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1. 发明授权

US07134066B2 Generalized parity stripe data storage array 失效
标题翻译：广义奇偶条纹数据存储阵列
公开(公告)号：US07134066B2
公开(公告)日：2006-11-07
申请号：US10689814
申请日：2003-10-20
申请人： Martin Aureliano Hassner , Steven R. Hetzler , Tetsuya Tamura , Barry Marshall Trager , Shmuel Winograd
发明人： Martin Aureliano Hassner , Steven R. Hetzler , Tetsuya Tamura , Barry Marshall Trager , Shmuel Winograd
IPC分类号： G11C29/52 , G11C29/42
CPC分类号： H03M13/2909 , G06F11/1076 , H03M13/134 , H03M13/2906
摘要： The Hamming distance of an array of storage devices is increased by generating a parity check matrix based on column equations that are formed using an orthogonal parity code and includes a higher-order multiplier that changes each column. The higher order multiplier is selected to generate a finite basic field of a predetermined number of elements. The array has M rows and N columns, such that M is greater than or equal to three and N is greater than or equal to three. Row 1 through row M−2 of the array each have n–p data storage devices and p parity storage devices. Row M−1 of the array has n−(p+1) data storage devices and (p+1) parity storage devices. Lastly, row M of the array has N parity storage devices.
摘要翻译：存储装置阵列的汉明距离通过基于使用正交奇偶校验码形成的列方程生成奇偶校验矩阵而增加，并且包括改变每列的高阶乘法器。选择较高阶乘数以产生预定数量的元素的有限基本场。阵列具有M行和N列，使得M大于或等于3，N大于或等于3。阵列的行1至行M-2各自具有n-p个数据存储设备和p个奇偶校验存储设备。该阵列的行M-1具有n（p + 1）数据存储设备和（p + 1）奇偶校验存储设备。最后，数组的行M具有N个奇偶校验存储设备。

2. 发明授权

US06891690B2 On-drive integrated sector format raid error correction code system and method 有权
标题翻译：驱动集成扇区格式raid纠错码系统及方法
公开(公告)号：US06891690B2
公开(公告)日：2005-05-10
申请号：US10301151
申请日：2002-11-20
申请人： Hideo Asano , Martin Aureliano Hassner , Nyles Norbert Heise , Steven R. Hetzler , Tetsuya Tamura
发明人： Hideo Asano , Martin Aureliano Hassner , Nyles Norbert Heise , Steven R. Hetzler , Tetsuya Tamura
IPC分类号： G06F11/10 , G06F11/00 , G11B5/09 , G11B20/18 , H03M13/00 , H03M13/03 , H03M13/11 , H03M13/15 , H03M13/29 , H03M13/47
CPC分类号： H03M13/25 , G06F11/1076 , G06F2211/104 , H03M13/1515 , H03M13/29 , H03M13/47
摘要： An encoding system and associated method protect against miscorrection due to parity sector correction in, for example, an on-drive RAID system. The system adds a parity cluster block, which itself is a complete, C3-protected cluster. Having the cluster level, C4 level correction, by parity sectors, checked and verified by C3 checks that have high reliability level, as well as the capability for checking consistency of a cluster block, even in the presence of “jami” errors, makes this possibility unlikely. A scrub algorithm avoids read-modify-write operations by deferring the completion of the C2 and C3-ckecks until the storage device is idle.
摘要翻译：编码系统和相关联的方法防止在例如驱动器上的RAID系统中的奇偶校验扇区校正时的错误修复。该系统添加了一个奇偶校验集群块，它本身是一个完整的C3保护集群。具有集群级别，C4级校正，奇偶校验扇区，由具有高可靠性级别的C3检查检查和验证，以及检查集群块的一致性的能力，即使存在“jami”错误，这使得可能性不大擦除算法通过推迟C2和C3-ckecks的完成直到存储设备空闲来避免读取 - 修改 - 写入操作。

3. 发明授权

US06928515B2 Integrated sector format-error correction code system and method for efficient writing in a disk array system 失效
标题翻译：集成扇区格式纠错码系统和方法，用于在磁盘阵列系统中高效写入
公开(公告)号：US06928515B2
公开(公告)日：2005-08-09
申请号：US10291087
申请日：2002-11-09
申请人： Martin Aureliano Hassner , Steven R. Hetzler , Spencer W. Ng
发明人： Martin Aureliano Hassner , Steven R. Hetzler , Spencer W. Ng
IPC分类号： G06F11/10 , G06F12/00
CPC分类号： G06F11/1076 , G06F2211/1011
摘要： A system and associated method efficiently complete write commands in an ISF disk drive/RAID system with minimal disk accesses to the underlying disk drives. The system updates data in a parity-based disk array system by receiving a write command to write new data. The present system minimizes the number of disk accesses. The present system completes the same or comparable write commands in a total of four accesses to the disk drives. This is realized by combining the read-modify-write operation of updating one or more sectors in an ISF cluster with the read-modify-write operation associated with updating one or more sectors in a parity-based array system, such as a RAID-5 system.
摘要翻译：系统和相关方法可有效地完成在ISF磁盘驱动器/ RAID系统中的写入命令，同时对磁盘驱动器的磁盘访问最少。系统通过接收写入新数据的写入命令来更新基于奇偶校验的磁盘阵列系统中的数据。本系统使磁盘访问次数最小化。本系统在对磁盘驱动器的总共四次访问中完成相同或相当的写入命令。这通过将在ISF群集中更新一个或多个扇区的读取 - 修改 - 写入操作与基于奇偶校验的阵列系统中的更新一个或多个扇区（例如RAID- 5系统。

4. 发明申请

US20130205181A1 PARTIAL-MAXIMUM DISTANCE SEPARABLE (PMDS) ERASURE CORRECTING CODES FOR STORAGE ARRAYS 有权
标题翻译：用于存储阵列的部分最大距离分离（PMDS）擦除代码
公开(公告)号：US20130205181A1
公开(公告)日：2013-08-08
申请号：US13364390
申请日：2012-02-02
申请人： Mario Blaum , James L. Hafner , Steven R. Hetzler
发明人： Mario Blaum , James L. Hafner , Steven R. Hetzler
IPC分类号： H03M13/05 , G06F11/10
CPC分类号： G06F11/1076 , G06F11/108 , G06F11/1092 , G06F2211/1057 , G06F2211/1059 , H03M13/033
摘要： Embodiments of the invention relate to storing data in a storage array. An aspect of the invention includes receiving and arranging read data in array that includes m rows and n columns of entries, with each entry including at least one sector. In the array, mr+s locations are assigned to parity entries, such that each row has at least r parity entries. The parity entries correspond to a partial-maximum distance separable (PMDS) code that allows recovery from up to r erasures in each of the m rows as well as s additional erasures in any locations in the data array, where s is an integer greater than zero. The write data and the associated parity entries are written to the set of storage devices.
摘要翻译：本发明的实施例涉及将数据存储在存储阵列中。本发明的一个方面包括接收和排列包括m行和n列条目的阵列中的读取数据，其中每个条目包括至少一个扇区。在阵列中，mr + s位置被分配给奇偶校验项，使得每行至少具有r个奇偶校验项。奇偶校验条目对应于部分最大距离可分离（PMDS）码，其允许从m行中的每个m行中恢复到最多的擦除以及在数据阵列中的任何位置的附加擦除，其中s是大于零。将写入数据和相关联的奇偶校验条目写入存储设备集合。

5. 发明申请

US20120221920A1 MULTIPLE ERASURE CORRECTING CODES FOR STORAGE ARRAYS 有权
标题翻译：用于存储阵列的多个擦除修正代码
公开(公告)号：US20120221920A1
公开(公告)日：2012-08-30
申请号：US13036817
申请日：2011-02-28
申请人： Mario Blaum , James L. Hafner , Steven R. Hetzler , Daniel F. Smith
发明人： Mario Blaum , James L. Hafner , Steven R. Hetzler , Daniel F. Smith
IPC分类号： G11C29/00
CPC分类号： G06F11/108 , G11C2029/0411
摘要： Embodiments of the invention relate to erasure correcting codes for storage arrays. An aspect of the invention includes receiving a read stripe from a plurality of storage devices. The read stripe includes a block of pages arranged in rows and columns, with each column corresponding to one of the storage devices. The pages include data pages and parity pages, with the number of parity pages at least one more than the number of rows and not a multiple of the number of rows. The method further includes reconstructing at least one erased page in response to determining that the read stripe includes the at least one erased page and that the number of erased pages is less than or equal to the number of parity pages. The reconstructing is responsive to a multiple erasure correcting code and to the block of pages. The reconstructing results in a recovered read stripe.
摘要翻译：本发明的实施例涉及存储阵列的擦除校正码。本发明的一个方面包括从多个存储设备接收读取条带。读取条带包括以行和列排列的页面块，每一列对应于其中一个存储设备。这些页面包括数据页和奇偶校验页，奇偶校验页的数量至少比行数多一个，而不是行数的倍数。所述方法还包括响应于确定所述读取条带包括所述至少一个已擦除页面并且所述擦除页面的数量小于或等于所述奇偶校验页数来重构至少一个已擦除页面。重建响应于多个擦除校正码和页块。重建导致恢复的读取条带。

6. 发明授权

US07783783B2 SCSI device translator for network 有权
标题翻译：用于网络的SCSI设备翻译器
公开(公告)号：US07783783B2
公开(公告)日：2010-08-24
申请号：US10102930
申请日：2002-03-22
申请人： Steven R. Hetzler , Daniel F. Smith
发明人： Steven R. Hetzler , Daniel F. Smith
IPC分类号： G06F15/16
CPC分类号： G06F3/0601 , G06F2003/0697 , H04L69/08
摘要： A system and method for interfacing a non-SCSI device to a computer network for communicating with a SCSI device attached to the computer network is disclosed. An interface receives a SCSI-based communication message from the network that is intended for the non-SCSI device. The SCSI-based communication can be formatted for transport over, for example, a TCP/IP transport stream and includes, for example, a command descriptor block and accompanying data. A translator device converts a first SCSI-based communication message to a corresponding first non-SCSI communication message that is recognizable by the non-SCSI device. A translator device also receives a second non-SCSI communication message from the non-SCSI device and converts the second non-SCSI communication message into a corresponding second SCSI-based communication message. The interface device, responsive to the second SCSI-based communication message, sends the second SCSI based communication message to the network.
摘要翻译：公开了一种用于将非SCSI设备连接到计算机网络以与连接到计算机网络的SCSI设备进行通信的系统和方法。接口从网络接收用于非SCSI设备的基于SCSI的通信消息。基于SCSI的通信可以被格式化以用于例如TCP / IP传输流的传输，并且包括例如命令描述符块和伴随的数据。翻译器设备将第一基于SCSI的通信消息转换成可由非SCSI设备识别的对应的第一非SCSI通信消息。翻译设备还从非SCSI设备接收第二非SCSI通信消息，并将第二非SCSI通信消息转换为对应的第二基于SCSI的通信消息。响应于第二基于SCSI的通信消息的接口设备将第二基于SCSI的通信消息发送到网络。

7. 发明申请

US20080276146A1 INCOMPLETE WRITE PROTECTION FOR DISK ARRAY 有权
公开(公告)号：US20080276146A1
公开(公告)日：2008-11-06
申请号：US12059011
申请日：2008-03-31
申请人： Steven R. Hetzler , Daniel F. Smith
发明人： Steven R. Hetzler , Daniel F. Smith
IPC分类号： H03M13/05 , G06F11/10
CPC分类号： G06F11/1441 , G06F11/1076 , G06F2211/1057
摘要： The embodiments of the invention provide methods of protecting data blocks while writing to a storage array, wherein storage units in the storage array include write logs. The data protection level of the write logs is equal to or greater than the data protection level of the storage units. Moreover, the write logs have metadata describing contents of the write logs, wherein the metadata include a sequence number identifying the age of the metadata. Each of the data blocks is a member of a parity group having addressable data blocks and first parity blocks. The addressable data blocks have at least one host data block and at least one associated data block.

8. 发明授权

US07134139B2 System and method for authenticating block level cache access on network 有权
公开(公告)号：US07134139B2
公开(公告)日：2006-11-07
申请号：US10076732
申请日：2002-02-12
申请人： Steven R. Hetzler , Daniel Felix Smith
发明人： Steven R. Hetzler , Daniel Felix Smith
IPC分类号： H04L9/32
CPC分类号： H04L67/1097 , G06F12/0813 , G06F12/0866 , G06F21/445 , H04L63/08 , H04L63/0807
摘要： A data cache for an iSCSI network caches block-level data from WAN servers for use by clients (e.g., LANs). The cache authenticates itself to the WAN servers, and authenticates clients requesting cache access. Mechanisms are provided to prevent clients from accessing cached data intended for other clients.

9. 发明授权

US5615190A Fixed- block architecture embedded servo disk drive without data identification (ID) regions 失效
标题翻译：固定块架构嵌入式伺服磁盘驱动器，无需数据识别（ID）区域
公开(公告)号：US5615190A
公开(公告)日：1997-03-25
申请号：US469066
申请日：1995-06-06
申请人： John S. Best , Steven R. Hetzler
发明人： John S. Best , Steven R. Hetzler
IPC分类号： G11B20/10 , G11B20/12 , G11B20/18 , G11B27/10 , G11B27/30 , G11B7/00
CPC分类号： G11B20/1883 , G11B20/1252 , G11B27/3027 , G11B2020/1234 , G11B2020/1255 , G11B2220/20
摘要： A data recording disk drive is provided with a fixed block architecture sector format that eliminates the ID region. The servo region contains sector identification information in the form of a start-of-track indicating mark recorded in a selected sector of each track and a start-of sector indicating mark recorded in each sector. A full track number identifier is encoded in the position field within the servo region of each sector. A look-up table is built at format time to map bad sectors out of the disk drive. The table contains entries for each cluster of contiguous bad sectors, and is searched at runtime to provide conversion of logical sector location identifiers to physical sector location identifiers.
摘要翻译：数据记录磁盘驱动器具有消除ID区域的固定块结构扇区格式。伺服区域包含记录在每个轨道的选定扇区中的轨迹开始指示标记的形式的扇区识别信息，以及记录在每个扇区中的开始扇区指示标记。在每个扇区的伺服区域内的位置字段中编码完整轨道号标识符。在格式化时间内建立查表，以将坏扇区映射出磁盘驱动器。该表包含连续坏扇区的每个簇的条目，并且在运行时搜索以提供逻辑扇区位置标识符到物理扇区位置标识符的转换。

10. 发明授权

US5523903A Sector architecture for fixed block disk drive 失效
标题翻译：固定块磁盘驱动器的扇区架构
公开(公告)号：US5523903A
公开(公告)日：1996-06-04
申请号：US173541
申请日：1993-12-23
申请人： Steven R. Hetzler , William J. Kabelac
发明人： Steven R. Hetzler , William J. Kabelac
IPC分类号： G11B5/55 , G11B5/56 , G11B5/596 , G11B19/12 , G11B20/10 , G11B20/12 , G11B20/18 , G11B21/08 , G11B21/10 , G11B27/30
CPC分类号： G11B20/10 , G11B19/12 , G11B20/1258 , G11B21/083 , G11B21/106 , G11B27/3027 , G11B5/5526 , G11B5/59655 , G11B20/1883 , G11B20/1889 , G11B2020/1234 , G11B2020/1282 , G11B2220/20
摘要： A sector servo, zone bit recording disk drive includes a sector architecture in which the recording head locates and identifies data sectors without using data ID fields, but instead using information obtained from electronic storage and from servo sectors which need not be adjacent to the data sectors. The tracks contain servo information and data, but not data sector ID information. The tracks in each zone are circumferentially divided into segments. Included in each segment is a number of data regions separated from one another by servo sectors. The data regions may contain partial data sectors and complete data sectors. The format information provided to identify and locate data sectors, including ones whose region locations are not adjacent to servo sectors, includes an entry for each region in the section. Each entry includes the lengths of the first and last data sections in the region, whether the sectors represented by those sections are split between two regions, the total number of data sectors in the region, and the sector number of the first data sector in the region. The information provided in the servo sectors consists of a servo sector number or other indicia which enables the disk drive to determine the position of the recording head and begin reading or writing immediately upon settling on-track and without incurring a latency penalty.
摘要翻译：扇区伺服，区位记录盘驱动器包括扇区架构，其中记录头在不使用数据ID字段的情况下定位和识别数据扇区，而是使用从电子存储器获取的信息和从不与数据扇区相邻的伺服扇区。轨道包含伺服信息和数据，但不包含数据扇区ID信息。每个区域中的轨迹被圆周地划分成段。包括在每个段中的是通过伺服扇区彼此分离的多个数据区域。数据区域可以包含部分数据扇区和完整的数据扇区。提供用于识别和定位数据扇区的格式信息，包括其区域位置不与伺服扇区相邻的扇区，包括该区段中每个区域的条目。每个条目包括该区域中的第一和最后数据段的长度，由这些部分表示的扇区是否在两个区域之间分割，该区域中的数据扇区的总数以及该区域中的第一数据扇区的扇区号地区。提供在伺服扇区中的信息包括伺服扇区号或其他标记，其使得磁盘驱动器能够确定记录头的位置，并在轨道上稳定并立即开始读取或写入，而不会造成延迟损失。

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