JP2005063286A - Driver program for disk device and program for testing disk device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device driver for a disk device for quickly testing a dual port disk device. <P>SOLUTION: A device driver 20 for a disk device is configured(prepared ) as a program for controlling the two interface circuits of a computer and a program for accepting the specification of contents to be performed to the dual port disk device 60 by using those two interface circuits, for executing the processing of the specified contents, and for executing processing to output the processing results. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a disk device driver program and a disk device test program for testing a dual port disk device.

  As is well known, high-speed performance, large capacity and high reliability have been realized by combining multiple disk devices among the disk devices (magnetic disk devices, optical disk devices, etc.) sold in recent years. Various devices with different performance such as a disk device (so-called disk array device) and a disk device (so-called dual port disk device; see, for example, Patent Document 1) that can be used simultaneously from two hosts, Existing.

  In the development (or repair) of the disk device as described above, the performance of the disk device is tested. However, the conventional test method has a problem that the performance test of the disk device is not completed in a short time. It was supposed to have.

  Specifically, conventionally, in order to test the performance of the disk device, the disk device is operated using an application program (hereinafter referred to as a test program) that can cause the disk device to sequentially perform various processes. Such a method is used.

  According to the method using the test program, the test is completed in a shorter time than when the test program is not used (when a test is performed by using a disk device from a general application program). However, in this method, the timing at which the command is actually transmitted to the disk device is left to the operating system (OS) and the device driver. Conventionally, when it is desired to perform a test that requires the designation of (transmission timing), the test has to be repeated many times until a command is transmitted at a desired timing.

In particular, the test of the dual port disk device by the conventional method is a device that requires confirmation of the operation contents when the dual port disk device receives commands synchronously at two ports. It took a long time.
JP-A-4-364514

  The present invention has been made in view of the above situation, and an object of the present invention is to provide a disk device device driver and a disk device test program capable of performing a performance test of a dual port disk device in a short time. Is to provide.

  In order to solve the above problems, in the present invention, a disk device driver program for a dual port disk device is installed in a computer having at least two interface circuits for communicating with the dual port disk device. A driver program for performing control for using a dual port disk device for two interface circuits, wherein a series of programs for a dual port device to be executed by using one of the two interface circuits in a computer. An instruction for requesting storage of processing content specifying information for specifying the content of processing and the execution timing of some of the processes is received, and the processing content specifying information that the received instruction requests to store is received. Receiving / storing process and receiving / storing process Outputs information about the execution process that executes the specified process using the two interface circuits, and the results of each process executed by the execution process. The driver program can execute the output process.

  When the dual port disk device is actually tested (execution of the execution process) by the computer in which the disk device driver program is installed, instructions are not exchanged between the application program and the OS (device driver). . For this reason, by using the disk device driver program of the present invention, a test that requires specification of a transmission time between commands (transmission timing of each command) can be performed without repeating the test many times as in the past. You can do it. As a result, the dual port disk device can be tested in a short time.

  When testing a dual port disk device using the disk device driver program of the present invention, the disk device driver program may be operated using a function attached to the OS. However, “the contents of a series of processes for a dual-port disk device to be executed using one of the two interface circuits input by the operator, and the execution timing of some of the processes among them. Based on the information that specifies, the instruction generating means for generating an instruction for storing the information as processing content specifying information and receiving it in the reception / storage process, and starting the execution process based on the instruction from the operator It is desirable to prepare a disk device test program that operates as a device including an instruction unit and an information presentation unit that presents information output by the output process to an operator. This is because, if such a disk device test program is prepared, it is easier (in a form that requires less work to be performed by the operator) and dual than when using the functions attached to the OS. This is because the port disk device can be tested.

  Further, when realizing the disk device driver program of the present invention, the reception / storage processing designates execution of processing for transmitting a command in which some values are abnormal values to the dual port disk device. Processing content specification information including information can be accepted, and the execution processing can be executed to send a command in which some values are abnormal values to the dual port disk device. I can leave. When the disk device driver program is realized in this way, the operation content of the dual port disk device can be confirmed when noise is added to the command transmitted from the computer to the dual port disk device. A disk device driver program is obtained.

  The disk device driver program of the present invention may be prepared for a dual port disk device controlled by any protocol, for example, a dual port disk device connected to a computer by a fiber channel. A dual port disk device controlled by a protocol encapsulating a small computer system interface (SCSI), such as a dual port disk device connected to a computer via an Ethernet (trademark of Xerox Corp.) cable, or a SCSI cable It can be created for a dual port disk device connected to a computer.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.

  As schematically shown in FIG. 1, a disk device test program 10 (in the figure, a test program) and a disk device driver program 20 (in the figure, a device driver) according to an embodiment of the present invention are fiber Two host bus adapters 52 (interface circuits / boards for communicating with other devices via FC) are used to test a dual port disk device 60 of a type connected to other devices via a channel (FC). It is a program installed in the computer 50 provided.

  The disk device test program 10 (hereinafter also referred to as the test program 10) and the disk device driver program 20 (hereinafter also referred to as the device driver 20) have two ports that the dual port disk device 60 has. (Hereinafter referred to as port A and port B) A test of the operation contents of the dual port disk device 60 when the command issuance is performed in a relatively short time (hereinafter referred to as a synchronous issue test). ), A test of the operation content of the dual port disk device 60 in response to an abort command (command for discarding commands queued in the dual port disk device 60) (hereinafter referred to as an abort test) can be easily performed. With a program created to That. In addition, the test program 10 and the device driver 20 are created so that it is possible to easily test the operation contents of the dual port disk device 60 when receiving a frame with an abnormal content (a frame in which a part of the data is destroyed). Program.

  The test program 10 and the device driver 20 are programs created for UNIX (installed in the computer 50 using UNIX as the OS). UNIX is a trademark of The Open Group.

  Based on the above, the contents of the test program 10 and the device driver 20 according to the present embodiment will be described in detail below.

  The test program 10 according to the present embodiment is a process for accepting designation regarding the contents of a test performed on the dual port disk device 60, and a process for performing a test of the designated contents using the device driver 20 (designated contents). This is a program that causes the computer 50 to perform processing for displaying the test result and the like. The device driver 20 is a driver program that causes the OS of the computer 50 to function as an OS that can execute various processes (a program that causes the computer 50 to operate as an apparatus that can use various system calls). It is a program that can control the two host bus adapters 52 provided in.

  First, the contents of the process performed by the test program 10 in order to accept an operator's instruction regarding the contents of the test performed on the dual port disk device 60 will be described with reference to FIGS.

  As schematically shown in FIG. 2, the test program 10 includes a main window 11, a scan window 12, a sync window 13, a command window 14, and an edit. A window (Edit Window) 15, a log window (Log Window) 16, and the like are programs that can be displayed on the computer 50.

  Of these windows, the main window 11 is a window having the configuration shown in FIG. 3 that is displayed first by the activated test program 10.

  The "Config" button, "Scan" button, "Buffer" button, "Log" button, "Trace" button, and "Statistic" button on the main window 11 display a window with the same name or almost the same name (see Fig. 2). (A button that causes the test program 10 to display a corresponding window when the button is pressed). The “Stop” button, “Break” button, “All Break” button, and “All Stop” button are one or a plurality of (all) tasks (details will be described later) that the test program 10 (device driver 20) is executing. ) Is a button for terminating and interrupting. The “ReStart” button and the “All Restart” button are buttons for causing the device driver 20 to continue one or all of the suspended tasks.

  The task information display area 111 is an area in which information relating to tasks that have already been completed and tasks that are being executed / suspended is displayed. The task information display area 111 is also an area for selecting a task to be interrupted or continued. The main window 11 shown in FIG. 3 shows various types of information in the task information display area 111, but the main window 11 displayed immediately after the test program 10 is started is a task information display. Nothing is displayed in the area 111.

  As shown in FIG. 4, the scan window 12 includes a “Single” button 121, a “Dual” button 122, a “Port A” button 123, a “Port B” button 124, a disc information display area 125, and the like. is there. The disk information display area 125 of the scan window 12 is an area in which information (serial number, vendor name, etc.) regarding each dual port disk device 60 connected to the computer 50 is displayed. This disk information display area 125 is also an area for designating the dual port disk device 60 to be tested.

  The “Single” button 121 is a button for notifying the test program 10 that a test using only one port of the dual port disk device 60 is performed. The “Port A” button 123 and the “Port B” button 124 are buttons for designating which one of the ports is port A or port B. The “Port A” button 123 is pressed. If so, the test program 10 edits the command window 14 for setting the test contents for the port A (FIG. 5; details will be described later) and the contents of the command list shown in the command window 14. A window 15 (FIG. 6; details will be described later) is displayed. When the “Port B” button 124 is pressed, the test program 10 edits the command window 14 for setting the test contents for the port B and the contents of the command list shown in the command window 14. An edit window 15 is displayed.

  The “Dual” button 122 is a button for notifying the test program 10 that a synchronous issue test is to be performed. When the “Dual” button 122 is selected, the test program 10 displays the currently displayed scan window 12 with a “Port A & B, timing” button instead of the “Port A” button 123 and the “Port B” button 124. Change to what is being. When the “Port A & B, timing” button is pressed, the test program 10 includes a command window 14 for setting test contents for port A, and a command window 14 for setting test contents for port B. The edit window 15 and the sync window 13 (FIG. 7; details will be described later) are displayed.

  The command window 14 displayed by pressing the “Port A” button 123 or the like is a window having a task definition information input field 141, an “Exec” button 142, a command list display area 143, etc., as shown in FIG. is there.

  The command list display area 143 on the command window 14 is an area where the contents of the set command list are displayed. Here, the command list is a command (command for instructing execution of processing relating to CDB [Command Descriptor Block] information itself, Task Management, Primitive Sequence, and Primitive Signal) and option information set for the command. And a list of information including type information which is information on the W / R type and transfer data size of the command, and a command number (in the present embodiment, a numerical value of 000 to 127). Note that option information refers to additional information when processing the corresponding command, such as “Send an abort command after sending the corresponding command” or “Destroy part of the content when the corresponding command (frame) is sent”. It is information that defines the content of the process to be performed. Also, the information shown in the command number area 142a, option information area 142b, CDB area 142c, and type information area 142d in FIG. 5 is a command number, option information, command, and type information, respectively.

  The task definition information input column 141 is a column in which an operator should input information that defines the content of a task to be executed by the test program 10 (and the device driver 20), and the “Exec” button 142 is a task definition information input. This is a button for causing the test program 10 (and the device driver 20) to start a task having the contents defined by the information input in the column 141. The test program 10 according to the present embodiment is a program that can specify the contents of a task by inputting information in a predetermined format including several command numbers in the command list in the task definition information input field 141. It has become. Specifically, the test program 10 inputs information such as “ex 0” and “ex 0, 2, 3” into the task definition information input field 141, so that only the command with the command number “000” is displayed. Execution, execution of command numbers “000”, “002”, “003” can be specified, and by inputting information such as “exm 0,2,3” into the task definition information input field 141, the command number “ The program can specify that three commands 000 "," 002 ", and" 003 "are executed without waiting for completion.

  In short, the test program 10 is a program that requires the operator to set a command list before performing an operation of specifying the contents of a task to be executed. An edit window 15 displayed by the test program 10 is a window for creating and editing this command list.

  More specifically, as the edit window 15, six types (see FIG. 2) having different types and numbers of information that can be set are prepared for each type of command.

  For example, an edit window 15 for setting CDB (Command Descriptor Block) information is a window having the configuration shown in FIG.

  The CDB information setting column 151 on the edit window 15 is a column for setting CDB information (information for causing the dual port disk device 60 to perform a read operation and a write operation) to be included in the command list. The “ABTS” button 152 is a button for setting the option information of the command set in the CDB information setting field 151 as information for instructing “to send an abort command after sending the corresponding command”. The “Frame op” button 153 is used to set the option information of the command set in the CDB information setting field 151 as information instructing that “a part of the content is destroyed when the corresponding command (frame) is transmitted”. It is a button.

  The “Set & Down” button, “Set & Up” button, and “Set” button on the edit window 15 actually reflect the information set in the CDB information setting field 151 and the like in the contents of the command list. It is a button for. Note that the three buttons are provided as buttons for updating the contents of the command list so that the contents of the edit window 15 to be displayed after updating the contents of the command list can be designated.

  In short, when a test using only one port of the dual port disk device 60 is performed, the operator displays the scan window 12 (FIG. 4) and designates the dual port disk device 60 to be tested, CDB information. For creating a command list using various edit windows 15 and command windows 16 (FIG. 5) represented by the edit window 15 (FIG. 6), and “ex 0,1” in the task definition information input field 141 , 2, 3 ", etc., to enter the test content, etc. When the “File” menu is operated, the command window 16 (FIG. 5) reads an instruction for saving information (command list) displayed in the command list display area 143 and a saved command list. It is a window where the operator can give instructions. That is, among the operations described above, the command list creation operation using the edit window 15 may be omitted.

  On the other hand, when the synchronization issue test is performed (when the “Dual” button 122 on the command window 14 is selected), the sink window 13 is also used to set the test contents.

  As shown in FIG. 7, the sync window 13 includes a port A processing content defining information input field 131, a port B processing content defining information input field 132, an “Exec” button 133, a “Primary Port A” button 134, The window includes a “Primary Port B” button 135, a delay time setting field 136, and the like.

  The port A processing content defining information input field 131 on the sync window 13 is information ("0", "0, 1, 2") consisting of several command numbers in the port A command list (see FIG. 5). , 3 ", etc.) are fields that are input by the operator as information defining the contents of processing to be performed for port A. In the port B processing content defining information input field 132, information consisting of several command numbers in the port B command list is input by the operator as information defining the content of processing to be performed on port B. It is a column.

  The “Primary Port A” button 134 and the “Primary Port B” button 135 are buttons for designating whether to perform the synchronization issue test based on the command transmission to the port A or the command transmission to the port B. The delay time setting field 134 shows the number of seconds (usually 1 msec or less) after the command transmission to the port designated as the reference by the “Primary Port A” button 134 / “Primary Port B” button 135, This is a column for designating whether to send a command to the port. It should be noted that the test program 10 is presumed from the fact that the delay time setting field 134 is composed of a “Start” value input field, an “End” value input field, and a “Step” value input field. In this program, the synchronous issue of commands can be repeatedly performed with the delay time sequentially changed.

  In other words, the synchronous issue test is a test that needs to specify what command is sent to port A and port B at what timing. These settings are also made using the window 13. Although not described in detail, the test program 10 is a program that can specify command issue intervals for tests other than the synchronous issue test.

  Next, after the contents of a test to be performed on the dual port disk device 60 are specified using the various windows as described above, the computer 50 (the test program 10 is actually instructed to start the test). The operation of the device driver 20) will be described.

  First, in order for the operator to perform an abort test on port A of the dual port disk device 60, some commands for which option information is not particularly set in the task definition information input field 141 of the command window 14 (FIG. 5). After pressing the "Exec" button 142, enter the command number related to the command number and the command number related to the command for which the option information that means "Send abort command after sending the corresponding command" is set. The operation of the computer 50 in this case will be described.

  In this case, the computer 50 performs processing of the procedure shown in FIG. Note that the processing of the procedure shown in FIG. 8 is actually performed to determine which dual port disk device 60 is the test target (setting contents of the scan window 12), and each host bus adapter. When a process for notifying the device driver 20 of the relationship between the port 52 and the port (setting contents of the Configuration Window (see FIG. 2)) and the like, a predetermined process (a deterrence state release instruction / synchronization process start instruction described later) is received. After the completion of the process executed) is instructed to notify the test program 10 by a signal (information sent to another process for interruption by the UNIX OS). is there. In the following, for the convenience of explanation, the content of the processing executed by the test program 10 is expressed as “the test program 10 issues an instruction for causing the device driver 20 to perform” or the like. The process executed by the test program 10 is a process for issuing various system calls (ioctl ()) that can be used by installing the device driver 20.

  In other words, the test program 10 first issues a command issue suppression instruction to the device driver 20 by making a predetermined system call. Here, the command issuance suppression instruction is a state in which the device driver 20 is not immediately executed an instruction (command) passed from the test program 10 thereafter (only prepares to issue a command instructed to be transmitted). This is an instruction for starting the operation (S1).

  Next, the test program 10 sequentially reads the command and option information identified by each command number input in the task definition information input field 141 from the command list, and for each command for which option information is not particularly set, A process of issuing a command issuance instruction for transmitting the command to the dual port disk device 60 to the device driver 20 is started.

  Upon receiving the command issuance instruction issued by this process, the device driver 20 notifies the test program 10 of tagid, which is identification information attached to the command issuance instruction, and issuance instruction by the command issuance instruction. The command issuance preparation process (S2, S3, S4) is performed to make the command ready to be immediately transmitted to the dual port disk device 60 (in this case, port A).

  In addition, when the command that is the processing target of the above processing is set with option information, the test program 10 performs processing according to the option information. Specifically, the test program 10 sends the abort target command to the device driver 20 with respect to a command for which option information that means “to send an abort command after sending the corresponding command” is set. Is issued to the dual-port disk device 60, and an abort command issuance instruction is issued to instruct issuance of an abort command for discarding the abort target command. Note that the test program 10 uses the command to be transmitted to the device driver 20 for a command in which option information that means “destroy a part of the content when the corresponding command is transmitted” is set. And an instruction that specifies information to be processed when the command is transmitted.

  Then, the test program 10 that has issued the abort command issue instruction issues an inhibition state release instruction to instruct the device driver 20 to release the inhibition state.

  The device driver 20 that has received this inhibition state release instruction sequentially issues issuance-prepared commands (usually several commands and aborts) to the dual-port disk device 60, and the dual-port disk device for each command. The process (S5) for storing the response returned by 60 is started. Then, when the processing is completed, the device driver 20 notifies the test program 10 with a signal.

  Upon receiving this signal, the test program 10 sends an end instruction for terminating the use of the dual port disk device 60 and a processing result request instruction for outputting the response group received from the dual port disk device 60. Issue to the driver 20. Thereafter, the test program 10 stores the response group received from the device driver 20 as a response to the processing result request instruction in a form in which the correspondence relationship with each process executed by the device driver 20 is known.

  When the “Log” button on the main window 11 (FIG. 3) is pressed, the test program 10 is configured as shown in FIG. 9 based on the response group received from the device driver 20. By displaying the “Log” window 16, the test result (whether or not the abort command has been processed correctly) is presented to the operator. Note that the “Log” window 16 shown in FIG. 9 is displayed after a more complicated content test.

  Next, the operation of the computer 50 during the synchronization issuance test will be described by taking as an example a case where a command is transmitted to the port A and then a command is transmitted to the port B after a predetermined time. .

  In this case, in the computer 50, the processing shown in FIG. 10 is performed by the test program 10 and the device driver 20. The process shown in FIG. 10 is similar to the process shown in FIG. 8 as to which dual port disk device 60 is to be tested, each host bus adapter 52 and Processing for notifying the device driver 20 of the relationship with the port and the like, processing for instructing the test program 10 to notify the completion of the predetermined processing by a signal, and the like are processing executed after being performed. ing.

  That is, in this case, the test program 10 first issues a port A synchronization processing registration instruction to the device driver 20. Here, the port A synchronization processing registration instruction is an instruction including a command to be issued to port A and information indicating that the command is a command for performing a synchronization issuance test.

  Upon receiving this port A synchronization processing registration instruction, the device driver 20 notifies the test program 10 of the tagid attached to the instruction and the command instructed to be issued by the instruction is dual port. A command issuance preparation process (S11) for enabling immediate transmission to port A of the disk device 60 is performed.

  The test program 10 that has received this tagid for the port A synchronization process registration instruction issues a port B synchronization process registration instruction to the device driver 20. Similarly to the port A synchronization process registration instruction, the port B synchronization process registration instruction includes a command to be issued to the port A and information indicating that the command is a command for performing a synchronization issuance test. It is an instruction including. Upon receiving this port B synchronization processing registration instruction, the device driver 20 notifies the test program 10 of the tagid attached to the instruction and the command instructed to be issued by the instruction is dual port. A command issuance preparation process (S12) for enabling immediate transmission to port B of the disk device 60 is performed.

  On the other hand, the test program 10 that has received the tagid for the port B synchronization processing registration instruction provides the device driver 20 with information specifying the delay time and information indicating which port the command transmission is based on. Including a synchronous processing start instruction (content instruction corresponding to the setting contents of the sync window 13).

  The device driver 20 that has received this synchronous processing start instruction issues a command to the port designated to be the reference (S13), and then waits for the designated delay time to elapse before Processing for issuing a command (S14) is performed.

  Then, when the processing is completed, the device driver 20 notifies the test program 10 by a signal as in the abort test (see FIG. 8).

  Upon receiving this signal, the test program 10 outputs a termination instruction for terminating the use of the dual port disk device 60 and a response group received from the dual port disk device 60, as in the abort test. A result request instruction is issued to the device driver 20. Thereafter, the test program 10 stores the response group received from the device driver 20 as a response to the processing result request instruction in a form in which the correspondence relationship with each process executed by the device driver 20 is known, and the main window 11 ( When the “Log” button in FIG. 3) is pressed, the “Log” window 16 having the configuration as shown in FIG. 9 is displayed on the basis of the response group and the like to the operator. Present test results.

  Since the operation at the time of testing more complicated contents is essentially the same as described above (in some cases, the above two processes are combined), detailed description will be omitted. .

  As described above, the disk device driver program 20 (device driver 20) according to this embodiment includes the computer 50 including the two host bus adapters 52 (corresponding to the interface circuit) in which the program is installed. The device operates as a device that performs a test on two ports of the dual-port disk device 60 in a manner in which instructions are not exchanged between the application program (disk device test program 10) and the OS (device driver 20). It is a program that can be made to. Therefore, if this disk device driver program 20 is used, various tests that require specification of the transmission time between commands (transmission timing of each command) for the dual port disk device 60 are repeated many times as in the past. You can do it without having to repeat the test (in less time). Further, since it is possible to transmit a frame (command) in which some values are abnormal values to the dual port disk device, if the disk device driver program 20 according to the present embodiment is used, It also becomes possible to test the operation of the dual port disk device 60 when noise is added to the command transmitted to the dual port disk device 60.

<Deformation>
The disk device driver program 20 and the disk device test program 10 described above can be variously modified. For example, the disk device driver program 20 is a program for the dual port disk device 60 connected to other devices via fiber channel, but the disk device driver program 20 is connected to other devices via a SCSI cable. It may be modified to a dual port disk device of the type or a dual port disk device of a type that is connected to other devices by an Ethernet cable.

  Further, the disk device test program 10 may be modified to display a window having a configuration different from that described above. Further, the disk device driver program 20 and the disk device test program 10 may be modified to those for OS other than UNIX, and the disk device driver program 20 and the disk device test program 10 are described above. Of course, it is not necessary to have all functions.

(Supplementary Note 1) Control for using the dual port disk device, which is installed in a computer having at least two interface circuits for communicating with the dual port disk device, is applied to the two interface circuits. A disk device device driver
For the computer
Accepts an instruction for requesting storage of process content designation information for designating the contents of a series of processes for the disk device to be executed using one of the two interface circuits and the execution timing of each process. Accepting / storing process that stores process content specification information that is requested to be stored,
An execution process for executing each process whose contents and execution timing are specified in the process content specifying information stored in the reception / storage process as specified using the two interface circuits;
An output process for outputting information related to the result of each process executed by the execution process is executed.

(Additional remark 2) The process which can receive the said process content designation | designated information including the information which designates execution of the process in which the said reception / storage process transmits the command which made some values abnormal value with respect to the said disk apparatus And
2. The disk device driver program according to appendix 1, wherein the execution processing is processing capable of executing processing for transmitting a command in which some values are abnormal values to the disk device.

(Additional remark 3) Each of the interface circuits of the said dual port disk apparatus and the said computer communicates by the protocol which encapsulated the SCSI protocol, The additional remark 1 or Additional remark 2 characterized by the above-mentioned. Driver program for disk devices.

(Supplementary Note 4) The disk device driver program according to any one of Supplementary Notes 1 to 3, wherein each interface circuit of the dual port disk device and the computer is connected by a fiber channel. .

(Supplementary Note 5) In a computer in which the device driver for a disk device described in any one of Supplementary Notes 1 to 4 is installed,
Based on information that is input by an operator and that specifies the contents of a series of processes to be executed on the disk device using the interface circuit and the execution timing of each process, the information is designated as the process contents designation information. An instruction generation means for generating an instruction to be stored as an instruction and causing the reception / storage process to receive the instruction;
Start instruction means for starting the execution process based on an instruction from an operator;
A disk device test program which is operated as a device comprising information presenting means for presenting information output by the output processing to an operator.

(Appendix 6) A disk device test method for testing the dual port disk device using a computer having at least two interface circuits for communicating with the dual port disk device,
In the computer,
For the computer
An instruction for requesting storage of process content designation information for designating the contents of a series of processes and the execution timing of each process to be executed by using one of the two interface circuits is received and received. Accepting / storing process that stores process content specification information that is requested to be stored,
An execution process for executing each process whose contents and execution timing are specified in the process content specifying information stored in the reception / storage process as specified using the two interface circuits; and
Install a device driver that executes an output process that outputs information on the result of each process executed by the execution process, and
On the computer,
The computer,
Based on information that is input by an operator and specifies the contents of a series of processes to be executed on the disk device using the interface circuit and the execution timing of each process, the information is specified as the process contents specifying information. An instruction generation means for generating an instruction to be stored as an instruction and causing the reception / storage process to receive the instruction;
Start instruction means for starting the execution process based on an instruction from an operator; and
A disk device test characterized in that the dual port disk device is tested by executing a disk device test program that operates as a device comprising information presenting means for presenting information output by the output process to an operator. Method.

It is explanatory drawing of the usage condition of the disk apparatus test program and the disk apparatus device driver concerning one Embodiment of this invention. FIG. 5 is a diagram showing the relationship between various windows displayed by a disk device test program. It is explanatory drawing of the main window which the disk apparatus test program displays. It is explanatory drawing of the scan window which the program for a disk apparatus test displays. It is an explanatory diagram of a command window displayed by the disk device test program. FIG. 10 is an explanatory diagram of an edit window displayed by a disk device test program. FIG. 10 is an explanatory diagram of a sync window displayed by a disk device test program. It is a sequence diagram for explaining the contents of processing performed by a disk device test program and a device driver. It is explanatory drawing of the log window which the program for a disk apparatus test displays. It is a sequence diagram for explaining the contents of processing performed by a disk device test program and a device driver.

Explanation of symbols

10 Disk Device Test Program 11 Main Window 12 Scan Window 13 Sync Window 14 Command Window 15 Edit Window 16 Log Window 20 Disk Device Device Driver 50 Computer 52 Host Bus Adapter 60 Dual Port Disk Device

Claims (5)

A disk device that is installed in a computer having at least two interface circuits for communicating with a dual port disk device, and that controls the two interface circuits to use the dual port disk device A driver program for
For the computer
Storage of processing contents designation information for designating the contents of a series of processes for the dual port disk device to be executed using one of the two interface circuits and the execution timing of some of the processes. Receiving / storing processing for storing processing content designation information requesting that the received instruction is stored;
An execution process for executing each process whose contents and execution timing are specified in the process content specification information stored in the reception / storage process as specified by controlling the two interface circuits;
An output process for outputting information related to a result of each process executed by the execution process is executed. The accepting / storing process is a process capable of accepting the process content designation information including information designating execution of a process of transmitting a command having some values as abnormal values to the dual port disk device. ,
2. The disk device driver program according to claim 1, wherein the execution processing is processing capable of executing processing for transmitting a command in which some values are abnormal values to the dual port disk device. . The disk device according to claim 1, wherein each of the dual port disk device and each interface circuit of the computer performs communication using a protocol encapsulating a SCSI protocol. Driver program. 4. The disk device driver program according to claim 1, wherein the dual port disk device and each interface circuit of the computer are connected by a fiber channel. 5. A computer in which the device driver for a disk device according to any one of claims 1 to 4 is installed,
Specify the contents of a series of processes for the dual-port disk device that should be executed using either of the two interface circuits input by the operator, and the execution timing of some of them. Instruction generating means for generating an instruction for storing the information as the processing content designation information based on the information to be received and receiving the information in the reception / storage process;
Start instruction means for starting the execution process based on an instruction from an operator;
A disk device test program, comprising: an information presentation unit that presents information output by the output process to an operator.

Images