Hitachi, Ltd.

Fujitsu Corporation

Masahiro Nakayama

Hisaharu Takeuchi

Akira Kurano

Hisashi Takamatsu

Mamoru Tohchi

Susumu Koga

Yoshiro Shiroyanagi

Tomoyuki Kobayashi

Toshiyuki Fujishima

Satoshi Numakura

Kimiko Shigihara

A non-transitory computer-readable storage medium storing a program that causes a computer to execute a process, the process includes determining whether an error log is included in an operation log over a terminal; when the error log is included in the operation log, specifying a start timing and a stop timing of a script including the error log stored in a memory based on the operation log; and extracting moving image data output to the terminal during execution of the script based on time information related to the specified start timing and stop timing of the script.

Extracting moving image data from an error log included in an operational log of a terminal

A magnetic disc storage system, in which operation for erasing information otherwise left to remain in succession to data records on a rotatable storage medium during a remaining period of one rotation of the medium is omitted. In response to a command commanding access to the stored data, a table containing the lengths of the stored data is referred to. When it is detected that a record having a storage location commanded to be accessed exceeds the associated stored length of the recorded data, a command error is messaged to a controller of the rotatable storage medium in place of executing the access.

Disk control method of format write operation using data distance on a

A method of emulating an original record format for a new rotating storage device, including the steps of;

Rotating storage track format emulation

A method of controlling a magnetic disc apparatus. When a format writing is performed on a designated track portion, information of the location of the latest format writing record is read out from a control table storing information of the locations of the records of the format writings performed already to be compared with the information of location of the designated track portion where the format writing is to be currently performed. In dependence on the result of the comparison, it is decided whether erasing operation for the remaining track portions following the designated one is necessary or not. When decision is such that the erasure is necessary, erasing operation is performed for the remaining track portion in succession to the format writing on the designated track portion. Otherwise, the erasing operation is not performed for the remaining track portion, and information of the location of the record resulting from the format writing is subsequently stored in the control table.

Method of controlling erasing following format writing in a magnetic

A method for controlling to keep off defects in a magnetic disk apparatus while has a plurality of magnetic disks and defect position information is recorded in each of tracks on each magnetic disk to keep off a defect in writing records in each track. Positional information about defects on all the tracks belonging to a cylinder of the magnetic disk apparatus is recorded in each of the tracks, and records are written in each of the tracks while keeping off the defects on the basis of the recorded positional information about the defects.

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Odawara, Japan

Masahiro Nakayama