公开(公告)号：US07389396B1

公开(公告)日：2008-06-17

申请号：US11114648

申请日：2005-04-25

Applicant: Atul Goel ,  Todd Mills ,  Rajesh Sundaram ,  Douglas Coatney

Inventor： Atul Goel ,  Todd Mills ,  Rajesh Sundaram ,  Douglas Coatney

IPC: G06F12/00

CPC classification number: G06F11/2094 ,  G06F11/0727 ,  G06F11/0793

Abstract: A storage system with an array of redundant storage devices places bounds on access request servicing. If a storage device is unable to service the access request within the bounds, the storage system temporarily, individually offlines the specific storage device. Access requests pending for the storage device may be serviced by other storage devices of the redundant array while the storage device is offline. The offline storage device can perform error recovery and be brought back online by the system when error recovery has completed.

Abstract translation: 具有冗余存储设备阵列的存储系统对访问请求服务设置了界限。 如果存储设备无法在边界范围内服务访问请求，则临时存储系统会分离出特定的存储设备。 当存储设备脱机时，存储设备的待处理访问请求可能由冗余阵列的其他存储设备提供服务。 离线存储设备可以执行错误恢复，并在错误恢复完成后由系统恢复联机。

公开(公告)号：US07380156B2

公开(公告)日：2008-05-27

申请号：US11638890

申请日：2006-12-14

Applicant: Steven H. Rodrigues ,  Rajesh Sundaram

Inventor： Steven H. Rodrigues ,  Rajesh Sundaram

IPC: G06F11/00

CPC classification number: G06F11/008 ,  G06F11/1076 ,  G06F2211/104 ,  G06F2211/1088

Abstract: A system and method for managing a time-limited long-running process that acts upon disks of a disk array is based upon a general rule of acting upon each disk in an order based upon the length of time from when it was last acted-upon. Disks having the greatest last acted-upon time value (e.g. were processed the longest-time ago) are queued first by the process for acting-upon in the present run. The greatest last acted-upon time includes disks that have no prior last acted-upon time (e.g. newly added/mounted disks). A registry key entry is maintained in a registry file for each of the RAID groups that includes the volume's file system identifier (FSID) and particular RAID group identifier (RGID). The RGID includes the last acted-upon time for the RAID group. This is set to a positive time number if the process has last acted-upon the group to completion. Alternatively, the last acted-upon time value is set to zero if the volume has not previously been acted-upon to completion or the RAID group is newly mounted.

Abstract translation: 用于管理作用在磁盘阵列的磁盘上的受时间限制的长时间运行进程的系统和方法基于基于从最后一次执行的时间长度的顺序对每个磁盘执行的一般规则 。 最后一次执行时间最大值的磁盘（例如，最早处理的磁盘）首先由当前运行的进程排队。 最大的最后一个动作时间包括没有先前最后一次动作的磁盘（例如新添加/安装的磁盘）。 对于包含卷的文件系统标识符（FSID）和特定RAID组标识符（RGID）的每个RAID组，注册表项保留在注册表文件中。 RGID包括RAID组的最后一个动作时间。 如果进程最后一次执行，则将其设置为正时间号码 - 完成该组。 或者，如果卷以前未被执行完毕或RAID组新安装，则最后一个动作时间值被设置为零。

公开(公告)号：US07203796B1

公开(公告)日：2007-04-10

申请号：US10693513

申请日：2003-10-24

Applicant: Nitin Muppalaneni ,  Abhijeet P. Gole ,  Michael L. Federwisch ,  Mark Smith ,  Rajesh Sundaram

Inventor： Nitin Muppalaneni ,  Abhijeet P. Gole ,  Michael L. Federwisch ,  Mark Smith ,  Rajesh Sundaram

IPC: G06F12/16

CPC classification number: G06F11/2076 ,  G06F2201/855

Abstract: A synchronous data mirroring technique includes a log forwarding process and a consistency point (CP) process. During log forwarding, a source storage server receives write requests from clients, creates a log entry for each request in nonvolatile memory, and transmits each log entry to a destination storage server at a mirror site. The destination storage server writes each log entry to a file. If a primary volume becomes inaccessible due to a failure, the file is used to produce an updated mirror volume. The CP process includes updating a primary volume based on the write requests, and updating the mirror volume to reflect the updated primary volume. The mirror volume is updated by transmitting CP data from the source storage server to the destination storage server, and using the CP data to update the mirror volume through a network administration layer and a storage layer in the destination storage server.

Abstract translation: 同步数据镜像技术包括日志转发过程和一致性点（CP）过程。 在日志转发期间，源存储服务器从客户端接收写入请求，为非易失性存储器中的每个请求创建日志条目，并将每个日志条目发送到镜像站点上的目标存储服务器。 目标存储服务器将每个日志条目写入文件。 如果由于故障导致主卷变得无法访问，则该文件用于生成更新的镜像卷。 CP进程包括基于写入请求更新主卷，并更新镜像卷以反映更新的主卷。 通过从源存储服务器发送CP数据到目标存储服务器，并使用CP数据通过目标存储服务器中的网络管理层和存储层更新镜像卷来更新镜像卷。

公开(公告)号：US06789027B2

公开(公告)日：2004-09-07

申请号：US10436745

申请日：2003-05-12

Applicant: Sandeep K. Guliani ,  Rajesh Sundaram ,  Hari M. Rao ,  Johnny Javanifard

Inventor： Sandeep K. Guliani ,  Rajesh Sundaram ,  Hari M. Rao ,  Johnny Javanifard

IPC: G11C1300

CPC classification number: G11C5/147 ,  G11C16/225

Abstract: A method for voltage detection and lockout. The method of one embodiment first compares a reference voltage to a supply voltage to determine whether the voltage supply voltage is greater than the reference voltage. The reference voltage is validated by determining whether the reference voltage is at least a valid voltage potential. An unlock signal is generated if the supply voltage is greater than the reference voltage and if the reference voltage is valid.

Abstract translation: 一种电压检测和锁定的方法。 一个实施例的方法首先将参考电压与电源电压进行比较，以确定电压电源电压是否大于参考电压。 参考电压通过确定参考电压是否至少是有效的电压电位来验证。 如果电源电压大于参考电压，并且参考电压有效，则产生解锁信号。

公开(公告)号：US06614210B2

公开(公告)日：2003-09-02

申请号：US10026593

申请日：2001-12-18

Applicant: Rajesh Sundaram ,  Jahanshir J. Javanifard

Inventor： Rajesh Sundaram ,  Jahanshir J. Javanifard

IPC: H02J312

CPC classification number: H02M3/157 ,  G11C16/30 ,  H02M2001/0032 ,  Y02B70/16

Abstract: A system includes a processor and a flash memory block that may receive an operating voltage potential sufficient for reading a memory cell. A Power-Supply-In-Package (PSIP) block may adjust a supply voltage in accordance with received data values and be used to power the flash memory block.

Abstract translation: 系统包括处理器和闪存块，其可以接收足以读取存储器单元的工作电压。 电源包装（PSIP）块可以根据接收的数据值调整电源电压，并用于为闪存块供电。

公开(公告)号：US06459645B2

公开(公告)日：2002-10-01

申请号：US09410493

申请日：1999-09-30

Applicant: Sandeep K. Guliani ,  Rajesh Sundaram ,  Mase J. Taub

Inventor： Sandeep K. Guliani ,  Rajesh Sundaram ,  Mase J. Taub

IPC: G11C800

CPC classification number: G11C16/30 ,  G11C5/14 ,  G11C8/12

Abstract: A method and apparatus to segment a programmable non-volatile memory array into at least two banks. The banks include memory cells. Each bank in the at least two banks is provided with a local programming voltage. Each local programming voltage is independent of the other local programming voltages supplied to the other banks.

Abstract translation: 一种将可编程非易失性存储器阵列分割成至少两个存储体的方法和装置。 银行包括存储单元。 至少两个组中的每个存储体都具有本地编程电压。 每个本地编程电压与提供给其他存储体的其他本地编程电压无关。

公开(公告)号：US6163225A

公开(公告)日：2000-12-19

申请号：US305976

申请日：1999-05-05

Applicant: Rajesh Sundaram ,  Sandeep K. Guliani

Inventor： Rajesh Sundaram ,  Sandeep K. Guliani

IPC: H03B5/04 ,  H03B5/24

CPC classification number: H03B5/04 ,  H03B5/24

Abstract: A method for generating a positive temperature correlated clock frequency is described. The method comprises conducting current through a resistor to charge a capacitor. When the capacitor is charged to a trip point of the inverter at the input of the inverter chain, a transition in an output signal of an inverter chain is triggered. The capacitor is discharged through a grounding device when the output signal activates said grounding device.

Abstract translation: 描述了用于产生正温度相关时钟频率的方法。 该方法包括通过电阻器传导电流以对电容器充电。 当电抗器在变频器链的输入端被充电到变频器的跳变点时，触发逆变器链输出信号的转变。 当输出信号激活所述接地装置时，电容器通过接地装置放电。