TW201104419A - A method of capacity planning, a method of reading and a method of accessing revision of physical storage device therefore - Google Patents

Abstract

A method of capacity planning, a method of reading and a method of accessing revision of physical storage device therefore. When the computer booting, the computer plans the capacity of the physical storage device. The capacity planning method comprises the steps. Finding the physical storage device that connect to the computer. If the physical storage device larger than a disk maxima capacity, setting up a current disk according to a limit capacity value in the physical storage device. Setting all parameters of a logical disk parameter extend table of the current disk. The surplus capacity of the physical storage device divides to the plurality of fix disks, and setting all parameters of a logical disk parameter extend table of the fix disks. Repeating the said steps, until the surplus capacity of the physical storage device less than the disk maxima capacity.

Description

201104419 VI. Description of the Invention: [Technical Field of the Invention] A method for managing a capacity of a computer storage device, and more particularly to a method for capacity planning of a storage device and an access method thereof. [Prior Art] Due to the rapid development of technology, the periphery of computer devices has also grown. In particular, the capacity and volume of the storage device. In the past, the capacity of storage devices has evolved from Kilobyte's to now counted in Terabyte. In other words, the rate of change in the storage device has exceeded 10 million times. In order to manage the storage space of the storage device, the manufacturer of each storage device cooperates to define a specification of a Master Boot Master (MBR). The mbr is typically disposed in a first magnetic zone of the storage device to provide information associated with the computer device to identify the storage device. When the computer device is turned on, the basic input/output system (BI0S) will run a self-test (p〇wer 〇n Sdf Test). The BIOS uses POST to confirm whether the connected peripheral devices are normal. Then the BIOS will start to confirm the mbr of the storage device. The MBR of the 0th, 3rd, and 1st magnetic regions of the storage device is a magnetic space of 512 Bytes. The information stored in mbr can be divided into three parts: 'B〇〇t Partition Loader; BPL, or Pre-Loadei·, Pre-B〇〇t), and data area (Partiti〇n Data) ) and verification area (Verify

Data) ° The program area is stored in the range of OOOh to iBDh with a total area of 446 Bytes. 201104419 The program area is mainly responsible for loading the boot sector (B〇〇t Sector) of the operating system partition. Then, the computer device control is given to the boot sector, and the boot process of the operating system is continued. The data area is stored in the IBEh to lFDh range of 64 Bytes. In the 64 Bytes range, it can be divided into four areas for storing data in four hard disk partitions. This is why when planning a hard disk partition using a program such as Fdisk, you can only plan up to four main split magnetic regions (prima^ #Partiti〇n), or three main split magnetic regions and one extended split magnetic field. The reason for the Extended Partition. The verification area is stored in the 2 Bytes range of lFEh to IFFh. The verification area is marked with the string value of "5 ancestors", and it is verified whether the data of the entire magnetic domain range from 〇_ to 1FFh is the MBR magnetic area. Under the MBR specification, the computer device can only store 2 Terabytes (its calculation method is 446+64+2=512 Bytes, 512 = 2 Terabyte).

Set to access. Please refer to the "Figure 1", which is a schematic diagram of the disk parameter setting process of the prior art. The conventional technology includes the following steps: Step S110. Detect whether it is the last communication bus; Step measurement · If it is not the last-one-pass flow, it is dirty to detect whether there is a connected entity storage device in the communication bus; Step S131. Set a disk parameter extension table; Step sm. Set the disk number of the physical storage slot; Step S133. Modify the disk number value of the data area of BI〇s in the computer device; and 201104419 Step S134. Perform magnetic The disc identification program is used to determine the valley of the storage device, and repeats the step sm until all communication busbars are connected to the physical storage device connected thereto. If the physical storage device of more than 2 Terabyte is connected to the computer, the computer device cannot set the upper limit of the excess capacity of the physical bribe device, thereby affecting the access to the physical storage device::, ::: Can The computer device can access the physical storage device that exceeds the upper limit of the capacity. But for the manufacturer, replace m〇s 1 2 = cost. In addition to changing the BIOS, there must be a cooperation with the operating system. For the % job security secret, more than 2 Terabytes of physical storage I will still have problems with normal access. SUMMARY OF THE INVENTION In order to solve the above problems, the main object of the present invention is to provide a capacity regulation method for storage. The computer device is activated in the financial operation, and the device is connected to the 峨 峨 峨 峨 贞 贞 贞 贞 贞 大于 大于 大于 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四Less than the maximum outline capacity. In order to achieve the above objective, the capacity of the storage device disclosed in the present invention comprises the following steps: Step H: The amount of undivided amount of the maximum amount of disk volume in the gradual change; Step b. The undivided capacity of the storage device is greater than For the maximum disk capacity, the starting address specified by the J-word positioning heartmark is used as the reference to divide the current disk in the physical storage 201104419 device; Step C. Obtain the disk capacity setting value of the current disk.

Step d. The content of the FDpT extension table of the real memory device is _ the current scale FDPT extensi〇n table; step e. modify the parameter extension table towel _Disc number, the disk number of the disk parameter extension table after the change is recorded. The disk number in the extension table of the scale parameter is written; 4 f. Modify the data area of the BI〇s in the 5 丨 device. s D blood area number of disks; step g. performing a disk discriminating process (Ide scale c_and) for outputting a current disk of a disk capacity setting value in the physical storage device; h·When the capacity of the physical storage device is greater than the maximum disk capacity, the positioning is moved to the end of the cutting disk and steps a to h are repeated. After completing the physical storage device of Shun Cong's simplified flow, the present invention will handle the body of the device (4) and the actual (10) L 超过 whether it exceeds the maximum disk capacity side processing until the wire is all true - None, the present invention relies on a method for reading the capacity of the above-mentioned capacity planning disk capacity, in order to read out the correct capacity of the disk, the invention discloses a disk capacity reading method package disclosed in the present invention. 7 201104419 The following steps are included: judging whether there is a disk; and when there is a disk in the physical storage device, the function 48 of the bth interrupt vector is (10): called. _• Quantitative mosquito value modification data point of view, the ___ above the capacity planning of the access method, the age of the thorn to take the address. In order to achieve the above object, the data access method disclosed in the present invention includes the following method for judging whether or not there is a magnetic disk; and the function of modifying the lion disk input value to modify the 13th emotional direction when the magnetic disk is in the first place. , function 43, function 44 and function. The present invention provides a storage capacity capacity method, in the case of exceeding the maximum disk volume _ storage device towel to establish a plurality of _, to avoid the computer device can not use the ship maximum network capacity system Split capacity. ^Details of the details of the relevant _ characteristics and implementation, together with the diagram for the best real; see below. [Embodiment] As shown in the "Fig. 2", it is a schematic diagram of the system architecture of the present invention. In the present invention, a computer device 2ig and at least a physical storage device 220 are included. The computer device 21 has processing units 211, v communication bus 212 and configuration read only memory 213 (〇pti〇n R〇M). The communication buffer 212 is used to connect to the physical storage device 22, and the communication bus 212 is of the type IDE, SATA, SCSI, eSATA, USB, or IEEE 1394. Actual 201104419 The physical storage device 22 may be a single hard disk or a disk device composed of a Redundant Array of Independem Disks (Calette). The configuration read-only memory is stored in the capacity planning program 2 〖4. The configuration memory 213 can be set in the external interface card. For example, the external interface card can be a redundant disk array interface card or a SATA expansion card. In addition, the configuration read-only memory 213 can also be called in the motherboard, so that during the bribe (P0ST) process of the computer device 21, the processing unit 211 can be pre-configured only from the configuration.

The access capacity planning program in the item 6 memory 213 is called to perform the disk planning operation on the physical storage device 220. The foregoing invention may be applied to a single physical storage device 22 or may be implemented in a plurality of physical storage devices 22(). In the following, the operation of the capacity planning program 214 is performed by the physical storage device 22G of the single remittance===, and the operation of the multi-pour storage device is performed. The squama storage installation has the following steps: Step S3H) · Determine whether the total capacity in the selected physical storage device is greater than the maximum disk capacity; Step 2 (the total capacity of the storage device is greater than the maximum magnetic In the case of the disc capacity, the capacity regulation subroutine is performed to the physical storage device; and when the total capacity of the selected physical entity device is less than the maximum disk volume, the conventional physical disk is applied to the physical storage device. The parameter W program (refer to the conventional disk parameter setting program 201104419 is: step S131 to step S134).

First, the processing unit 211 determines whether the undivided capacity of the physical storage device 22 is greater than the maximum disk capacity (corresponding to step S31). In the present invention, the maximum disk capacity value is 2 Terabytes. Since at least one or more disks are divided in the physical storage device 22, the remaining undivided space is defined herein as the undivided capacity. In other words, the undivided capacity (?) in the physical storage device 22 in the present invention means that the total capacity of the real storage device 22G is deducted from the total capacity of all the disks (Disk-Size). After the difference (△ = Total_Size_ Disk, where η is the number of disks). For example, when there is no disk cut in a physical storage device having a capacity of 5 Terabytes, the undivided capacity of the physical storage device 220 is 5 . If there are two 2 Terabytes disks in the physical storage device 220, then the physical storage device 22_unsegmented capacity is 丨Teqing (3) (1)

5 2 2), at the same time § & "Figure 4", in the county physical storage device, 未, 未刀1# do not think. In the "figure 4", it is a physical storage device 220' in the physical storage device 22, which is further divided into two 2 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ capacity.

Next, it is judged whether or not the undivided capacity of the physical storage device (10) is greater than the maximum amount W (step S32G). When the undivided capacity of the needle storage device (10) is large, the volume of the physical storage is required to be volume-sized. The disk of the seeding plan 214 is defined, and the definition is J. 5 round", it is expected that the capacity planning of the present invention is called the intention. The capacity rule is more difficult to include the town step: 201104419 Step S321. * The total capacity of the physical storage device is greater than the initial address assignment of the undivided space of the maximum t entity storage - the pointer (pointer) ·, step sm The current __ escaping set value; step S323. The contents of the disk storage extension of the storage medium are copied to the logical disk parameter extension table of the current disk; Step S324. Modify _ _ number, and overwrite the disk number in the logical disk parameter extension table with the disk number of the modified disk parameter extension table; Step S325. Modify the disk number value of the dirty data area in the computer device; The bottle executes the __ program, and the rib plans a current disk whose size is the disk capacity setting value in the dragon storage device; step S327 determines whether the undivided space of the physical storage device is still greater than the maximum disk capacity; When the remaining capacity of the physical storage device is less than the maximum disk capacity, step S330 is repeatedly performed; and step S is when the remaining capacity of the physical storage device is greater than the maximum disk capacity, then the positioning indicator is moved to when After the end address of the disk apos step S321 to repeat step S329. = When there is no disk in the physical storage device, the starting address of the financial position indicator is used as the reference (the moving K of the positioning indicator will be detailed). Similarly, when the disk of the partition 201104419 already exists in the physical storage device 220, the start address of the undivided space is used as a reference. Then the processing unit one 211 will obtain the disk capacity setting value to be divided by the current disk. In the present invention, the determination of the disk capacity setting value can be input by the user to be - the system preset value. For example, if the user inputs the disk valley setting value by himself, 'can be presented on the screen surface before the capacity planning program 214 is executed--the display interface with the input block is received, so as to receive the input by the user. The disk volume setting. If the fixed disk capacity setting value is used as an example, when the operation volume=program 214 is executed, the processing unit 211 automatically sets the cutting capacity of the current disk to the _ capacity setting value, in other words, the disk capacity setting. The value _ is 2 Terabytes ° Then the 'processing unit 211 creates a logical disk parameter extension table to which the current disk belongs. The processing unit 211 then copies the contents of each field of the disk parameter extension table of the physical storage device 22 to the logical_parameter extension table, so that the content of the disk parameter extension table is consistent with the logical disk parameter extension table. . The main purpose of the disk parameter extension table is to record the relevant hardware parameters of the physical storage device 22〇. Among them, the hardware parameters include: input/output address (1/〇_ _ ad-), control port address (control port address), interrupt vector (IRQ), number of magnetic regions (failed count Directly 5 Dma information, PIO information, driver c〇unt, and Hardware specific option ° Mainly in step S324 The field is modified for the number of disks. Assume that a new disk is added every time the capacity planning program 214 is executed, so the block value of the number of disks is added (that is, the number of accumulated each time is "丨"). Similarly, if a '12 201104419 times increase the number of disks is n _, the county will accumulate n. After extending the number of disks in the table, the number of new magnetic monuments will be ||disk parameters. The number of discs is overwritten. The number of disks is the logical disk of the disk. After the copy of the logical disk parameter extension table is completed, the value of the disk number of the processing unit 211 ΒΙ=! In terms of _, there is no physical storage device 220 that is recognized for the newly planned disk == mos. Therefore, in order to allow the mail to be ordered, it is necessary to change the number of storage devices i. In the present invention, according to the disk parameter extension table, the number of disks (by the number of disks generated) plus "1" 'after' the accumulated value is written into the data = the number of magnetic f敝 coffee towels =, the value of the number of disks written in the deleted data area is ,, n+1, . . . , the disk discriminating program is executed by the processing unit 211. The disk of the pre-disk is taken according to step S322 2 The capacity setting value is in the physical storage device 22〇, the number of the magnetic field, the number of magnetic heads, the number of magnetic cylinders, the number of magnetic cylinders, and the number of the hard disk. After the end address of the current disk, the borrowing is used as the starting point of the capacity planning of the next disk. When the undivided space in the storage device 220 is still greater than the maximum disk capacity device 220 μ undivided space, step (10) ~ step = = s # 前前, until the axis storage device is not cut, the two rooms are smaller than the maximum disk capacity. Corresponding to step S33 〇 · · 乡 is the physical storage device 22 未 undivided space is less than 13 201104419 disk capacity, then The physical storage device (10) performs the conventional _ disc parameter set in the existing capacity planning program 2 After 14th, the program for correcting the disk start address is performed for the child storage device 220. Please refer to FIG. 6A for the flow chart of the capacity query correction program, and the capacity query correction program includes the following Steps: Step S610. Determining whether the physical storage device has a disk; Step 1 when the physical storage device has 剌, the function of the axis m interrupt vector is 48 [l〇h : 17h]; and the step stealing capacity The query program obtains the capacity of the disk to be queried through the modified nth interrupt vector. Because the thorn parameter extension table in the county entity storage device 22() has been modified. Therefore, if the physical storage device 22G is to be queried for its capacity, it is checked for correction. If the query is made to the physical storage device θ under uncorrected_, the BI0S will be _ to have multiple _s of the same capacity as the physical storage device 220. For example, the 5 Terabytes physical storage device 22g (which includes two 2 Terabytes and one! Terabytes disk) is shown in the example of "Diagram". When the entity storage device 22 〇=篁 queries with the uncorrected capacity query program, the BIOS will extend the number of disks stored according to the disk parameters of the physical storage device 22(), and the "Block 6B" The first disk - the starting address of the 612 is 612 from the starting address of the physical storage device 220. 5 Terabytes' first disk 611, second disk 612, and a 5 Terabytes of unused space '凊 reference to Figure 6C. Therefore, when the processing unit 211 detects the disk 611, 612 having the foregoing processing in the storage device 220 to be accessed, the processing unit 211 modifies the 13th interrupt vector (hereinafter referred to as INT 13). [function] 48 of [l〇h : I7h]. The function 48 of INT 13 is used to read the offset calculation in the number of sectors. The calculation of this offset is based on the disk capacity setting. In the function 48 of INT 13, there is also a description of the following parameters: cf. Tables 1 and 2 are the physical meanings of the parameters of the function 48 of JNT 13 and their offsets, respectively. Register AH """----- 48h = function number for extended_read_drive_parameters DL : ------------_ drive index (eg 1st HDD = 80h) DS:SI segment: Offset pointer to Result Buffer, see below Table 1. Parameter Buffer of function 48 of INT 13 offset range size —-—------ Description 00h..01h 2 bytes ------- -------· size of Result Buffer = 30 = 1 Eh 02h"03h 2 bytes ------------------- information flags —--^ 15 201104419 04h ..07h 4 bytes physical number of cylinders = last index + 1 (because index starts with 0) 08h..0Bh 4 bytes physical number of heads = last index + 1 (because index starts with 0) 0Ch..0Fh 4 bytes physical Number of sectors per track = last index (because index starts with 1) 10h..l7h 8 bytes absolute number of sectors = last index + 1 (because index starts with 0) 18h..l9h 2 bytes bytes per sector lAh..lDh 4 bytes optional pointer to Enhanced Disk Drive (EDD) configuration parameters which may be used for the after interrupt 13h Extension calls (if supported) Table 2. Each offset in function 48 of ΙΝΤ 13 After completing the modified capacity query procedure, processing unit 211 will query each disk in accordance with each disk in physical storage device 220. The start address begins to be queried, see "6D". In this way, it can be correctly judged as the unused space of the two 2 Terabytes disks 6n, 612 and 1 Terabytes. In addition to correcting the aforementioned identification of the disk capacity, it is also necessary to correct the access address. If the disk is accessed by a conventional access method, the starting address of the physical storage device 22G is used as a reference instead of the starting address of each disk claw and m. Benchmark (as shown in Figure 7A). The disk starting from the 201104419 initial address correction procedure includes the following steps, and please refer to "FIG. 7B": Step S710. Determine whether the physical storage device has a disk; Step sm when the physical storage device has a disk, Modifying the function 42, function 43, function 44 and function 47 of the INT 13 according to the disk capacity setting value; and executing the capacity reading program in step S730, obtaining the start of the disk to be accessed through the modified _13 Address. Scratchpad ^ AH . A _ 42h = function number for extended read DL drive index (eg 1st HDD = 80h) DS: SI segment: offset pointer to the DAP, see below Table 3. Parameter disk of function 42 of INT 13 DAP (Disk Address Packet) offset range size Description OOh 1 byte size of DAP = 16 = lOh Olh 1 byte unused, should be zero 02h 1 byte number of sectors to be read, 0..127 (= 7Fh) 17 201104419 03h 1 byte unused, should be zero 04h..07h 4 bytes segment: offset pointer to the memory buffer to which sectors will be transferred 08h..0Fh 8 bytes absolute number of the start of the sectors to be read (1st sector Of drive has number 〇) Table 4. Each offset in function 42 of ΙΝΤ 13 is corrected by the access address, and processing unit 211 is based on

7C" accesses data to the correct start address of each of the disks 711, 712.

Please refer to the "8th drawing", "8th drawing", "9th drawing", "9th drawing", "9C" and "9D", the following two pairs of physical storage devices 220 will be It is defined as a description of the volume planning of the disk by the first physical storage device 921 (having a capacity of 5 Terabytes) and the first physical storage device 922 (having a capacity of 3 Terabytes). Wherein 'the computer device 210 has a first communication gateway 91 and a second communication bus 912 and a third communication bus. The first communication bus 911 is connected to the first physical storage device 92, the second communication bus 912 is connected to the second physical storage device milk, and the third communication bus is not connected to any real storage device 22Q, and the maximum transfer capacity is It is 2 Terabytes, and the disk=quantity setting is also fixed to 2Terabyt^. It means that the operation flow of multiple entities is stored in 22〇, so the other is to explain it as a comment and please cooperate with the “Dragonfly” to store in the spicy entity. The operation process of the installation includes the following steps: 18 201104419 Step S810. Determine whether it is the last communication bus; Step S820. If it is not the last communication bus, select each of the connected physical storage devices of *, = The communication busting step S830 determines the selected physical storage device, the maximum disk capacity; whether the capacity is greater than the step measurement - when the total capacity of the selected physical storage device is greater than the maximum amount of the planning process, the storage is performed to the entity When the total capacity of the physical storage device selected by the step 6 is less than the maximum disk valley I, the entity is stored in the resident The number of setup. First, the disk of the first device, the metering device 210 performs the 911 in the P0ST, and the first physical storage device is connected. 921=The total capacity of the physical storage device exceeds the maximum disk capacity. (1) will be - The physical storage device 921 is in the second place=the first one physical storage device, and the process is referred to the “8B”, which includes the total capacity of the physical storage device in step S841. When the maximum disk capacity is greater than the initial address of the undivided space of the physical storage device, a positioning index is assigned; the capacity of the front disk is divided; and step S843=copying the content of the disk parameter extension table of the physical error device To the front of the S disk #杂麟 visit extension table; 201104419 step ancestor modify the disk number in the disk parameter extension table, and overwrite the logical disk parameter extension table with the disk number of the modified disk parameter extension table The disk number in the step; step S845. Modifying the disk number value of the data area of the BI〇S in the computer device; Step S846. Performing a disk discriminating process for planning a size of the disk in the physical storage|centering Capacity The current disk of the value; step S847 · the real device - the unbranched device is greater than the maximum disk capacity; step S848. When the remaining capacity of the physical storage device is less than the maximum disk capacity, then step S820 to step S850; And step S849. When the remaining capacity of the physical storage device is greater than the maximum disk capacity, then moving the positioning indicator to the end address of the current disk, and then repeating steps S841 to S849. Please refer to Figure 9A, which is a schematic diagram of capacity planning for each physical storage device. When the capacity storage program 2M is first performed, the first entity storage device 921 assigns the positioning index to the start address of the undivided space of the physical storage device and performs the capacity of the disk. To facilitate the difference of the respective disks, this disk is defined as the first disk 931. Then, the contents of the disk parameter extension table of the first physical storage device milk are copied to the logical disk parameter extension table of the first disk 931, and the disk number in the disk parameter extension table is modified. After this peak change, the disk parameter extension table_disc number overrides the disk number in the logical disk parameter extension table. Next, modify the disk number I value of the BI〇s data area 20 201104419 domain. Executing the disk discriminating program, after the first disk state step of the first physical storage device milk is set to the disk capacity setting value, the setting process of the first disk 931 is completed, please refer to "Chengdu" ^图"' is the first-disc schematic.

Because there is still 3 Terabytes of capacity in the first physical storage device 921, the second physical storage capacity of 2 qing is generated for the first physical storage device 921. Disc 93^β refers to "9C", which is a schematic diagram of the second disk. Since, there is only 1 Terabytes of space left in the first physical storage unit 921. Therefore, the processing unit 211 stops the processing of the first physical storage device 921. Regarding the 1 Terabytes of the first physical storage device, the computer device 21() can distinguish it. Therefore, the remaining 1 Terabytes of space does not require the above procedure. Next, the processing unit 211 detects the second physical storage device 922 on the second communication bus 912. Similarly, the unused volume in the second physical storage device 922 is greater than the maximum disk capacity. The processing unit 211 therefore performs a capacity planning procedure 214 on the second physical storage device 922 and generates a corresponding third disk 933. The unused space in the second physical storage device 922 is already less than the maximum disk capacity, so the capacity planning program 214 for the second physical storage device 922 ends. Please refer to the "9D map", which is the third disk. schematic diagram. Finally, the processing unit 211 detects the presence or absence of the connected physical storage device to the third communication bus 913. Since no physical storage device 220 is connected to the third communication bus 913, the processing unit 211 will end the capacity planning procedure. 21 201104419 Storage device 220 The present invention provides a capacity planning method for a storage device, which can establish a plurality of _ in the maximum disk capacity storage device, and the borrowing computer device 210 cannot use the maximum _ capacity _ remaining capacity. In this way, without having to change the hardware, the _ and the _ can be correctly accessed. Although the present invention is disclosed above, it is not intended to limit the present invention. Those skilled in the art will be able to make some changes without the scope and scope of the present invention. Therefore, the scope of the invention must be determined according to the definition of the patent application. [Simple Description of the Drawing] Fig. 1 is a schematic diagram showing the process of setting the disk parameters of the prior art. Figure 2 is a schematic diagram of the system architecture of the present invention. Figure 3 is a schematic diagram showing the operation of the present invention in a single physical storage device. Figure 4 is a schematic illustration of the magnetic disk and undivided capacity in the physical storage device of the present invention. ^ Figure 5 is a schematic diagram of the capacity schedule of the present invention. Fig. 6A is a schematic flow chart of the capacity inquiry correction program of the present invention. Figure 6B is a schematic diagram of a physical storage device with a disk of the present invention. Figure 6C is a schematic diagram of the erroneous disk capacity of the present invention. Fig. 6D is a schematic diagram of the corrected disk capacity of the present invention. Figure 7A is a schematic diagram of the unmodified program of the disk start address of the present invention. Fig. 7B is a flow chart showing the procedure of the magnetic start address correction procedure of the present invention. 22 201104419 The circular system is the (4) disk from the pure address corrected material. The figure is the schematic diagram of the operation process of the invention in the capacity planning device of the present invention. The drawings are schematic diagrams of various physical storage devices of the present invention. Figure 9 is a schematic view of the first disk of the present invention. Figure 9C is a schematic view of the second disk of the present invention. The figure is a schematic view of a third disk of the present invention. [Description of main component symbols] 210 Computer device 211 Processing unit 212 Communication bus 213 Configuration read-only memory 214 Capacity planning program 220 Physical storage device 411, 412 Disk 611 First disk 612 Second disk 711 First magnetic Disk 712 second disk 911 first communication bus 912 second communication bus 913 third communication bus 23 201104419 921 922 931 932 933 first physical storage device second physical storage device first disk second disk Three disks

twenty four

Claims (1)

201104419 VII. Patent application scope: 1. The capacity axis method of the rhyme storage device, when the computer device starts (10) (4), the capacity of the disk is performed on the κ briber device, and the capacity planning method includes: a • judging the Whether the total capacity of the physical storage I is greater than - the maximum disk capacity; b. when the total capacity of the physical storage device is greater than the maximum disk capacity, then & positioning points to the unused space of the physical storage device - starting address; c. taking a disk capacity setting value of a current disk; d. copying the real_counter _ _ parameter parameter extension (FDPT extension table) within the valley copy _ current disk - logical disk parameter extension table (logical FDPTextensiontable); :, e · modify the disk number in the disk parameter extension table, and overwrite the disk number according to the modified disk disk extension table The disk number in the logical disk parameter extension table; f. modify the number of disks in the data area of the basic input/output secret data area; g. execute a disk identification program (Identify Driver Command) Determining the disk capacity setting value of the current disk; and h. when the undivided space of the real axis device is greater than the maximum disk capacity, then moving the positioning indicator to the end address of the current disk And repeat steps a through h. 25 201104419 Step 2. If the request item is in the scale of the scale device _ before the other ·· In the step detection is the last communication bus; when broadcasting the last communication bus, then _ per-the communication疋 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接Delete the real one of the maximum magnetics. 3. The capacity planning method of the miscellaneous storage described in claim 1 has a disc capacity of 2 Terabytes. ""Number of magnetic zones. The capacity planning method of the storage device described in the claim item, wherein the magnetic word parameter extension table includes -_ capacity, - the number of impurities, - the number of heads, and 5. the capacity of the storage device according to the request item, The disk number in the disk parameter extension table is additionally included in the modification of the step e. The disk number of the disk parameter extension table is accumulated, and the magnetic quantity in the disk parameter extension table is modified by the accumulated result. Disc number. 6. A correction method for reading the storage device described in the item , , , , , , , , 读取 读取 读取 读取 读取 读取 读取 读取 读取 读取 读取 读取 读取 读取 读取 读取 读取 读取 读取 读取 读取 读取 读取 读取 读取 读取 读取Whether the device has the disk; and when the disk has the disk, the function 4k[1Qh: 17h] of the 13th interrupt vector is modified with the disk capacity setting value. 26 201104419 A method for modifying a storage device as claimed in claim 1, which uses the method of correcting the access mode of the physical storage device that completes the capacity planning, so that the correct bit_data is obtained in the storage device. The access correction method package determines whether the physical storage device has a Wei disc; and when the physical storage device has __ The amount set value is 13th shot to #_^ according to the thin disc valley and function 47. Heart-breaking function 仏 function 43, function 44 27