专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20060036904A1 Data replication method over a limited bandwidth network by mirroring parities 审中-公开
标题翻译：通过镜像奇偶校验在有限带宽网络上的数据复制方法
公开(公告)号：US20060036904A1
公开(公告)日：2006-02-16
申请号：US10971470
申请日：2004-10-22
申请人： Qing Yang
发明人： Qing Yang
IPC分类号： G06F11/00
CPC分类号： G06F11/1076 , G06F11/2066 , G06F11/2071 , G06F2211/1009 , G06F2211/1045 , G06F2211/1066
摘要： A storage architecture provides efficient remote mirroring of data in RAID storage or like to a remote storage through a network connection. The storage architecture mirrors only a delta_parity. A parity cache keeps the delta_parity of each data block until the block is mirrored to the remote site. Whenever network bandwidth is available, the parity cache performs a cache operation to mirror the delta_parity to the remote site. If a cache miss occurs, i.e. the delta_parity is not found in the parity cache, computation of the data parity creates the delta_parity. For RAID architectures, reading old data and old parity is a necessary step of computing new parity for every write operation. Thus, no additional operation is needed to compute the delta_parity for mirroring. At the remote site, the delta_parity is used to generate the new parity and the new data using the old data and parity and, in turn, WAN traffic is substantially reduced.
摘要翻译：存储架构通过网络连接提供RAID存储中数据的高效远程镜像或远程存储。存储架构只反映delta_parity。奇偶校验缓存保持每个数据块的delta_parity，直到块被镜像到远程站点。每当网络带宽可用时，奇偶校验缓存执行高速缓存操作以将delta_parity镜像到远程站点。如果发生高速缓存未命中，即在奇偶校验高速缓存中没有找到delta_parity，则数据奇偶校验的计算产生delta_parity。对于RAID架构，读取旧数据和旧的奇偶校验是为每次写操作计算新奇偶校验的必要步骤。因此，不需要额外的操作来计算镜像的delta_parity。在远程站点，delta_parity用于使用旧数据和奇偶校验生成新奇偶校验和新数据，从而大大减少WAN流量。

2. 发明申请

US20040068612A1 Raid controller disk write mask 有权
标题翻译： RAID控制器磁盘写掩码
公开(公告)号：US20040068612A1
公开(公告)日：2004-04-08
申请号：US10267928
申请日：2002-10-08
发明人： Michael C. Stolowitz
IPC分类号： G06F012/00
CPC分类号： G06F11/1076 , G06F2211/1054 , G06F2211/1066
摘要： A RAID disk array controller (FIG. 7) implements a write mask 16 to support partial-stripe updates (FIG. 4) from a host system 60 without expensive RAM to RAM copying and repeated disk accesses to assemble the updated stripe. New data from the host 20,22 is transferred into a single buffer 14,40 and a local processor 80 tracksnullby setting bits 30,32 in the write masknullwhich segments of the target stripe are updated. The disk array is accessed to transfer the target stripe into the same buffer 40, but the buffer memory write enable 58 is inhibitednullresponsive to the write mask 52nullduring transfer of the segments that were updated by the host. The complete, updated stripe is thus formed in a single buffer for parity calculations and write to the disk array.
摘要翻译： RAID磁盘阵列控制器（图7）实现写入掩码16以从主机系统60支持部分条带更新（图4），而无需昂贵的RAM到RAM复制和重复的磁盘访问以组合更新的条带。来自主机20,22的新数据被传送到单个缓冲器14,40中，并且本地处理器80通过设置写入掩码中的位30,32来跟踪目标条带的哪些段被更新。访问磁盘阵列以将目标条带传送到相同的缓冲器40中，但是在由主机更新的段的传送期间缓冲存储器写使能58被禁止响应于写掩码52。因此，完整的更新的条带形成在用于奇偶校验计算的单个缓冲器中并写入磁盘阵列。

3. 发明授权

US06961816B2 Disk array device with selectable method for generating redundant data 失效
标题翻译：磁盘阵列设备，可选择生成冗余数据的方法
公开(公告)号：US06961816B2
公开(公告)日：2005-11-01
申请号：US10601892
申请日：2003-06-24
申请人： Eiju Katsuragi , Mikito Ogata , Akira Kurano , Toshihiko Tamiya , Akira Yamamoto , Naoya Takahashi
发明人： Eiju Katsuragi , Mikito Ogata , Akira Kurano , Toshihiko Tamiya , Akira Yamamoto , Naoya Takahashi
IPC分类号： G06F12/16 , G06F3/06 , G06F11/00 , G06F11/10 , G06F12/00 , G11B20/18
CPC分类号： G06F11/1076 , G06F2211/1054 , G06F2211/1066
摘要： A disk array device selects a redundant generation method for reducing the overhead and improving the reliability associated with generating redundant data. The disk array device includes a disk controller connected to and controlling an array of disk drives. The disk controller includes a redundant data generator, a difference data generator, and a redundant data generation method selector. The redundant data generator is able to generate redundant data via a read and modify method and an all stripes method. The disk array device selects a method of generating redundant data from a method of read and modify and all stripes, and a method of generation in a drive and a method of difference, both of which are executed to generate redundant data on a disk drive.
摘要翻译：磁盘阵列设备选择用于减少开销并提高与生成冗余数据相关联的可靠性的冗余生成方法。磁盘阵列设备包括连接到并控制磁盘驱动器阵列的磁盘控制器。磁盘控制器包括冗余数据生成器，差分数据生成器和冗余数据生成方法选择器。冗余数据生成器能够通过读取和修改方法和全部条纹方法生成冗余数据。磁盘阵列装置从读取和修改的方法以及所有条带中选择产生冗余数据的方法，以及在驱动器中产生的方法和差异方法，这两者都被执行以在盘驱动器上生成冗余数据。

4. 发明申请

US20050149678A1 Raid controller disk write mask 有权
标题翻译： RAID控制器磁盘写掩码
公开(公告)号：US20050149678A1
公开(公告)日：2005-07-07
申请号：US11060884
申请日：2005-02-17
申请人： Michael Stolowitz
发明人： Michael Stolowitz
IPC分类号： G06F20060101 , G06F11/10 , G06F12/00 , G06F12/16
CPC分类号： G06F11/1076 , G06F2211/1054 , G06F2211/1066
摘要： A RAID disk array controller implements a write mask to support partial-stripe updates from a host system without expensive RAM to RAM copying and repeated disk accesses to assemble the updated stripe. New data from the host is transferred into a single buffer and a local processor tracks—by setting bits in the write mask—which segments of the target stripe are updated. The disk array is accessed to transfer the target stripe into the same buffer, but the buffer memory write enable is inhibited—responsive to the write mask—during transfer of the segments that were updated by the host. The complete, updated stripe is thus formed in a single buffer for parity calculations and write to the disk array.
摘要翻译： RAID磁盘阵列控制器实现写掩码以支持来自主机系统的部分条带更新，而无需昂贵的RAM到RAM复制和重复的磁盘访问以组合更新的条带。来自主机的新数据被传送到单个缓冲器中，并且本地处理器通过设置写掩码中的位来跟踪目标条带的哪些段被更新。访问磁盘阵列以将目标条带传输到相同的缓冲器中，但缓冲存储器写使能在传输由主机更新的段时被禁止 - 响应于写掩码。因此，完整的更新的条带形成在用于奇偶校验计算的单个缓冲器中并写入磁盘阵列。

5. 发明授权

US06904498B2 Raid controller disk write mask 有权
标题翻译： RAID控制器磁盘写掩码
公开(公告)号：US06904498B2
公开(公告)日：2005-06-07
申请号：US10267928
申请日：2002-10-08
申请人： Michael C. Stolowitz
发明人： Michael C. Stolowitz
IPC分类号： G06F20060101 , G06F11/10 , G06F12/00 , G06F12/16
CPC分类号： G06F11/1076 , G06F2211/1054 , G06F2211/1066
摘要： A RAID disk array controller [(FIG. 7)] implements a write mask 16 to support partial-stripe updates [(FIG. 4)] from a host system [60] without expensive RAM to RAM copying and repeated disk accesses to assemble the updated stripe. New data from the host [20,22] is transferred into a single buffer [14,40] and a local processor [80] tracks—by setting bits [30,32] in the write mask—which segments of the target stripe are updated. The disk array is accessed to transfer the target stripe into the same buffer [40], but the buffer memory write enable [58] is inhibited—responsive to the write mask [52]—during transfer of the segments that were updated by the host. The complete, updated stripe is thus formed in a single buffer for parity calculations and write to the disk array.
摘要翻译： RAID磁盘阵列控制器[（图7）]实现写入掩码16以支持来自主机系统[（图4）]的部分条带更新，而不需要昂贵的RAM到RAM复制和重复的磁盘访问来组合更新条纹。来自主机[20,22]的新数据被传送到单个缓冲器[14,40]并且本地处理器[80]通过在写掩码中设置位[30,32]来跟踪目标条带的哪些段更新。访问磁盘阵列以将目标条带传输到相同的缓冲区[40]，但缓冲存储器写使能[58]在传送由主机更新的段时对写掩码有效。因此，完整的更新的条带形成在用于奇偶校验计算的单个缓冲器中并写入磁盘阵列。

6. 发明授权

US06701452B1 Disk array controller having distributed parity generation function 有权
标题翻译：具有分布式奇偶校验生成功能的磁盘阵列控制器
公开(公告)号：US06701452B1
公开(公告)日：2004-03-02
申请号：US09628302
申请日：2000-07-28
申请人： Morishige Kinjo , Kyoichi Sasamoto , Masao Sakitani
发明人： Morishige Kinjo , Kyoichi Sasamoto , Masao Sakitani
IPC分类号： G06F1216
CPC分类号： G06F11/1076 , G06F2211/1009 , G06F2211/1066
摘要： When a data update request is sent from a host computer, a main controller determines one of a plurality of disk cache units, which is used, in accordance with a striping group to which a stripe corresponding to the requested update data belongs. The main controller loads the block data, required for generating updated parity data for the stripe in units of blocks, in a parity generator in the corresponding disk cache unit via a cache memory in the determined disk cache unit. The corresponding parity generator generates corresponding parity data.
摘要翻译：当从主计算机发送数据更新请求时，主控制器根据与所请求的更新数据所属的条带对应的条带组来确定所使用的多个盘缓存单元中的一个。主控制器通过所确定的磁盘高速缓存单元中的高速缓冲存储器加载在相应磁盘高速缓存单元中的奇偶校验生成器中生成用于以块为单位的条带的更新奇偶校验数据所需的块数据。相应的奇偶校验发生器产生相应的奇偶校验数据。

7. 发明申请

US20040010661A1 Disk array device with selectable method for generating redundant data 失效
标题翻译：磁盘阵列设备，可选择生成冗余数据的方法
公开(公告)号：US20040010661A1
公开(公告)日：2004-01-15
申请号：US10601892
申请日：2003-06-24
申请人： Hitachi, Ltd.
发明人： Eiju Katsuragi , Mikito Ogata , Akira Kurano , Toshihiko Tamiya , Akira Yamamoto , Naoya Takahashi
IPC分类号： G06F012/16
CPC分类号： G06F11/1076 , G06F2211/1054 , G06F2211/1066
摘要： A disk array device selects a redundant generation method for reducing the overhead and improving the reliability associated with generating redundant data. The disk array device includes a disk controller connected to and controlling an array of disk drives. The disk controller includes a redundant data generator, a difference data generator, and a redundant data generation method selector. The redundant data generator is able to generate redundant data via a read and modify method and an all stripes method. The disk array device selects a method of generating redundant data from a method of read and modify and all stripes, and a method of generation in a drive and a method of difference, both of which are executed to generate redundant data on a disk drive. The disk array device selects the method of generating redundant data that will minimize the time required to process, transfer and store both the received host data and the generated redundant data based on the length of write data received from the host, an access pattern specified by the host, by the current load state of the disk drives, and by the existence of a failure state in a disk drive. Divided write data and previous data to be updated may be transferred depending on the write data length.
摘要翻译：磁盘阵列设备选择用于减少开销并提高与生成冗余数据相关联的可靠性的冗余生成方法。磁盘阵列设备包括连接到并控制磁盘驱动器阵列的磁盘控制器。磁盘控制器包括冗余数据生成器，差分数据生成器和冗余数据生成方法选择器。冗余数据生成器能够通过读取和修改方法和全部条纹方法生成冗余数据。磁盘阵列装置从读取和修改的方法以及所有条带中选择产生冗余数据的方法，以及在驱动器中产生的方法和差异方法，这两者都被执行以在盘驱动器上生成冗余数据。磁盘阵列设备选择产生冗余数据的方法，该冗余数据将根据从主机接收到的写入数据的长度来最小化处理，传送和存储接收到的主机数据和生成的冗余数据所需的时间，由主机，磁盘驱动器的当前负载状态，以及磁盘驱动器中是否存在故障状态。可以根据写入数据长度传送分割的写入数据和要更新的先前数据。

8. 发明申请

US20150212752A1 STORAGE SYSTEM REDUNDANT ARRAY OF SOLID STATE DISK ARRAY 审中-公开
标题翻译：存储系统冗余阵列固态盘阵列
公开(公告)号：US20150212752A1
公开(公告)日：2015-07-30
申请号：US14678777
申请日：2015-04-03
申请人： Avalanche Technology, Inc.
发明人： Siamack Nemazie , Mehdi Asnaashari , Ruchirkumar D. Shah
IPC分类号： G06F3/06
CPC分类号： G06F11/108 , G06F3/0616 , G06F3/0652 , G06F3/0688 , G06F11/1096 , G06F12/0246 , G06F2211/1066 , G06F2212/7201 , G06F2212/7203 , G06F2212/7205
摘要： A storage system includes a storage processor coupled to solid state disks (SSDs) and a host, the SSDs are identified by SSD logical block addresses (SLBAs). The storage processor receives a command from the host to write data to the SSDs and further receives a location within the SSDs to write the data, the location being referred to as a host LBA. The storage processor includes a central processor unit (CPU) subsystem and maintains unassigned SLBAs of a corresponding SSD. The CPU subsystem upon receiving the command to write data, generates sub-commands based on a range of host LBAs derived from the received command and further based on a granularity. At least one of the host LBAs is non-sequential relative to the remaining host LBAs. The CPU subsystem assigns the sub-commands to unassigned SLBAs by assigning each sub-command to a distinct SSD of a stripe, the host LBAs being decoupled from the SLBAs. The CPU subsystem continues to assign the sub-commands until all remaining SLBAs of the stripe are assigned, after which it calculates parity for the stripe and saves the calculated parity to one or more of the SSDs of the stripe.
摘要翻译：存储系统包括耦合到固态磁盘（SSD）和主机的存储处理器，SSD由SSD逻辑块地址（SLBA）标识。存储处理器接收来自主机的命令以将数据写入SSD，并进一步接收SSD内的位置以写入数据，该位置被称为主机LBA。存储处理器包括中央处理器单元（CPU）子系统并维护相应SSD的未分配SLBA。 CPU子系统在接收到写入数据的命令时，基于从接收到的命令导出的主机LBA的范围，并且还基于粒度来生成子命令。主机LBA中的至少一个相对于剩余的主机LBA是非顺序的。 CPU子系统通过将每个子命令分配给条带的不同SSD，将主命令LBA与SLAA分离，从而将子命令分配给未分配的SLBA。 CPU子系统继续分配子命令，直到分配了条带的所有剩余的SLB，之后它计算条带的奇偶校验，并将计算的奇偶校验保存到条带的一个或多个SSD。

9. 发明申请

US20150193158A1 SMART MEMORY BUFFERS 有权
公开(公告)号：US20150193158A1
公开(公告)日：2015-07-09
申请号：US14417220
申请日：2012-10-30
申请人： Doe Hyun Yoon , Naveen Murali-Manohar , Jichuan Chang , Parthasarathy Ranganathan
发明人： Doe Hyun Yoon , Naveen Murali-Manohar , Jichuan Chang , Parthasarathy Ranganathan
IPC分类号： G06F3/06
CPC分类号： G06F3/0619 , G06F3/065 , G06F3/0655 , G06F3/0656 , G06F3/0665 , G06F3/0688 , G06F3/0689 , G06F11/108 , G06F2211/1054 , G06F2211/1066
摘要： An example method involves receiving, at a first memory node, data to be written at a memory location in the first memory node. The data is received from a device. At the first memory node, old data is read from the memory location, without sending the old data to the device. The data is written to the memory location. The data and the old data are sent from the first memory node to a second memory node to store parity information in the second memory node without the device determining the parity information. The parity information is based on the data stored in the first memory node.
摘要翻译：一种示例性方法涉及在第一存储器节点处接收要写入第一存储器节点中的存储器位置的数据。从设备接收数据。在第一个存储器节点，从存储器位置读取旧数据，而不将旧数据发送到设备。数据被写入存储器位置。将数据和旧数据从第一存储器节点发送到第二存储器节点，以将奇偶校验信息存储在第二存储器节点中，而不需要设备确定奇偶校验信息。奇偶校验信息基于存储在第一存储器节点中的数据。

10. 发明授权

US07543110B2 Raid controller disk write mask 有权
标题翻译： RAID控制器磁盘写掩码
公开(公告)号：US07543110B2
公开(公告)日：2009-06-02
申请号：US11060884
申请日：2005-02-17
申请人： Michael C. Stolowitz
发明人： Michael C. Stolowitz
IPC分类号： G06F12/00
CPC分类号： G06F11/1076 , G06F2211/1054 , G06F2211/1066
摘要： A RAID disk array controller implements a write mask to support partial-stripe updates from a host system without expensive RAM to RAM copying and repeated disk accesses to assemble the updated stripe. New data from the host is transferred into a single buffer and a local processor tracks—by setting bits in the write mask—which segments of the target stripe are updated. The disk array is accessed to transfer the target stripe into the same buffer, but the buffer memory write enable is inhibited—responsive to the write mask—during transfer of the segments that were updated by the host. The complete, updated stripe is thus formed in a single buffer for parity calculations and write to the disk array.
摘要翻译： RAID磁盘阵列控制器实现写掩码以支持来自主机系统的部分条带更新，而无需昂贵的RAM到RAM复制和重复的磁盘访问以组合更新的条带。来自主机的新数据被传送到单个缓冲器中，并且本地处理器通过设置写掩码中的位来跟踪目标条带的哪些段被更新。访问磁盘阵列以将目标条带传输到相同的缓冲器中，但缓冲存储器写使能在传输由主机更新的段时被禁止 - 响应于写掩码。因此，完整的更新的条带形成在用于奇偶校验计算的单个缓冲器中并写入磁盘阵列。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式