating to the write command is written to backup memory prior to acknowledging the write command. In some of these cases, timeout is less likely than if the maximum capacity limit had been respected. | 11-10-2011 |
| 20110252201 | SMART FLUSHING OF DATA TO BACKUP STORAGE - A storage system, including: (a) a primary storage entity utilized for storing a data-set of the storage system; (b) a secondary storage entity utilized for backing-up the data within the primary storage entity; (c) a flushing management module adapted to identify within the primary storage entity two groups of dirty data blocks, each group is comprised of dirty data blocks which are arranged within the secondary storage entity in a successive sequence, and to further identify within the primary storage entity a further group of backed-up data blocks which are arranged within the secondary storage entity in a successive sequence intermediately in-between the two identified groups of dirty data blocks; and (d) said flushing management module is adapted to combine the group of backed-up data blocks together with the two identified groups of dirty data blocks to form a successive extended flush sequence and to destage it to the secondary storage entity. | 10-13-2011 |
| 20110202792 | System and Methods for RAID Writing and Asynchronous Parity Computation - A computer storage management system for managing a first plurality of data storage units, the system including: (a) an asynchronous parity computation manager which, responsive to a write operation in which an incoming data portion is to be written into an individual storage unit from among the storage units, deposits the incoming value in the individual storage unit an stores a copy of the data element in a pre-parity storage area, and wherein asynchronously with depositing the incoming value in the individual storage unit, the asynchronous parity computation manager is operative to compute parity data corresponding to the incoming data portion and to other data portions which are associated with the incoming data portion and to store the parity data; and (b) a post-loss data recovery manager operative to recover lost data including determining whether at least one parity value associated with at least one data portion within said lost data is not current and, for at least one non-current parity, using information stored in the pre-parity storage area to generate, after said lost data has been lost, a current parity to replace said non-current parity and using said current parity to recover said lost data. | 08-18-2011 |
