摘要:
A management module for a storage apparatus includes a device attribute managing part to manage attribute information and security function of at least two storage parts of different kinds and/or with different performances that are virtually used as a single virtual storage apparatus, and to provide at least a portion of the attribute information with respect to a host unit. The attribute information includes storage region information indicating a storage region occupied by each storage part in the virtual storage apparatus, and performance information of each storage part, in correspondence with each other.
摘要:
A vendor ID is written to a system area of a write-once optical disk. When the write-once optical disk is loaded onto a write-once disk drive, a control CPU reads the vendor ID. The vendor ID is written into the header of software received through an interface unit. When the software is input to an SD circuit, the control CPU reads the vendor ID. The control CPU compares the vendor ID in the system area of the write-once optical disk with the vendor ID of the header of the software and checks whether or not the two IDs are identical. If the two IDs correspond to each other, the control CPU writes the software to the write-once optical disk.
摘要:
In a method for preventing unauthorized use of a recording medium having a user accessible area and a user inaccessible area, first information is read from the user inaccessible area of the recording medium. The first information is compared with second information concerning a true recording medium (lawfully produced copy). It is then concluded that the recording medium is the true recording medium when the first information corresponds to the second information.
摘要:
An optical disk is divided into a plurality of sections at least one of which (a first section) is made a section (formatted in MS-DOS, for example) having a format different from the logical format of a CD-ROM. Publication data is optically recorded in at least one section (a second section) of the sections other than the first section in accordance with the CD-ROM logical format. A CD-ROM utilization tool that utilizes publication data in the CD-ROM logical format and a CD-ROM emulator for converting a request for access to the CD-ROM logical section issued by the CD-ROM utilization tool to a request for access to the optical disk are recorded in the first section.
摘要:
A method of preventing a fraudulent use of an optical disk having a read-write region and a read-only region, comprising the steps of: writing data for designating the boundary between the read-write region and the read-only region into a predetermined block of the optical disk; reading the data out of the predetermined block prior to the execution of the software recorded on an optical disk as an object of fraudulent use check; reading data out of a block which is assumed to be in the read-only region by reference to the data read out of the predetermined block, and writing the data read out of the block in the assumed read-only region into the same block; reading data out of a block which is assumed to be in the read-write region by reference to the data read out of the predetermined block, and writing the data read out of the block in the assumed read-write region into the same block; and judging that the optical disk as an object of fraudulent use check is not a fraudulent copy when the data writing operation is impossible in the block in the assumed read-only region but possible in the block in the assumed read-write region.
摘要:
An optical disk provided with read-exclusive regions where previously recorded information can be read, and with write-enable regions where information can be written. Information not desired to be rewritten can be recorded on the read-exclusive regions. The write-enable regions are open to users to freely add information thereto and to re-write information recorded. This optical disk can thus be used in various fields.
摘要:
According to one embodiment, a storage device includes, when power is supplied to a storage unit, counting of an elapsed time is started. If a command is input from a host device, and the elapsed time from input of a previous command to input of a current command is calculated based on time information clocked by the host device and on a counter value counted until the corresponding command is input. Matching of the time information is determined based on a temporal relation between the adding result of adding the calculated elapsed time to the time information included in the previous command and the time information included in the current command. When the mismatching is determined, data in the storage unit is invalidated.
摘要:
According to one embodiment, a storage device that has a nonvolatile semiconductor memory includes an authentication information storage unit that previously stores first apparatus authentication information to authenticate an authorized host device and first user authentication information to authenticate an authorized user. The storage device executes apparatus authentication on the basis of second apparatus authentication information received from a newly connected host device and the first apparatus authentication information in the authentication information storage unit and executes an invalidation process of user data stored in the nonvolatile semiconductor memory, when the apparatus authentication is failed.
摘要:
An anticorrosive that is capable of delivering high anticorrosive capability. The anticorrosive mainly contains an epoxy resin, and has a viscosity within a range of 1000 to 30000 mPa·s at 25 degrees C., which is measured in accordance with the JIS Z8803. The anticorrosive can be favorably applied to an electrically connected portion between a wire conductor of a coated electric wire with a terminal and a terminal member. The coated electric wire with the terminal has the configuration that the electrically connected portion between the wire conductor and the terminal member is coated with a cured material of the anticorrosive. The epoxy resin is preferably a one-component epoxy resin.
摘要:
A storage system includes first and second expanders for connecting storage units, each of the first and second expanders being connected cascade each other, a first controller connected one of the first and one of the second expanders and a host, a second controller connected the one of the second expanders, the one of the first expanders and the host, the second controller detecting a failure of at least one of the first controller, the first expanders and the second expanders, the second controller selectively controlling a first boot sequence which boots the first controller after the first expanders have been booted and a second boot sequence which boots the first controller before the first expanders have been booted, determining one of the first boot sequence and the second boot sequence on the basis of a place where a failure has occurred in a recovery process.