JPS6385848A - Memory diagnosing system - Google Patents

Abstract

PURPOSE:To diagnose all storage addresses of a data storage part by constituting the titled system with a data storage means, a memory error storage means, a diagnosis means, and a display means for displaying package numbers stored in the memory error storage means. CONSTITUTION:At the time of diagnosis, a memory diagnosis part 12 supplies address information and previously fixed diagnosis data to the data storage part 13 through a bus (b) and the diagnosis data are written in a storage address specified by the address information. Then, the diagnosis part 12 reads out the data from the same storage address through the bus (b) and the read data are compared with the diagnosis data supplied and written in the data storage part 13. When both the data are different, the diagnosis part 12 stores the package number concerned in the memory error storage part 14 through a signal line (c). After completing the diagnosis of all the storage addresses in the data storage part 13, the diagnosis part 12 the package number stored in the storage part 14 sent and displayed to/on the display part 11 through a signal line (a).

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a memory diagnostic method for data storage devices.

[Conventional technology]

Conventionally, when diagnosing a data storage device, each storage location of the storage device is sequentially examined, and when an error is detected, the diagnosis is aborted. No diagnosis has been made for this.

[Problem that the invention seeks to solve]

In step 9 above, in the conventional method, diagnosis is discontinued when the first error is detected, so even if a fault exists in a storage location after the address where the error was detected, it will not be detected. [Means for solving the problem] The method of the present invention includes a plurality of packages, each of which is assigned a unique number, and a plurality of packages, each of which is assigned a unique address. A data storage means having a plurality of storage locations, a memory error storage means, and a number of a package to which a storage location in which an error has been detected by sequentially diagnosing the plurality of storage locations of the data storage means is stored in the memory error storage means. The apparatus includes a diagnostic means for storing the number of the package, and a display means for displaying the number of the package stored in the memory error storage means.

〔Example〕

Next, the present invention will be explained in detail with reference to the drawings.

With full reference to FIG. 1, one embodiment of the present invention shows that storage location 1! where an error has been detected due to a failure! - A memory error display section 11 that displays the package number of the memory package, a memory diagnostic section 12, and a data storage section that includes a plurality of packages each having a plurality of storage locations each with its own address fully assigned. 13, and a memory error storage section 14 that stores the number of the package in which an error has been detected. Note that in FIG. 1, other mIR elements included in a normal information processing system are omitted.

Next, the operation of this embodiment will be explained.

At the time of diagnosis, the memory diagnostic section 12 supplies address information and predetermined diagnostic data to the data storage section 13 via the bus bi, and writes the diagnostic data to the storage location designated by this address information. . Next, the diagnostic department
Data is read from this same storage location via the bus by, and this read data is compared with the diagnostic data supplied to the data storage unit 13. If the two match, the same operation is repeated for the next address in the data storage section 13. If the two do not match, the diagnostic unit 12 adds 19 to the address information at this time.
It is checked which package contains the designated storage location, and the number of the corresponding package is stored in the memory error storage section 14 via the signal line ct-. After this, the above-described diagnosis is continued for the next address and subsequent addresses.

When the diagnosis for all storage locations in the data storage f9jr 13 is completed, the diagnostic unit 12 automatically performs one! According to the operator's instructions, the friend sends the number of the friend package stored in the storage section 14 to the display section 11 via the signal line a, and displays it. The operator can take out the package corresponding to the next number displayed on the display section 11 from the data storage section 13 and repair it or replace it with a new package.

〔Effect of the invention〕

As described above, the present invention has the effect of being able to diagnose all storage locations of the data storage unit.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the present invention.
...Memory error display section, 12...Memory diagnosis section, 1
3...Data storage unit, 14...Memory error record 11
: Memory error display section 12: /Oshiri t gold ball/lr section 13: De Z Ji Zhang, Guo + 4: ) t also So error self + demon part 1 Figure 1

Claims (1)

[Scope of Claims] Data storage means having a plurality of packages each assigned a unique number and a plurality of storage locations included in each package and each assigned a unique address; and memory error storage means. and diagnostic means for sequentially diagnosing the plurality of storage locations of the data storage means and storing in the memory error storage means the number of the package to which the storage location in which an error is detected belongs, and the number of the package stored in the memory error storage means. A memory diagnostic method comprising display means for displaying a package number.