Infortrend Technology, Inc. Patent applications |
Patent application number | Title | Published |
20140281799 | METHOD AND CONTROLLER FOR PROCESSING DATA MULTIPLICATION IN RAID SYSTEM - The invention discloses a method and controller for processing data multiplication in a RAID system. Map tables are generated for all values in a field, respectively. The length of an XOR operation unit is chosen to be appropriate w bits (e.g., 32 bits or 64 bits). One or several XOR operation units form a multiplication unit of a data sector. When computing on-line, data in a disk drive of a disk array are performed with XOR operations in accordance with one of the map tables using an XOR operation unit as one unit while computing on the multiplication unit to obtain a product of multiplication. | 09-18-2014 |
20140115287 | METHOD AND APPARATUS FOR PERFORMING VOLUME REPLICATION USING UNIFIED ARCHITECTURE - Method and apparatus for performing volume replication using a unified architecture are provided. Each volume has an exclusive volume log table (VLT) and an exclusive volume block update table (VBUT). The VLT is mainly used for recording the relationship between two volumes of a mirroring pair, and the VBUT is used for tracking the state of each data block of the volume itself. By means of the cross operations and applications between the VLT and the VBUT, various volume replication processes such as volume copying and volume mirroring can be enabled under a unified architecture. For each volume, different replication relationships with other volumes can be handled merely by administering its two exclusive tables. The method and the apparatus provided by the present invention can simplify the architecture for synchronization replication and reduce the burdens of administrating tables, thereby making the operation of a storage system more efficient. | 04-24-2014 |
20140068200 | Storage Subsystem And Storage System Architecture Performing Storage Virtualization And Method Thereof - A method for generating a virtual volume (VV) in a storage system architecture. The architecture comprises a host and one or more disk array subsystems. Each subsystem comprises a storage controller. One or more of the subsystems comprises a physical storage device (PSD) array. The method comprises the following steps: mapping the PSD array into a plurality of media extents (MEs), each of the MEs comprises a plurality of sections; providing a virtual pool (VP) to implement a section cross-referencing function, wherein a section index (SI) of each of the sections contained in the VP is defined by the VP to cross-reference VP sections to physical ME locations; providing a conversion method or procedure or function for mapping VP capacity into to a VV; and presenting the VV to the host. A storage subsystem and a storage system architecture performing the method are also provided. | 03-06-2014 |
20130013828 | SAS STORAGE VISUALIZATION CONTROLLER, SUBSYSTEM AND SYSTEM USING THE SAME, AND METHOD THEREFOR - A storage virtualization computer system. The storage virtualization computer system comprises a host entity for issuing an IO request, a SAS storage virtualization controller coupled to the host entity for executing IO operations in response to the IO request, and at least one physical storage device, each coupled to the storage virtualization controller through a SAS interconnect, for providing data storage space to the storage virtualization computer system through the SAS storage virtualization controller. | 01-10-2013 |
20120331251 | POOL SPARES FOR DATA STORAGE VIRTUALIZATION SUBSYSTEM - A data storage virtualization subsystem (SVS) for providing storage to a host entity is disclosed. The SVS comprises a storage virtualization controller for connecting to the host entity, at least one physical storage device (PSD) pool, and at least one PSD is designated to be a pool spare PSD to the at least one PSD pool. The at least one PSD pool comprises at least one enclosure for receiving the PSD, and at least one ID-storing device to store a pool ID for identifying the at least one physical storage device pool. | 12-27-2012 |
20100274977 | Data Accessing Method And Apparatus For Performing The Same - The present invention discloses a data accessing method and an apparatus for performing the method. Through a newly-defined host logical unit (HLUN), a unique HLUN number is given to each LUN-to-LD/Partition mapping relationship, and the HLUN is present to external hosts. Therefore, all of the hosts in the same storage system may recognize different logical units (i.e., HLUN). Hence, when processing an Input/Output (IO) request issued from any one host, a storage virtualization controller (SVC) can correctly find the corresponding LD/Partition for accessing data without identifying the identity of the host. | 10-28-2010 |
20100265651 | SLIDING RAIL HAVING ANTI-TILTING MECHANISM - A sliding rail having anti-tilting mechanism is disclosed. The sliding rail includes a slidable connecting piece that is located at an enclosure and that has a fourth retaining portion, a slider whose outer side has a second slidable connecting portion and whose inner side has a resilient piece with a second retaining portion and a third retaining portion that is used to retain or release the fourth retaining portion, and a support with a first slidable connecting portion and a first retaining portion, wherein the second slidable connecting portion is connected with the first slidable connecting portion and moves in the forward and backward direction. When the slider and the support are located at the first relative location, the resilient piece retains the fourth retaining portion. When the slider and the support are located at the second relative location, the slidable connecting piece is released from the slider. | 10-21-2010 |
20100205392 | Method for Remote Asynchronous Replication of Volumes and Apparatus Therefor - A method for remote asynchronous volume replication and apparatus therefore are disclosed. Asynchronous replication is applied to deal with data changes on the source volume on the local site incurred by Host IO requests. In coordination with the “point-in-time differential backup” technology, the data is subjected to be backuped to Source BAS on the local site (backup-on-write operation) only when the original data being written into the block of the source volume is different from the data of the corresponding block of the destination volume on the remote site. As a result, once a new data is written into the source volume completely, the host will be responded that its Host IO request is completed. Therefore, the data necessarily transmitted to the destination volume on the remote site can be minimized, and the problem of remote data transmission limited by network bandwidth can be prevented effectively, thereby keeping the operation performance of the storage system at a better level. | 08-12-2010 |
20100199041 | Storage Subsystem And Storage System Architecture Performing Storage Virtualization And Method Thereof - Method for accessing data in a storage system architecture, the architecture comprises at least one disk array subsystem, comprising the following steps. Provide a SAS for managing a first and a second media extent (ME) the at least one subsystem. Obtain a location index corresponding to a host LBA via a BAT. Obtain a location information of a physical section located in the first ME corresponding to the location index via a physical section to virtual section cross-referencing functionality. Update the cross-reference in the cross-referencing functionality so that the location information obtained from the cross-referencing functionality corresponding to the location index is the location information of the second physical section. A host IO request addressing the host LBA accesses data in the second physical section utilizing the location information of the second physical section. | 08-05-2010 |
20100199040 | Storage Subsystem And Storage System Architecture Performing Storage Virtualization And Method Thereof - A method for generating a virtual volume (VV) in a storage system architecture. The architecture comprises a host and one or more disk array subsystems. Each subsystem comprises a storage controller. One or more of the subsystems comprises a physical storage device (PSD) array. The method comprises the following steps: mapping the PSD array into a plurality of media extents (MEs), each of the MEs comprises a plurality of sections; providing a virtual pool (VP) to implement a section cross-referencing function, wherein a section index (SI) of each of the sections contained in the VP is defined by the VP to cross-reference VP sections to physical ME locations; providing a conversion method or procedure or function for mapping VP capacity into to a VV; and presenting the VV to the host. A storage subsystem and a storage system architecture performing the method are also provided. | 08-05-2010 |
20100191927 | Method and Apparatus for Performing Volume Replication Using Unified Architecture - A method and apparatus for performing volume replication using a unified architecture are provided. Each volume has an exclusive volume log table (VLT) and an exclusive volume block update table (VBUT). The VLT is mainly used for recording the relationship between two volumes of a mirroring pair, and the VBUT is used for tracking the state of each data block of the volume itself. By means of the cross operations between the VLT and the VBUT, various volume replication processes such as volume copying and volume mirroring can be enabled under a unified architecture. Specifically, for each volume, different replication relationships with other volumes can be handled merely by administering its two exclusive tables. Hence, the method and apparatus provided by the present invention can advantageously simplify the architecture for synchronization replication and reduce the burdens of administrating tables, thereby making the operation of a storage system more efficient. | 07-29-2010 |
20100115162 | Redundant Storage Virtualization Computer System - A redundant storage virtualization computer system is provided. The redundant storage virtualization computer system comprises a host entity for issuing an IO request, a redundant storage virtualization controller set coupled to the host entity for performing an IO operation in response to the IO request issued by the host entity, and a plurality of physical storage devices for providing storage space to the computer system. Each of the physical storage devices is coupled to the redundant storage virtualization controller set. The redundant storage virtualization controller set comprises a first and a second storage virtualization controller both coupled to the host entity, the storage virtualization controllers communicate therebetween via a PCI-Express interconnect. In the redundant storage virtualization controller set, a storage virtualization controller will take over the functionality originally performed by the alternate storage virtualization controller when the alternate storage virtualization controller is not on line. | 05-06-2010 |
20100037022 | RAID Data Protection Architecture Using Data Protection Information - A structure of redundant array of independent disks (RAID) comprising multiple parity data is provided. A data protection field is attached after each basic data access unit of the parity data sequences and each subfields of the data protection field is defined according to different applications to protect the basic data access unit of the parity data or the data protection field of the payload data from errors incurring during data transmission. | 02-11-2010 |
20090313617 | Method for Updating Control Program of Physical Storage Device in Storage Virtualization System and Storage Virtualization Controller and System Thereof - Method for updating control program of physical storage devices including the steps of: selecting PSD(s) to be updated with the control program; making the PSD(s) in an off-line state; and updating the control program of the PSD(s), wherein if it needs to issue a write request to the selected PSD(s) before completion of updating the control program, unmodified data segment(s) corresponding to the write request is marked as modified data segment(s). the selected PSD(s) performs partial rebuilding after completion of updating the control program, and if it needs to read out from or write to an unmodified data segment of the selected PSD(s) before completion of the partial rebuilding, a R/W request can be issued to the PSD directly without waiting for completion of the partial rebuilding of the PSD. Multiple parity data chunks can also be provided in the same data stripe in another embodiment. | 12-17-2009 |