摘要:
A working machine (1) includes a frame (3), a body section (2) mounted to the frame (3) for pivotal movement about a vertical axis, a boom unit (7) having a plurality of booms, including a basal boom (7a), telescopically extendable from and retractable to one another. A support arm (14) is mounted to the body section (2) for pivotal movement about a horizontal axis. An end of the support arm (14) is coupled with the basal boom (7a). The basal boom (7a) is pivotable relative to the support arm (14) about a horizontal axis. A first hydraulically operable device extends from the body section (2) to the basal boom (7a) for pivoting the basal boom (7a) relative to the support arm (14) about the horizontal axis.
摘要:
Provided is an information system for preserving data of a storage device in a computer that repeats the connection to and disconnection from a communication network. The computer acquires data to be written into the storage device and manages the update status of the storage device, transfers the data written into the storage device to the storage controller independent from the writing of data into the storage device when the computer is in a communicable state with the storage controller, and discontinues the transfer of data written into the storage device to the storage controller and manages the transfer status when the computer is not in a communicable state with the storage controller.
摘要:
A storage system has a first type resource and a second type resource, which are different types of resources having a relationship in which, when the load on one type of resource becomes higher, the load on the other type of resource becomes lower, and this storage system comprises a process controller. The process controller executes processing such that the load of the other type of resource becomes higher when the load on the one type of resource, of the first type resource and the second type resource, is high and the load on the other type of resource is not so high.
摘要:
In order to manage the various types of attribute information within the storage system, the storage system includes the following databases within a file-access controlling memory: a database for managing index information for managing contents of the files, and an index retrieval program, a database for managing the attribute information on the files, and a database for managing storage positions of blocks configuring a file. When the storage system receives an access request to a file, the utilization of these databases allows the storage system to make the access to the access-target file.
摘要:
A disk array controller 11 decides whether a command received from a host 20-22 is a write command or a read command. If it is a write command, the disk array controller 11 generates a data block, parity block and redundancy code block from the received data, and stores the data dispersed among the plurality of disk devices D00 -D0N. If it is a read command, the disk array controller 11 uses the parity block and redundancy code block to decide whether there is an error in the read data block, and in the event there is an error in the read data block, it is corrected using the parity block and redundancy code block.
摘要:
An entire chip is divided into N blocks (N=n.times.m) in accordance with a desired rectangular group of bits (n.times.m bits). The same row decoder is provided for every m blocks, and a row address A.sub.R or a row address A.sub.R+1 adjacent thereto is given to the row decoders. Similarly, the same column decoder is provided for every m blocks, and a column address A.sub.C or a column address A.sub.C +1 adjacent thereto is given to the column decoders. N bits of memory cells are accessed from the blocks, and the accessed memory cells are rearranged, thereby obtaining a desired rectangular group of bits.
摘要:
A semiconductor memory device includes a random-access memory which has at least one redundancy column for replacing a defective column; a serial output circuit receives data read out in parallel from the random-access memory and serially outputs the received data redundancy circuit replaces data of the defective column with data from the redundancy column.
摘要:
A storage control apparatus comprises a storage unit, an association unit, and an execution unit. The storage unit stores association information showing multiple physical chunks which are configured in a physical address space of a nonvolatile semiconductor memory, multiple logical storage areas which are configured in a logical address space of the nonvolatile semiconductor memory, multiple logical chunks which are respectively associated with the multiple physical chunks, and an association between a logical storage area and a logical chunk. The association unit changes the association by changing the association information in accordance with a state of the nonvolatile semiconductor memory, and identifies based on the association information a physical storage area corresponding to a logical storage area specified in an input/output request from a computer. The execution unit executes the input/output request with respect to the identified physical storage area.
摘要:
A memory controller adds the redundant information that is used to correct an error for each of data of a predetermined length and stores the data into the nonvolatile memory in the case in which data is written to the nonvolatile memory, the memory controller reads data and the redundant information that has been added to the data from the nonvolatile memory in the case in which data is read from the nonvolatile memory, and the memory controller corrects an error based on the redundant information in the case in which the data includes an error. The memory controller stores data that is in a basic unit that is a unit of an error correction configured by the data of a predetermined length and the redundant information that is added to the data of a predetermined length into a plurality of predetermined pages in a dispersed manner.
摘要:
A plurality of CPU cores each have control rights for logical storage areas of one or more types among logical storage areas of a plurality of types. As a source for an area to be assigned to the logical storage areas, a physical storage area which is common to the logical storage areas of the plurality of types is managed. In the case of a data access to a logical storage area corresponding to the control rights of the CPU core, the respective CPU core assigns an area required to store the data from the common physical storage area.