Abstract: A system, method, apparatus, means, and computer program code for facilitating security in a network, particularly a distributed network. According to embodiments of the present invention an apparatus or system may include a manager in communication with one or more mappers and one or more adapters for facilitating security requests that may be associated with an application or its environment. An adapter may be associated with an application to identify security requests associated with the application. Similarly, a mapper may be associated with a security service to facilitate communication to and from the security service regarding security requests.

Abstract: The present invention is a method and apparatus for predicting the future failure of a disk drive. Structurally, the present invention is implemented as a series of diagnostic and statistical routines contained in a ROM on the logic board of a disk drive. The routines detect errors that occur during normal operation of the disk drive and issue a warning if the number of errors or the rate at which errors occur has exceeded predetermined levels. In addition to monitoring errors that occur during normal operation, the diagnostic routines may be activated to test for the presence of recoverable errors. Recoverable errors are detected by running a series of diagnostic tests after enabling error detection and disabling error correcting codes as well as device retries. Once again, a warning is issued if the number of errors or the rate at which errors occur has exceeded predetermined levels.

Abstract: The present invention is an inline tester for analyzing the integrity of a disk drive. Structurally, the inline tester includes a set of statistical and diagnostic routines included in the ROM of a disk drive and a diagnostic logic section included in the drive's logic board. In initial use, the inline tester reconfigures the drive, making the drive less tolerant of flaws within the drive's media. The drive is also reconfigured to enable error detection and disable error correcting codes as well as device retries. Each sector of the media is then tested with multiple test patterns and failing sectors are added to a list of suspected sectors. At the conclusion of testing, the drive is restored to its normal operating configuration with error correcting codes and device retries enabled. Later, each sector in the list of suspected sectors is re-tested. Sectors that fail are added to the drive's list of bad sectors and are replaced by an alternate sector allocated from a reserved portion of the drive.

Abstract: The present invention provides a system of hardware and software that combine to form a redundant array of disk drives. This array provides a double means of redundancy that can reconstruct data from two simultaneously failed disks. The double redundancy means is implemented by two separate algorithms, DRR1 and DRR2. DRR1 takes the exclusive-or of all the commercial data and stores the result as redundancy data. DRR2 is similar to the algorithm described in Patel's article. As an additional feature, the implementation of DRR1 and DRR2 in the present invention is flexible enough to support either on-the-fly or read-modify-write level operation. Although both algorithms are in the prior art, the present invention improves on the run-time and space requirements of the algorithm. This improvement arises because of a novel relationship, discussed below, that exist between the individual T.sup.

Abstract: A housing and cooling structure for a personal processor module (PPM) is provided which includes a case which is sealed and will fit within both a desktop sized docking station and a smaller notebook sized docking station. Within the case, the components which make up the PPM are located in such a way as to minimize the size of the printed circuit boards. In addition, a cooling mechanism is provided which cools all of the components within the case. Also, the PPM has structure for converting 3.3 volt signals into 5 volt signals and for permitting easy upgrades.

Abstract: A highly portable personal processor module (PPM) for use in a variety of docking stations, each of which can be connected to the personal processor via a standard connector, the personal processor and docking station when so connected defining a complete computer system, the personal processor containing a microprocessor, magnetic storage and memory, and the docking station providing at least a power supply, a cooling system for the PPM, a keyboard and a display. The personal processor is loaded with a user's personalized operating system and software so that the user can carry their preferred computing environment with them. The personal processor module also includes control software that reads and recognizes a type code provided by each docking station and configures the PPM accordingly. For the situation when the PPM cannot identify the docking station to which it is connected, the PPM provides a default configuration routine.