公开(公告)号：US08762638B2

公开(公告)日：2014-06-24

申请号：US13379186

申请日：2011-12-08

申请人： Junichi Hara ,  Junji Ogawa

发明人： Junichi Hara ,  Junji Ogawa

IPC分类号： G11C29/00 ,  G06F11/10

CPC分类号： G06F3/065 ,  G06F3/0626 ,  G06F3/0632 ,  G06F3/064 ,  G06F3/0658 ,  G06F3/0685 ,  G06F3/0689 ,  G06F11/1076 ,  G06F2212/401

摘要： A first storage system comprises a first RAID group comprising multiple first storage devices, which constitute the basis of a first logical volume. A second storage system comprises a second RAID group comprising multiple second storage devices, which constitute the basis of a second logical volume. The RAID configuration of the first RAID group and the RAID configuration of the second RAID group are the same, and the type of a compression/decompression function of the respective first storage devices and the type of a compression/decompression function of the respective second storage devices are the same. Compressed data is read from a first storage device without being decompressed with respect to the data inside a first logical volume, and the read compressed data is written to a second storage device, which is in the same location in RAID in the second RAID group as the location in RAID of this first storage device.

摘要翻译： 第一存储系统包括构成第一逻辑卷的基础的多个第一存储设备的第一RAID组。 第二存储系统包括构成第二逻辑卷的基础的多个第二存储设备的第二RAID组。 第一RAID组的RAID配置和第二RAID组的RAID配置是相同的，并且相应的第一存储设备的压缩/解压缩功能的类型和相应的第二存储器的压缩/解压缩功能的类型 设备是一样的 从第一存储装置读取压缩数据而不对第一逻辑卷内的数据进行解压缩，并且将读取的压缩数据写入第二存储装置，该第二存储装置与第二RAID组中的RAID中的相同位置作为 该第一存储设备的RAID中的位置。

公开(公告)号：US20130151770A1

公开(公告)日：2013-06-13

申请号：US13379186

申请日：2011-12-08

申请人： Junichi Hara ,  Junji Ogawa

发明人： Junichi Hara ,  Junji Ogawa

IPC分类号： G06F12/08

CPC分类号： G06F3/065 ,  G06F3/0626 ,  G06F3/0632 ,  G06F3/064 ,  G06F3/0658 ,  G06F3/0685 ,  G06F3/0689 ,  G06F11/1076 ,  G06F2212/401

摘要： A first storage system comprises a first RAID group comprising multiple first storage devices, which constitute the basis of a first logical volume. A second storage system comprises a second RAID group comprising multiple second storage devices, which constitute the basis of a second logical volume. The RAID configuration of the first RAID group and the RAID configuration of the second RAID group are the same, and the type of a compression/decompression function of the respective first storage devices and the type of a compression/decompression function of the respective second storage devices are the same. Compressed data is read from a first storage device without being decompressed with respect to the data inside a first logical volume, and the read compressed data is written to a second storage device, which is in the same location in RAID in the second RAID group as the location in RAID of this first storage device.

摘要翻译： 第一存储系统包括构成第一逻辑卷的基础的多个第一存储设备的第一RAID组。 第二存储系统包括构成第二逻辑卷的基础的多个第二存储设备的第二RAID组。 第一RAID组的RAID配置和第二RAID组的RAID配置是相同的，并且相应的第一存储设备的压缩/解压缩功能的类型和相应的第二存储器的压缩/解压缩功能的类型 设备是一样的 从第一存储装置读取压缩数据而不对第一逻辑卷内的数据进行解压缩，并且将读取的压缩数据写入第二存储装置，该第二存储装置与第二RAID组中的RAID中的相同位置作为 该第一存储设备的RAID中的位置。

公开(公告)号：US09063663B2

公开(公告)日：2015-06-23

申请号：US12936176

申请日：2010-09-21

申请人： Akifumi Suzuki ,  Atsushi Kawamura ,  Junji Ogawa

发明人： Akifumi Suzuki ,  Atsushi Kawamura ,  Junji Ogawa

IPC分类号： G06F12/00 ,  G06F3/06 ,  G06F13/00

CPC分类号： G06F3/064 ,  G06F3/0608 ,  G06F3/0688

摘要： The flash memory controller compresses data in response to a write request. On condition that there is a compression effect with respect to the compressed data, the flash memory controller writes the compressed data to the base area of a physical block of a flash memory. As physical pages assigned to the physical block, the flash memory controller reduces the physical pages assigned to the base area from 102 down to 59, and increases the physical pages assigned to the update area from 26 up to 69. Therefore, it is possible to suppress exhaustion of physical pages which are assigned to the update area, to reduce the number of erases of the physical block, and to consequently prolong device operating life.

摘要翻译： 闪存控制器响应于写请求压缩数据。 在对压缩数据存在压缩效果的情况下，闪存控制器将压缩数据写入闪存的物理块的基本区域。 作为分配给物理块的物理页面，闪存控制器将分配给基地区的物理页面从102降低到59，并将分配给更新区域的物理页面从26增加到69.因此，可以 抑制分配给更新区域的物理页面的耗尽，减少物理块的擦除次数，从而延长设备的使用寿命。

公开(公告)号：US08984211B2

公开(公告)日：2015-03-17

申请号：US13519462

申请日：2011-12-21

申请人： Tsukasa Shibayama ,  Akifumi Suzuki ,  Nobuhiro Maki ,  Junji Ogawa ,  Masayasu Asano

发明人： Tsukasa Shibayama ,  Akifumi Suzuki ,  Nobuhiro Maki ,  Junji Ogawa ,  Masayasu Asano

IPC分类号： G06F12/02 ,  G11C11/56 ,  G11C29/00

CPC分类号： G06F3/0604 ,  G06F3/0625 ,  G06F3/0644 ,  G06F3/0688 ,  G06F3/0689 ,  G06F12/0246 ,  G06F2212/7207 ,  G11C11/5621 ,  G11C29/82 ,  Y02D10/13

摘要： A storage system, which comprises multiple memory cells and a storage controller, wherein the storage controller manages cell mode information, which either directly or indirectly denotes the number of bits to be stored in multiple memory cells. The cell mode information can be changed in accordance with a request from a management system.

摘要翻译： 一种存储系统，其包括多个存储器单元和存储控制器，其中所述存储控制器管理单元模式信息，所述单元模式信息直接或间接地表示要存储在多个存储器单元中的位数。 小区模式信息可以根据来自管理系统的请求而改变。

公开(公告)号：US20140304451A1

公开(公告)日：2014-10-09

申请号：US13519462

申请日：2011-12-21

申请人： Tsukasa Shibayama ,  Akifumi Suzuki ,  Nobuhiro Maki ,  Junji Ogawa ,  Masayasu Asano

发明人： Tsukasa Shibayama ,  Akifumi Suzuki ,  Nobuhiro Maki ,  Junji Ogawa ,  Masayasu Asano

IPC分类号： G06F12/02

CPC分类号： G06F3/0604 ,  G06F3/0625 ,  G06F3/0644 ,  G06F3/0688 ,  G06F3/0689 ,  G06F12/0246 ,  G06F2212/7207 ,  G11C11/5621 ,  G11C29/82 ,  Y02D10/13

摘要： A storage system, which comprises multiple memory cells and a storage controller, wherein the storage controller manages cell mode information, which either directly or indirectly denotes the number of bits to be stored in multiple memory cells. The cell mode information can be changed in accordance with a request from a management system.

摘要翻译： 一种存储系统，其包括多个存储器单元和存储控制器，其中所述存储控制器管理单元模式信息，所述单元模式信息直接或间接地表示要存储在多个存储器单元中的位数。 小区模式信息可以根据来自管理系统的请求而改变。

公开(公告)号：US08832371B2

公开(公告)日：2014-09-09

申请号：US13125618

申请日：2011-04-04

申请人： Go Uehara ,  Koji Sonoda ,  Junji Ogawa

发明人： Go Uehara ,  Koji Sonoda ,  Junji Ogawa

IPC分类号： G06F12/00 ,  G06F13/00 ,  G06F13/28 ,  G06F11/10 ,  G06F12/02 ,  G06F3/06

CPC分类号： G06F3/064 ,  G06F3/0616 ,  G06F3/0688 ,  G06F11/1044 ,  G06F11/108 ,  G06F12/0246 ,  G06F2211/1059 ,  G06F2212/7211

摘要： A storage system having multiple flash memory packages including flash memory chips and package controllers for controlling access to the flash memory chips is configured such that the package controller receives from a higher-level apparatus, which sends a write request, frequency prediction information that enables prediction of an update frequency with respect to data, which is to be a write target, and when writing data for which a write request has been issued from the higher-level apparatus, control is executed such that data, which is predicted to have a relatively high update frequency based on the frequency prediction information, is preferentially stored in a physical block with the large remaining number of erases in a flash memory chip of flash memory package of the package controller, or such that data, which is predicted to have a relatively low update frequency based on the frequency prediction information, is preferentially stored in a physical block with the small remaining number of erases in a flash memory chip of the flash memory package of the package controller.

摘要翻译： 配置具有多个快闪存储器包的存储系统，包括用于控制对闪速存储器芯片的访问的闪速存储器芯片和封装控制器，使得封装控制器从发送写入请求的更高级别的装置接收能够预测的频率预测信息 相对于作为写入目标的数据的更新频率，并且当写入从较高级别装置发出写请求的数据时，执行控制，使得预测相对于 基于频率预测信息的高更新频率优先存储在具有大量剩余擦除次数的物理块中，所述剩余数量在封装控制器的闪速存储器包的闪速存储器芯片中，或者使得预测具有相对 基于频率预测信息的低更新频率优先存储在具有小rema的物理块中 在包装控制器的闪速存储器包的闪速存储器芯片中引入擦除次数。

公开(公告)号：US08806108B2

公开(公告)日：2014-08-12

申请号：US13141930

申请日：2011-06-07

申请人： Akifumi Suzuki ,  Junji Ogawa

发明人： Akifumi Suzuki ,  Junji Ogawa

IPC分类号： G06F12/00

CPC分类号： G06F3/064 ,  G06F3/0608 ,  G06F3/0616 ,  G06F3/0688 ,  G06F12/0246 ,  G06F2212/1036 ,  G06F2212/401 ,  G06F2212/7201 ,  G06F2212/7202 ,  G06F2212/7204 ,  G06F2212/7207

摘要： A semiconductor storage apparatus including a flash memory which provides a storage area, and a memory controller which controls the reading and writing of data from and to the flash memory, wherein the storage area of the flash memory is configured from a plurality of write areas, and wherein the memory controller divides the data into a size corresponding to the write area, and changes the starting location of writing the data each time the divided data is written into the write area.

摘要翻译： 一种包括提供存储区域的闪速存储器的半导体存储装置和控制从闪速存储器读取数据的存储器控​​制器，其中闪速存储器的存储区域由多个写入区域构成， 并且其中所述存储器控制器将所述数据划分为与所述写入区域对应的大小，并且每当所述划分的数据被写入所述写入区域时，改变写入所述数据的开始位置。

公开(公告)号：US20130205070A1

公开(公告)日：2013-08-08

申请号：US13391728

申请日：2012-02-08

申请人： Hideyuki Koseki ,  Junji Ogawa

发明人： Hideyuki Koseki ,  Junji Ogawa

IPC分类号： G06F12/00

CPC分类号： G06F3/0605 ,  G06F3/0608 ,  G06F3/0616 ,  G06F3/0647 ,  G06F3/0659 ,  G06F3/0665 ,  G06F3/067 ,  G06F3/0688

摘要： A storage apparatus is provided with a plurality of nonvolatile semiconductor storage media and a storage controller that is a controller that is coupled to the plurality of semiconductor storage media. The storage controller identifies a first semiconductor storage unit that is at least one semiconductor storage media and a second semiconductor storage unit that is at least one semiconductor storage media and that is provided with a remaining length of life shorter than that of the first semiconductor storage unit based on the remaining life length information that has been acquired. The storage controller moreover identifies a first logical storage region for the first semiconductor storage unit and a second logical storage region that is provided with a write load higher than that of the first logical storage region for the second semiconductor storage unit based on the statistics information that indicates the statistics that is related to a write for every logical storage region. The storage controller reads data from the first logical storage region and the second logical storage region, and writes data that has been read from the first logical storage region to the second logical storage region and/or writes data that has been read from the second logical storage region to the first logical storage region.

摘要翻译： 存储装置设置有多个非易失性半导体存储介质和作为耦合到多个半导体存储介质的控制器的存储控制器。 存储控制器识别作为至少一个半导体存储介质的第一半导体存储单元和至少一个半导体存储介质的第二半导体存储单元，并且具有比第一半导体存储单元短的剩余寿命长度 基于已经获得的剩余寿命信息。 此外，存储控制器还根据统计信息来识别第一半导体存储单元的第一逻辑存储区域和第二逻辑存储区域，该第二逻辑存储区域具有比第二半导体存储单元的第一逻辑存储区域的写入负载更高的写入负载 指示与每个逻辑存储区域的写入相关的统计信息。 存储控制器从第一逻辑存储区域和第二逻辑存储区域读取数据，并且将从第一逻辑存储区域读取的数据写入第二逻辑存储区域和/或写入从第二逻辑存储区域读取的数据 存储区域到第一逻辑存储区域。

公开(公告)号：US08352676B2

公开(公告)日：2013-01-08

申请号：US12992028

申请日：2010-10-26

申请人： Atsushi Kawamura ,  Junji Ogawa

发明人： Atsushi Kawamura ,  Junji Ogawa

IPC分类号： G06F11/10

CPC分类号： G11C16/0483 ,  G06F3/0608 ,  G06F3/0616 ,  G06F3/0641 ,  G06F3/0679 ,  G06F3/0688 ,  G06F11/1044 ,  G06F11/108 ,  G06F12/0246 ,  G06F2212/7202 ,  G11C16/04

摘要： Data capacity efficiency is improved by de-duplicating data assigned with a code that is different for each data.A storage apparatus comprising a flash memory control device equipped with one or more flash memory modules, wherein the flash memory module comprises at least one flash memory chip for providing a storage area, and a controller for controlling writing/reading of data including user data and a guarantee code accompanying the user data to and from the storage area provided by the flash memory chip, wherein the controller respectively divides a plurality of the data having the common user data into the user data and the guarantee code, stores one of the user data in an area of a predetermined unit of the storage area, and links and stores each of the guarantee codes accompanying the plurality of user data in an area of a predetermined unit of the storage area.

摘要翻译： 通过使用与每个数据不同的代码分配的数据进行解除复制来提高数据容量效率。 一种存储装置，包括配备有一个或多个闪速存储器模块的闪速存储器控制装置，其中所述闪速存储器模块包括用于提供存储区域的至少一个闪速存储器芯片，以及用于控制对包括用户数据的数据的写入/读取的控制器， 伴随着闪存芯片所提供的存储区域的用户数据的保证码，其中控制器分别将具有公共用户数据的多个数据划分成用户数据和保证码，存储用户数据之一 在所述存储区域的预定单位的区域中，在所述存储区域的预定单位的区域中链接并存储伴随所述多个用户数据的每个所述保证码。

公开(公告)号：US08291162B2

公开(公告)日：2012-10-16

申请号：US13234507

申请日：2011-09-16

申请人： Manabu Kitamura ,  Junji Ogawa ,  Shunji Kawamura ,  Takao Sato ,  Naoto Matsunami ,  Shintaro Ito ,  Tomohiro Yoshihara ,  Takuji Ogawa

发明人： Manabu Kitamura ,  Junji Ogawa ,  Shunji Kawamura ,  Takao Sato ,  Naoto Matsunami ,  Shintaro Ito ,  Tomohiro Yoshihara ,  Takuji Ogawa

IPC分类号： G06F12/16 ,  H03M13/11

CPC分类号： G06F11/1076 ,  G06F2211/1014

摘要： One code (a compressed redundant code) is created based on a plurality of first redundant codes, each created on the basis of a plurality of data units, and this compressed redundant code is written to a nonvolatile storage area. This compressed redundant code is used to restore either a data element constituting a multiple-failure data, or a first redundant code corresponding to the multiple-failure data, which is stored in an unreadable sub-storage area of a partially failed storage device, and to restore the data element constituting the multiple-failure data which is stored in a sub-storage area of a completely failed storage device, based on the restored either data element or first redundant code, and either another data element constituting the multiple-failure data or the first redundant code corresponding to the multiple-failure data.

摘要翻译： 基于多个基于多个数据单元创建的多个第一冗余代码来创建一个代码（压缩冗余代码），并将该压缩的冗余代码写入非易失性存储区域。 该压缩冗余代码用于恢复存储在部分故障存储设备的不可读子存储区域中的构成多故障数据的数据元素或对应于多故障数据的第一冗余代码，以及 基于恢复的数据元素或第一冗余代码，恢复存储在完全失败的存储设备的子存储区域中的构成多故障数据的数据元素，以及构成多故障数据的另一数据元素 或对应于多故障数据的第一冗余码。