JPS5987564A - Transferring system of logging information - Google Patents

Abstract

PURPOSE:To simplify the constitution by using only one communication line adaptor, by executing concentrically a transfer of a log data by a specified service processor, in a computer system of multi-constitution. CONSTITUTION:When a main service processor SVP2A calls a maintenance center and connects a line, the maintenance center outputs a transfer request of a log data to the main SVP2A. The main SVP2A reads a log file 3A of the own system and transfers its data to the maintenance center. Thereafter, the main SVP2A outputs a log data request by an interruption to a sub-SVP2B. When this request is received, the sub-SVP2B reads a log file 3B of the own system, transfers its data to the main SVP2A, and also transfers it to the maintenance center. As for the log data which the maintenance center receives, an identifier, etc. for showing a CPU sequence are attached to every log data in advance, therefore, it can be discriminated easily.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to a logging information transfer method in a multi-configuration computer system connected to a center.

Background of the Technology When an abnormality occurs in a computer system, a method is used in which various information at that time is stored in an external storage device and later analyzed to determine the cause of the failure, the location of the failure, etc. Generally, this information is called logging information (or log information) and consists of the following information. (1)
These include the date and time of occurrence, the type of event, (21fil computer failure information, (3) channel failure information, (4) power supply abnormality information, etc.).

In systems where a service processor (SVP) is installed for the purpose of maintenance of the n1 computer (CPU), etc., this log information is collected as follows and is stored in an auxiliary storage device such as a Fronbi disk, which is the external storage of the SVP. is stored in l
a) Date and time of occurrence: Find out by referring to the SVP's built-in clock. (
b) Types of events: Collected through hardware interrupts, microprogram interrupts, and SVP patrols. <Cl hardware information i11: Collected by scanning out by SVP or reading status by microprogram.

In a multi-configuration total W, ta system, SV for each CPU
It is common to provide P, and the logging data of each CPU is collected by the corresponding SVP. Figure 1 is a configuration diagram of a simple multi-system (two CPUs), where IA and IB are computers (CPtJ) and 2A.

2B is a service processor (SVP), 3A and 3B are log files using auxiliary storage media such as floppies, and 4
is the channel (CH). The CPUs IA and IB normally execute independent jobs, but the advantage of a multi-system is that if the number of jobs for one increases, the other can shoulder part of the burden. The cross line IL in the figure is this connection.

Furthermore, an information transfer path 5 is provided between the 5VPs 28 and 213.

Prior Art and Problems The collected log data is periodically transferred to a maintenance center through a communication line. In addition to the above, the purpose of connecting a computer system in a remote location and a maintenance center via a communication line is to (1) operate the local system by a full-time maintainer at the maintenance center, and (2) transmit information from the maintenance center to the site (parts information). ), (31 maintenance center, exchange of messages between the field, etc.) To use the communication line for these purposes, an adapter is required to connect the SVP and the communication line.

FIG. 2 is an explanatory diagram of this, where 1 is a CPU, 2 is an SVP, 6 is an adapter, 7 is a communication line (telephone line), and 8 is a maintenance center.

Figure 2 takes a system with only one CPUI as an example, but in a system with two CPUs [A and IB] as shown in Figure 1, adapters are inserted into the corresponding 5VPs 2A and 2B. Must. This is because the conventional multi-system records the log information of each CPtJ on each S.
This is because the VPs were set to transfer data individually, but since one adapter is sufficient for each line, the conventional design δ1 concept is wasteful.

OBJECTS OF THE INVENTION The present invention enables a single communication line adapter to be used in a multi-computer system by concentrating log data transfer in a specific SVP.

Structure of the Invention The present invention provides a plurality of computers, a service processor provided for each computer to collect logging information of the needle Km, a first information transfer means that allows information to be transferred between the service processors, In a method of transferring logging information from a computer system having an auxiliary storage device for storing logging information of each computer to a center via a communication line, logging information stored in the auxiliary storage device is transferred to a specific service process. It is characterized in that the second information transfer means attached to the nose is shared to transfer information to the center, and this will be explained in detail below with reference to the illustrated embodiment.

Embodiment of the Invention FIG. 3 shows the transmission procedure of the first embodiment of the present invention. The system configuration is as follows: 2A in FIG.
Defined as p, communication line adapter 6 for main 5VP2A etc.
It is attached. Therefore, the system configuration of this example is similar to the embodiment shown in FIG. 6, which will be described later. However, the difference from FIG. 6 is that each log file 38, 3B stores only the log data of the corresponding (own system) CPUIA, IB. In FIG. 1, the service processor 2A collects log information f4 of the computer 1A and its channel 4, stores it on a floppy disk (log file) 3Δ,
The service processor 2B collects log information of the computer 1B and its channel 4 and stores it in the floppy disk 3B. Since only the service processor 2A has an adapter that can communicate with the center, log data is transmitted to the center as follows.

In FIG. 3, when the main 5VP 2A first calls the maintenance center and connects the line, the center issues a log data transfer request to the main 5VP 2A.

Upon receiving this, the main 5VP 2A reads its own log file 3A and transfers the data to the maintenance center.

The process up to this point is the same as before. However, after this, the main 5V
P2A issues a log data request to slave 5VP2B by interrupt. After receiving this request, the slave 5VP 2B reads its own log file 3B and transfers the data to the main 5VP 2A via the information transfer path 5, and the main 5VP 2A further transfers (relays) this to the maintenance center. . Whether log data received by the maintenance center relates to CPU 2A or 2B can be easily determined because each log data is assigned an identifier (ID) indicating the CPU series in advance (the same applies in the example below). ).

FIG. 4 is a block diagram showing a second embodiment of the present invention. In the example in Figure 3, the log data is stored in a distributed manner, so when displaying (printing) and analyzing the log data on the computer system side, or when sending it to the maintenance center via the line, the log data of each CPU is It is sometimes difficult to understand the interrelationships of data. Therefore, in this example, log data of all CPUs is stored in a concentrated manner in the log file 3A on the main 5VPzA side. Figure 5 does not show the procedure for storing this log data.
- Qiw l"teal. The point that each 5VP 2A and 2B individually collect log data of CPUIA and IB is similar to the second embodiment, but after collection, storage in the log file is performed by the main SVP. In other words, if it is the main 5VP2A, the log data is stored in the log file 3A, but if it is not the main SvP, that is, if it is the secondary 5VP2B in the example of Fig. 4, the log data is stored in the log file 3A by interrupting the main 3VP2A. The data is simply transferred via the transmission path 5.The main 5VP2A that received the interrupt determines whether or not to transfer the log, and if YES, it receives the log data from the secondary 5VP2B and writes it to the log file 3A. Store.

In this way, log data related to all CPUIA and IB are stored in the common file 3A, which is convenient for subsequent analysis. Moreover, the transmission procedure at the maintenance center is simplified because the main 5VP 2A only needs to send the contents of the file 3A.

Furthermore, although one log file is basically sufficient for the system, there is a problem in that the slave side cannot be operated independently (log data cannot be collected). If a log file is set in advance for each SVP Lt-ζ, system reliability can be improved by doing as shown in FIG.

That is, in the third embodiment of the present invention shown in FIG. 6, all CPUIAs are stored in each log file 3A, 3B.

Duplicately record IB log data. In other words, the role of transferring log data to the maintenance center is limited to the specific 5VP2A in which adapter 6 is installed, but 5VPZ
There is no master-slave relationship between Δ and 2B, and each SvP is its own CP.
The log data to U is stored in the log file of the own system, and is also transferred to the SVP of the other system and stored in that log file as well.

! Figure 7 is flowchart 1 showing this.

In this way, the log data is recorded twice, so even if a failure occurs in either file 3Δ or 3B, or if a failure occurs in either 5VI) 2A or 2B during log analysis, the log data will not be output. is possible.

Effects of the Invention As described above, according to the present invention, a multi-configuration ftH
? :Even in the tffl system, one service processor (
Since it is sufficient to provide line adapters (=J) only for the SVP, the configuration is simplified and the cost is low.

[Brief explanation of the drawing]

Figure 1 is a schematic diagram of a general multi-computer system.
Figure 2 is an explanatory diagram of the line adapter, and Figure 3 is the first diagram of the present invention.
FIGS. 4 and 5 are block diagrams and flowcharts showing the second embodiment of the present invention, and FIGS. 6 and 7 are the third embodiment of the present invention. FIG. 1 is a block diagram and flowchart 1. In the figure, IA and IB are CPU (divider) and 2A. 2B is SVF' (service processor)-3-A, 3
B is a log file (auxiliary storage device), 5 is an information transfer procedure between SVPs, 6 is a line adapter, 7 is a communication line, and 8 is a maintenance center. Applicant Fujitsu Limited Representative Patent Attorney Minoru Aoyagi

Claims (1)

[Claims]+1+a plurality of 1iIW- machines, a service processor provided for each computer and collecting logging information of the computer;
From the former Shinoki system, which has a first information transfer means that allows information to be transferred between the cough di-bis processors, and an auxiliary storage device that stores logging information of each computer,
In a method of transferring the logging information 913 to the center via a communication line, the logging information stored in the auxiliary storage device is transferred to the ff1 installed in a specific service processor.
A logging information transfer method characterized in that two information transfer means are shared to transfer the information to the center. (2) Supplementary note 1. A Q device is provided for each Ml computer, and when the Zu-bis processor collects the logging information of its own computer, stores it in its auxiliary storage device, and transfers the logging information to the center via the communication line. In this case, the specific service processor equipped with the second information transfer means directly transmits the logging information of the auxiliary section 1.1 device of its own system through the second information transfer means, and to the service processor other than the above. is an auxiliary record of own lineage 1. a The logging information of the device is
The logging information according to claim 1, wherein the logging information is transferred to the specific service processor by a second information transfer means, and the specific service processor transfers it to the center by a second information transfer means. Transfer method. (3) An auxiliary storage device is provided in the computer to which a specific service processor belongs, and each service processor stores the logging information of its own divider directly to the auxiliary storage device if it is a specific service processor; 2. The logging information transfer method according to claim 1, wherein if it is a service processor, the logging information is transferred to a specific service processor via the first information transfer means and stored in an auxiliary storage device by the specific service processor. (4) An auxiliary storage device is provided for each WR, and each data
The service processor stores the logging information of the 81 computer in its own system in its own auxiliary storage device, issues a request to transfer the logging information to another service processor, and the information is transferred via the first information transfer means. The logging information transfer method according to claim 1, wherein the logging information of the other system is stored in the auxiliary storage device of the own system.