公开(公告)号：EP0962861A3

公开(公告)日：2001-06-06

申请号：EP99304353.8

申请日：1999-06-03

Applicant: Compaq Computer Corporation

Inventor： Ehlinger, Early D. ,  Fletcher, Mark F.

IPC: G06F9/46 ,  H04L12/24

CPC classification number: H04L41/0893 ,  H04L67/42

Abstract: The present inventions provide a cluster administration system that is capable of handling a cluster having one or more computing devices. The number of computing devices that may be included in a cluster is limited only by practical considerations rather than software or hardware limitations. In one embodiment, a cluster administration system includes a cluster of computing devices, one of the computing devices being an owner. The cluster further includes a resource. Direct access to the resource by the computing devices is controlled by the owner of the cluster. The cluster administration system also includes an arbiter. The arbiter and the cluster are in communication with each other and a network, the cluster providing the network with access to the storage device. The arbiter controls the admission of new computing devices to the cluster when the owner of the cluster is incapable of admitting the new computing device. Having the arbiter outside the cluster provides greater reliability. The arbiter is not affected by failures within the cluster. One or more of the computing devices of the cluster may fail, but the administration of the cluster is not affected. The functions of the arbiter may also be distributed among several independent computing devices which can hand off the primary duties of the arbiter should one or more of the independent computing devices fail to satisfactorily perform the duties of arbitration.

公开(公告)号：EP1093055A2

公开(公告)日：2001-04-18

申请号：EP00309068.5

申请日：2000-10-16

Applicant: Compaq Computer Corporation

Inventor： Mosher, Malcolm ,  Whitworth. P., Simon

IPC: G06F11/14

CPC classification number: G06F11/2097 ,  G06F11/1471 ,  G06F11/1662 ,  G06F11/2066 ,  G06F11/2069 ,  G06F11/2074 ,  G06F11/2082 ,  G06F11/2089 ,  G06F11/2094 ,  G06F2201/855 ,  Y10S707/99953 ,  Y10S707/99955

Abstract: A primary computer system has a database, application programs that modify the local database, and a transaction manager that stores audit records in a local image trail reflecting those application program modifications to the local database. In a remote backup system, a Receiver process receives audit records from the primary system. The audit records include audit update and audit backout records indicating database updates and database backouts generated by transactions executing on the primary system. The Receiver stores the audit update and audit backout records in one or more image trails. For each image trail there is an Updater process that applies to a backup database volume the database updates and backouts indicated by the audit update and audit backout records in the image trail. The remote backup system periodically executes a file purge procedure, which identifies the oldest transaction table from among the transaction tables in the last image trail file accessed for each of the image trails. Then, for each image trail, the file purge procedure accesses the image trial files in a predefined chronological order and for each accessed image trail file it compares a first set of newest transaction identifiers in the file's transaction table with a second set of oldest transaction identifiers in the identified oldest transaction table. The procedure purges the accessed image trail file only when all of the transaction identifiers in the first set are older than corresponding transaction identifiers in the second set.

Abstract translation: 的主计算机系统有一个数据库，应用程序做了修改本地数据库，事务管理器在本地易扑反映这些应用程序修改本地数据库中没有存储的审计记录。 在远程备份系统中，接收机处理从主系统接收审核记录。审计记录包括审计更新和审计退出记录指示由主系统上执行的事务生成的数据库的更新和数据库重新出局，接收机存储该审计更新和审计 退出记录在一个或多个图像路径。 对于每一个图像线索有一个更新processthat适用于备份数据库卷数据库更新，并在图像跟踪审计更新和审计退出记录显示回奏。 远程备份系统周期性地执行一文件清洗过程，该过程从访问的针对每个图像的小径在负载易扑文件事务表中识别最旧的事务表。 然后，对于每个图像线索，文件吹扫程序访问在一个预定义的时间顺序和每个访问的易扑文件它比较第一组最新事务标识符的在文件的交易表与第二组最古老的事务标识符的图像审判文件 确定了最古老的交易表。 该程序清除被访问的易扑FILESONLY当所有第一组的事务标识符比在第二组对应的事务标识符老。

公开(公告)号：EP0853406A3

公开(公告)日：2001-02-21

申请号：EP98100064.9

申请日：1998-01-05

Applicant: Compaq Computer Corporation

Inventor： Ben-Michael, Simoni ,  Perlman, Shuki ,  Ben-Nun, Michael ,  Ben-Shachar, Yifat

IPC: H04L12/46

CPC classification number: H04L49/351 ,  H04L49/201 ,  H04L49/254

Abstract: Management of a repeater is accomplished by the repeater having segment busses connected to ports of the repeater. A switch engine forwards a packet that is broadcast onto a segment bus by a port which received the packet from an ethernet network. An arbitration unit determines which port is permitted to broadcast a packet onto a segment bus. A management unit receives an order to transfer a selected port from segment bus to a second segment bus, and the arbitration unit is activated in order to prevent any port from broadcasting a packet onto the first and second segment busses until the transfer of the selected port from the first segment bus to the second segment bus is accomplished.

公开(公告)号：EP1072975A2

公开(公告)日：2001-01-31

申请号：EP00306111.6

申请日：2000-07-18

Applicant: Compaq Computer Corporation

Inventor： Chaiken, Craig

IPC: G06F9/445

CPC classification number: G06F21/572 ,  G06F8/60 ,  G06Q20/3821

Abstract: A system and method for making sure that before the ROM BIOS of a personal computer is reprogrammed, the BIOS image is compatible with the computer whose BIOS are being reprogrammed. This is done by requiring the utility that performs the reprogramming of the ROM BIOS to have a secure portion of code that is stored in a portion of the computer's memory that is inaccessible to a user. The secure portion of code is used to make sure that the BIOS image to be programmed into the computer is compatible with the computer.

Abstract translation: 一种确保在个人计算机的ROM BIOS被重新编程之前的系统和方法，BIOS图像与其BIOS被重新编程的计算机兼容。 这通过要求执行ROM BIOS的重新编程的实用程序来完成，以具有存储在计算机的存储器的一部分中的用户不可访问的代码的安全部分。 代码的安全部分用于确保要编程到计算机中的BIOS映像与计算机兼容。

公开(公告)号：EP0937581A3

公开(公告)日：2001-01-10

申请号：EP99301136.0

申请日：1999-02-16

Applicant: Compaq Computer Corporation

Inventor： McGraw, Montgomery C.

IPC: B41J11/46

CPC classification number: B41J11/46 ,  B41J11/009

Abstract: A technique for the automatic detection of certain characteristics of the print medium being used in a printer is disclosed. These characteristics may include, without limitation, the manufacturer, the finish, the quality, orientation, and the dimensions of the print medium. Each sheet of specialty print medium is marked at the point of manufacture or packaging with certain preassigned numeric or symbolic codes that uniquely identify the characteristics of the print medium. Sensors are added to each printer to automatically detect and decode the markings on the speciality print media. This information is used to automatically optimize the printer for the best print quality possible.

公开(公告)号：EP0959399A3

公开(公告)日：2000-12-20

申请号：EP99303946.0

申请日：1999-05-20

Applicant: Compaq Computer Corporation

Inventor： Della Fiora, Troy A. ,  Kung, Ian ,  Riccio, Daniel J.

IPC: G06F1/18 ,  H05K5/02

CPC classification number: G06F1/181

Abstract: A tower computer housing has a molded plastic exterior wall portion with an access opening therein, a molded plastic access door, and a specially designed hinge structure that supports the access door on the housing for pivotal movement relative thereto between closed and open positions in which the door respectively covers and uncovers the access opening. The hinge structure includes spaced pairs of hinge pins and cam arms molded integrally on opposite ends of the access door, and spaced apart first and second resilient mounting and spring tab sets molded integrally with the housing exterior wall portion. Each of these sets includes a resilient mounting tab having a mounting hole therein and positioned between an opposed pair of resilient spring tabs. The door pins are removably snap-fitted into the mounting tab holes, and each of the door cam arms is positioned between and slidingly engages a pair of the spring tabs. When the door is manually pivoted through an initial arc toward a selected one of its closed and open positions, the spring tabs are deflected and function to automatically drive the door through a final arc to its selected position.

公开(公告)号：EP0917057A3

公开(公告)日：2000-08-09

申请号：EP98309011.9

申请日：1998-11-04

Applicant: Compaq Computer Corporation

Inventor： Zalewski, Stephen H. ,  Mason, Andrew H. ,  Jordan, Gregory H. ,  Noel, Karen L. ,  Kaufman, James R. ,  Harter, Paul K. ,  Kleinsorge, Frederick G. ,  Shirron, Stephen F.

IPC: G06F9/46

CPC classification number: G06F9/5077

Abstract: Multiple instances of operating systems execute cooperatively in a single multiprocessor computer wherein all processors and resources are electrically connected together. The single physical machine with multiple physical processors and resources is subdivided by software into multiple partitions, each with the ability to run a distinct copy, or instance, of an operating system. At different times, different operating system instances may be loaded on a given partition. Resources, such as CPUs and memory, can be dynamically assigned to different partitions and used by instances of operating systems running within the machine by modifying the configuration. The partitions themselves can also be changed without rebooting the system by modifying the configuration tree.

公开(公告)号：EP0930573A3

公开(公告)日：2000-07-19

申请号：EP99300270.8

申请日：1999-01-15

Applicant: Compaq Computer Corporation

Inventor： Pascarella, Randall J. ,  Nguyen, Vincent

IPC: G06F13/40

CPC classification number: G06F13/409

Abstract: A computer system with a SCSI backplane board has duplex-ready logic for switching the computer system between a SCSI simplex mode and a SCSI duplex mode. The duplex-ready logic includes a set of bus quick switches, a duplex-ready logic controller, and a set or sets of active terminators. The SCSI simplex mode and SCSI duplex mode are configured by the duplex-ready logic controller based on the number of SCSI cables present. If only a primary SCSI cable is present, the duplex-ready logic controller enables a SCSI simplex mode. To enable a SCSI simplex mode, the bus switches are enabled and the terminators are selectively enabled and/or disabled. If a primary SCSI cable and a secondary SCSI cable are present, the duplex-ready logic controller enables a SCSI duplex mode. To enable a SCSI duplex mode, the bus switches are disabled and the terminators are selectively disabled and/or enabled. The duplex-ready logic controller optionally may change to SCSI identification values for a set of SCSI devices for a SCSI duplex mode and restore the SCSI identification values for a SCSI simplex mode. In manually configuring the state of the SCSI backplane for the secondary SCSI duplex mode, the chassis is minimally disassembled to allow for installation of a SCSI cable from a secondary SCSI controller to the SCSI duplex-ready backplane board. The SCSI duplex-ready backplane board both eliminates the need for a board changeout and a duplex-option kit and reduces the disassembly and reassembly required to configure the state of the SCSI backplane of a computer system for a SCSI simplex mode or a SCSI duplex mode.

公开(公告)号：EP0924620A3

公开(公告)日：2000-06-28

申请号：EP98310413.4

申请日：1998-12-18

Applicant: Compaq Computer Corporation

Inventor： Maguire, David J. ,  Melo, Maria L. ,  Foster, Joseph E.

IPC: G06F13/16 ,  G06F13/40

CPC classification number: G06F13/4059

Abstract: A computer system includes a microprocessor coupled to a main memory through a bridge logic unit. The bridge logic unit receives memory read requests from the microprocessor and provides the requests to the main memory. The bridge logic unit includes a memory fetch control unit configured to fetch a single line of data from the main memory in response to an initial read request from the microprocessor. If a read request to a sequential line of data is received from the microprocessor, the memory fetch control unit fetches not only the requested line of data but also the next sequential line of data. Thus, following the initial read request in which a single line of data is fetched, when the microprocessor issues a request for data from a sequential line, that line is fetched and the subsequent line is speculatively prefetched. If the microprocessor continues with a request to yet an additional sequential line, the memory fetch unit continues its speculative generation of a request for the next sequential line. If the microprocessor issues a memory read request to a non-sequential line of data, the memory fetch control unit fetches only that line of data.

公开(公告)号：EP0905604A3

公开(公告)日：2000-06-21

申请号：EP98307573.0

申请日：1998-09-17

Applicant: Compaq Computer Corporation

Inventor： Bolognia, David F. ,  Gebara, Ghassan R.

IPC: G06F1/18

CPC classification number: G06F1/183

Abstract: A computer system has a motherboard, a power supply and a first circuit board. The motherboard has power consuming circuitry. A first circuit board is configured to form a rigid connection with the motherboard and route power from the power supply to the motherboard through the rigid connection.