JPH01107371A - Dynamic processing system for fault track - Google Patents

Abstract

PURPOSE:To prevent the occurrence of input/output errors by collating the input output errors of large capacity storage devices to an error log file, automatically detecting the places of the errors, automatically setting them to fault tracks and executing the allocation of alternate tracks instead. CONSTITUTION:An alternate track allocation means 7 sets the track which an error log information analysis means 5 has decided to be the fault track to be the fault track, and allocates the alternate track instead. A fault track processing means 1 calls a data rewriting means 8, which rewrites data which a data read means 6 has read into the alternate track that the alternate track allocation means 7 has allocated. When the fault track processing means 1 rewrites data which the data read means 6 has read into the alternate track that the alternate track allocation means 7 has allocated by the data rewriting means 8, a print image output device 10 outputs a processing result on a list. Thus, the occurrence of the input/output errors can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention includes a mass storage device that, when a defective track exists, does not use the defective track and instead allocates and uses an alternative track, The present invention relates to a system that stores a plurality of files in a storage area of a large-capacity storage device, performs input/output processing on the stored files, and stores error information generated in the input/output processing in an error log file.

(Prior art) Conventionally, this type of bad track processing outputs the contents of an error log file on a list, and maintenance personnel refer to the output list and take action, or an error occurs that cannot be automatically recovered. I dealt with it afterwards.

(Problems to be Solved by the Invention) The conventional defective track processing method described above has the following drawbacks.

■ After outputting the contents of the error log file to a list,
The output list had to be referenced manually, but now that the system has grown in size and the number of users has increased, it has become extremely difficult to rely on it manually.

■ After an error that cannot be automatically recovered occurred, bad track processing was performed, so it took a lot of man-hours to recover the file.

■ If an error that cannot be automatically recovered suddenly occurs, the system may suddenly stop and the user's business may come to a halt.

(Means for solving the problem) The defective track dynamic processing method of the present invention includes an error log file reading means for reading the contents of an error log file, and an error log file reading means for reading the contents of the error log file read by the error log file reading means. an error log information analysis means for analyzing and determining whether a track on the mass storage device should be made a bad track; and data for reading data on a track determined to be a bad track by the error log information analysis means. a reading means; an alternative track allocating means for making the track read by the data reading means a defective track and allocating an alternative track instead; and an alternative track allocating the data read by the data reading means by the alternative track allocating means. and data write-back means for writing back the data.

(Function) Therefore, input/output errors can be prevented from occurring.

〔Example〕

Next, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the defective track dynamic processing method of the present invention. The defective track dynamic processing method of this embodiment includes an error log file reading means 2 that reads the contents of the error log file 4 of the mass storage device 3, and the contents of the error log file 4 read by the error log file reading means 2. The mass storage device 91
Error log information analysis means 5 that determines whether the tracks above ~9n need to be designated as defective tracks; and data reading means 6 that reads data on the tracks that have been determined to be defective tracks by the error log information analysis means 5. an alternative track allocating means 7 which makes the track read by the data reading means 6 a defective track and allocates an alternative track instead; It is composed of a data write-back means 8 for writing back to an alternative track, a print image output device 10 that outputs the processing result on a list, and a defective track processing means 1 that starts each of the above-mentioned means 2 to 8 and the print image output device IO. ing.

Next, the operation of this embodiment will be explained with reference to the drawings.

When the user decides that he wants to inspect the mass storage devices 9x to 9n, he activates the defective track processing means 1. The defective track processing means 1 operates the error log file reading means 2. Error log file reading means 2
reads the error occurrence+Ili information of the mass storage devices 91 to 9n stored in the error log file 4 existing in the mass storage device 3. Next, the defective track processing means 1 calls the error log information analysis means 5 to analyze the read error occurrence information. The error log information analysis means 5 is a mass storage device 9. When a human output error occurs on ~9n and a track that has been subjected to input/output processing is detected by automatic recovery processing, it is determined that it should be treated as a defective track. Next, the defective track processing means 1 calls the data reading means 6, and reads the data on the corresponding track existing in the mass storage devices 91 to 9n, which is determined to be a defective track by the error log information analysis means 5. Load. When the data reading means 6 finishes reading the data, the defective track processing means 1 calls the alternative track allocation means 7, and the alternative track allocation means 7 selects the track determined to be a defective track by the error log information analysis means 5. Make the track defective and assign an alternate track in its place. Alternative track allocation means 7
After allocating the defective track to an alternative track, the defective track processing means 1 calls the data writing back means 8 in order to write back the data read by the data reading means 6. The data writing back means 8 writes back the data read by the data reading means 6 to the alternative track allocated by the alternative track allocation means 7. Next, the defective track processing means 1 uses the data writing back means 8 to write back the data read by the data reading means 6 to the alternative track allocated by the alternative track allocation means 7, and then the print image output device 1O
outputs the processing results on a list. When the series of processing is completed, the defective track processing means 1 is activated again, and the processing is repeated until all the contents of the error log file 4 existing in the mass storage device 3 are analyzed.

(Effects of 9i Light) As explained above, the present invention automatically detects input/output errors in a mass storage device by referring to the error log file, automatically marks the error track as a defective track, and replaces the input/output error with a defective track. By assigning alternative tracks,
This method has the effect of preventing input/output errors from occurring, thereby reducing the number of man-hours required for file recovery, and increasing system reliability since it prevents errors that cannot be automatically recovered from occurring.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the defective track dynamic processing method of the present invention. 1...-Defective track processing means, 2-----Error log file reading means, 3.
... Mass storage device, 4 ... Error log file, 5 ... Error log information analysis means, 6 ...
・Data reading means? -------Defective track allocation means, 8...
...Data write-back means, 91-9 n ...-Mass storage device, 10...
...Print image output device.

Claims (1)

[Claims] A large-capacity storage device that does not use the defective track when a defective track exists and instead allocates and uses an alternative track is provided, and a plurality of files are stored in the storage area of the large-capacity storage device. In a system that stores a file, performs input/output processing on the stored file, and stores error information generated in the input/output processing in an error log file, an error log file reading means for reading the contents of the error log file. and an error log information analysis means for analyzing the contents of the error log file read by the error log file reading means and determining whether a track on the mass storage device should be designated as a defective track; data reading means for reading data on a track determined to be a defective track by the analysis means; alternative track allocation means for making the track read by the data reading means a defective track and allocating an alternative track in its place; a data write-back means for writing back data read by the means to an alternative track allocated by the alternative track allocation means.