TWI396987B - Method for storing files in network attached storage and network attached storage using the method - Google Patents

Description

Method for storing files in a network storage device and network storage device using the same

The present invention relates to a method of storing files, and more particularly to a method of storing files in a network storage device.

In the online world, the UNIX operating system and the Windows operating system can exchange resources with each other through a software Samba that is structured on the NetBIOS (Network Basic Input/Output System) protocol when transferring files to each other.

For example, a computer using a Windows operating system uses a UNIX operating system (Linux) network storage device via a network connection, when both are equipped with Samba, and the computer wants to store the file through Samba to the network storage device. Samba will perform a pre-allocation action to search for a large enough storage space on the network storage device's hard drive to store the files so that the files are not scattered on the hard disk. The files are stored on the hard disk in a specific capacity or in a distributed manner, so that the file will have better performance when the file is read.

However, this pre-configuration action consumes the resources of the central processing unit (CPU) of the network storage device. If the hard disk of the network storage device itself does not have enough storage space, and the pre-configured action is still performed, It is undoubtedly an unnecessary burden on the CPU of the network storage device. Therefore, how to effectively use the pre-configured action will be a problem worthy of research and improvement.

Accordingly, it is an object of the present invention to provide a method of resiliently storing a file of a pre-configured action in a network storage device.

Therefore, the method for storing a file in a network storage device of the present invention is applied to a network storage device having a storage unit, the method comprising:

(A) when the network storage device stores a file, first perform a pre-configuration action to search the storage unit for a specific size storage space, and if so, store the file in the storage space, if not, proceed Step (B);

(B) accumulating the number of failures in a memory module of the network storage device, and determining whether the accumulated number of failures reaches a first predetermined number of times, and if so, stopping the pre-configuring action and directly storing the file in the storage unit. If no, proceed to step (C); and

(C) Re-execute the pre-configuration action to search whether the storage unit has a smaller storage space than the previous searched storage space, and if so, store the file in the secondary storage space, and if not, repeat step (B).

Another object of the present invention is to provide a network storage device using the above method.

Therefore, the network storage device of the present invention comprises an access interface, a storage unit, a control module, a memory module and a processing module. The access interface can receive files from the electronic device, and the storage unit stores the access. The file received by the interface, the control module performs a pre-configured action when the access interface receives a file to search for a specific size storage space in the storage unit, and the control module fails to perform the pre-configured action of storing the file. When the memory module accumulates the number of failures, the processing module determines whether the number of failures accumulated by the memory module reaches a first predetermined number of times. If so, the control module stops performing the pre-configured action and directly stores the file. The storage unit, if not, causes the control module to re-execute the pre-configured action to search for a secondary storage space that is smaller than the previously searched storage space.

The method of the present invention is that the method for storing a file in a network storage device can be applied to a network storage device, so that the pre-configured action of the network storage device before storing the file can be flexibly used, thereby controlling the network storage. The performance of the central processing unit of the device enables the network storage device to operate smoothly.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments of the invention.

Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIG. 1 , a first preferred embodiment of a method for storing a file in a network storage device according to the present invention is applied to a network storage device 2, and the network storage device 2 is connected to the electronic device 3 via a network and Samba is installed, and the network storage device 2 and the electronic device 3 can transmit files through Samba. In this embodiment, the method is implemented by a software program, which can be integrated into the Samba software, or Samba operates independently of each other. In this embodiment, the network storage device 2 is a NAS (Network Attached Storage) of a UNIX operating system (Linux), and may be another network server, and the electronic device 3 is a computer of the Windows operating system or other Internet connection. Electronic device.

Referring to FIG. 2, the network storage device 2 includes an access interface 21, a storage unit (in this embodiment, the hard disk 22 is taken as an example, but not limited thereto), and a central processing unit 23, the access interface 21 The hard disk 22 and the central processing unit 23 are coupled to each other. The access interface 21 is for receiving files from the electronic device 3 on the network, and the hard disk 22 includes a file capable of storing the file received by the access interface 21. The storage module 221 and a memory module 222, the central processing unit 23 includes a control module 231 and a processing module 233, and the functions of the above functional blocks will be further described below.

Referring to FIG. 2 and FIG. 3, when the electronic device 3 wants to transfer a file (for example, 9 GB) to the network storage device 2, first, the access interface 21 of the network storage device 2 receives the file, and then, as in step 901. As shown, since the operating system records the current usage rate of the central processing unit 23, the processing module 233 of the central processing unit 23 can read the current usage rate of the central processing unit 23 recorded by the operating system, and determine the central processing unit 23 Whether the usage rate reaches a preset value (for example, 80%), and if so, the processing module 233 causes the control module 231 to perform the pre-allocation action of the file received by the access interface 21 without Samba. The storage module 221 is directly stored in the hard disk 22, as in step 902. If not, the processing module 233 then determines whether the total number of failed pre-allocation actions in the memory module 222 reaches a second. The preset number of times, as in step 903, and the definition of the total number of failures, please explain later. If the total number of failures reaches the second preset value, the processing module 233 causes the control module 231 to store the file received by the access interface 21 directly on the hard disk 22 without performing a pre-allocation action by Samba. The storage module 221 is as shown in step 904. If the total number of failures does not reach the second preset value, step 905 is performed.

In step 905, the processing module 233 causes the control module 231 to execute Samba and perform a pre-allocation action to search the storage module 221 of the hard disk 22 for storing the file on the hard disk 22 without being distributed. The storage module 221 is larger than the storage size of the file (for example, 10 GB). Then, if the control module 231 performs the pre-configuration operation successfully, step 906 is executed, and the processing module 233 causes the control module 231 to store the file in the search. If the control module 231 fails to perform the pre-configuration operation, step 907 is executed, and the processing module 233 causes the memory module 222 to accumulate the number of failures. Then, after step 907, step 908 is performed. As shown in step 908, the processing module 233 first determines whether the number of failures accumulated by the memory module 222 reaches a first predetermined number of times. If so, the processing module 233 causes the control module to The group 231 stops performing the pre-allocation operation and stores the file received by the access interface 21 directly in the storage module 221 of the hard disk 22, as in step 909; if not, the processing unit 233 causes the control module 231 to execute the control module 231. The pre-configured action is re-executed to search whether the storage module 221 of the hard disk 22 has a smaller storage space (for example, 8 GB) than the previous searched storage space, as in step 910.

In step 910, if the control module 231 performs the pre-configuration operation successfully, as shown in step 911, the processing module 233 causes the control module 231 to store the file in the searched secondary storage space. The file size, so the file will be stored in a distributed manner, and the remaining part of the file will be searched for a suitable storage space in the storage module 221 of the hard disk 22 by the same method; if the control module 231 fails to perform the pre-configuration operation Step 907 will be re-executed until step 908 determines that the accumulated number of failures reaches the first predetermined number of times, or re-executes the pre-configured action of step 907 to search for a smaller secondary storage space. Then, whether step 909 or step 911 is performed, the process module 233 causes the memory module 222 to add the accumulated number of failures to the total number of failures, and the total number of failures refers to the network storage device 2 storing each time. The sum of the number of failed pre-allocation actions performed by a file. Finally, in step 913, the processing module 233 causes the memory module 222 to reset the number of failures to zero, that is, to complete the file storage operation. The first preset number of times, the second preset number of times, and the preset value may be completed by an internal program setting.

It should be noted that, in step 902, when the pre-allocation action is not performed by Samba, the control module 233 stores the file directly in the sporadic or scattered storage space of the storage module 221 of the hard disk 22. However, the processing module 233 will continue to determine the usage rate of the central processing unit 23. Once the usage rate is lower than the preset value, the processing module 233 will cause the control module 231 to suspend the storage of the file first, and step 903 is performed to determine whether Perform pre-allocation actions first, because if you can save files through pre-configured actions, then you will have better performance when reading or using files. In addition, since there is no relationship between the determining mechanism of step 901 and step 903, and step 902 is the same as step 904, step 903 may be performed first and then step 901 may be performed, and the sequence of execution may be adjusted according to actual application conditions.

It should be noted that when the central processing unit 23 of the network storage device 2 processes a lot of things at the same time (for example, performing the encryption and decryption function of transmitting and receiving files or having a plurality of electronic devices accessing files at the same time) and the usage rate is too high, Through the setting of step 901, in the storage of the file, the file is directly stored in the storage module 221 of the hard disk 22 without performing a pre-allocation action, so that the central processing unit 23 can reduce the burden. Operate without crashing due to excessive load.

Moreover, when the total number of failures accumulated by the memory module 222 is too large, there is not much space left in the storage module 221 representing the hard disk 22 or a small space in which the remaining space is fragmented. Performing the pre-configured action in front of each file will be useless, but will waste the resources of the central processing unit 23. Therefore, through the setting of step 903, the storage mode of the hard disk 22 can be interpreted by the total number of failures before performing the pre-configured action. If the total number of failures is too high, the status of the group 221 is not required to be pre-configured, and the file is directly stored in the storage module 221 of the hard disk 22 to reduce the burden on the central processing unit 23.

In addition, after the total number of failures reaches the second predetermined number of times, the method for storing the file in a network storage device of the present invention can be further performed in step 914 after step 904. As shown in step 914, the processing module 233 determines the hard Whether the storage module 221 of the disc 22 releases a storage space of a certain size, and if so, zeros the total number of failures. In this step, the processing module 233 determines whether a specific storage space is added to the storage module 221 of the hard disk 22. For example, the file in the storage module 221 of the hard disk 22 is deleted or the storage of the hard disk 22 is stored. The module 221 is reorganized by the disk to release the space. If so, the processing module 233 resets the total number of failures of the memory module 222 to zero, as in step 915, so that when there is a file to be stored in the storage module of the hard disk 22 At 221, the step of the embodiment of FIG. 3 can be started. If no, step 914 is repeated. The processing module 233 continues to determine whether a specific storage space is added to the storage module 221 of the hard disk 22. The specific storage space is set by the internal program according to the ratio of the release space to the remaining capacity of the storage module 221 of the hard disk 22. For example, when the processing module 233 determines that the release space exceeds the storage of the hard disk 22 If 20% of the remaining capacity of the module 221 is zero, the total number of failures is zeroed.

Referring to FIG. 4, a modified embodiment of the present embodiment, that is, the execution sequence of the adjustment step 903, the step 904, the step 914, and the step 915 can also achieve the same functions as described above, and the details are as follows. After the step 903 is adjusted to the step 912, if the processing unit 233 determines that the total number of failed executions of the pre-allocation action reaches the second preset number of times, the execution module 231 causes the subsequent received file storage to be executed. If the pre-configuration (pre-allocation) action is stopped, the subsequently received file is directly stored in the storage module 221 of the hard disk 22, as in step 916, and step 913 is performed; if the second preset number of times is not reached, Then proceed to step 913. In addition, after step 916 is performed, step 914 and step 915 are performed, and as described above, the total number of failures is zeroed, and a pre-allocation action can be initiated, and thus, after the adjustment of the steps, the same can be achieved. The above effects.

Referring to FIG. 5, a second preferred embodiment of a method for storing a file in a network storage device according to the present invention is applied to a network storage device 2, and the network storage device 2 and a plurality of electronic devices 3 borrow a network. Samba is connected and installed, and the network storage device 2 and the plurality of electronic devices 3 can transmit files through Samba. The method for storing files in a network storage device in this embodiment is implemented by a software program, and the software program can be implemented. Integrated into Samba software, it can also operate independently of Samba. In this embodiment, the network storage device 2 and the plurality of electronic devices 3 can be configured to form a regional network architecture, so that the electronic device 3 shares the resources and storage capacity of the network storage device 2.

When each electronic device 3 wants to store a file to the network storage device 2, the same step as the first preferred embodiment of FIG. 3 is performed to determine whether to perform a pre-allocation action, and the second comparison is performed. The difference between the preferred embodiment and the first preferred embodiment is that the network storage device 2 is provided with a mutual exclusion mechanism, that is, the processing module 233 can prevent the total number of write failures of the plurality of electronic devices 3 in the memory module 222 at the same time. The case where the total number of failures is erroneous occurs, and the remaining flow steps are the same as in the first preferred embodiment.

In summary, the method for storing a file in a network storage device of the present invention can be applied to the network storage device 2, so that the pre-configured action of the network storage device 2 before the file is stored can be used efficiently and flexibly. This control of the performance of the central processing unit 23 of the network storage device 2 enables the network storage device 2 to operate smoothly, so that the object of the present invention can be achieved.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

2. . . Network storage device

twenty one. . . Access interface

twenty two. . . Hard disk

221. . . Storage module

222. . . Memory module

twenty three. . . Central processing unit

231. . . Control module

233. . . Processing module

3. . . Electronic device

901~916. . . step

1 is a schematic diagram showing a method for storing a file in a network storage device of the present invention applied between a network storage device and an electronic device;

2 is a block diagram showing the internal hardware architecture of the network storage device;

3 is a flow chart illustrating a method of storing a file in a network storage device of the present invention;

4 is a flow chart illustrating another method of storing a file in a network storage device; and

FIG. 5 is a schematic diagram showing the method of storing a file in a network storage device of the present invention applied between a network storage device and a plurality of electronic devices.

901~915. . . step

Claims (12)

A method for storing a file in a network storage device is applied to a network storage device having a storage unit, the method comprising: (A) performing a pre-configured action on the network storage device when storing a file, Searching for the storage unit for a specific size of storage space, and if so, storing the file in the storage space; if not, proceeding to step (B); (B) a memory module of the network storage device The number of failures is accumulated, and it is determined whether the cumulative number of failures reaches a first predetermined number of times, and if so, the execution of the pre-configured action is stopped and the file is directly stored in the storage unit, and if not, step (C) is performed; And (C) re-executing the pre-configured action to search whether the storage unit has a smaller storage space than the previous searched storage space, and if so, storing the file in the storage space, and if not, repeating the step ( B). The method for storing a file in a network storage device according to claim 1 is further included in step (B), adding the total number of failures stored in the file to a total number of failures, the total number of failures being The number of failures of each pre-configured action for each file is accumulated. The method for storing a file in a network storage device according to the second aspect of the patent application includes, before the step (A), determining whether the total number of failed failures reaches a second predetermined number of times, and if so, The network storage device directly stores the file in the storage unit, and if not, proceeds to step (A). The method for storing a file in a network storage device according to claim 3, further comprising determining whether the storage unit releases a certain size of storage after the total number of failures reaches the second predetermined number of times Space, if it is, zero the total number of failures. The method for storing a file in a network storage device according to the scope of claim 1 further includes determining whether the usage rate of a central processing unit of the network storage device reaches a pre-determination before the step (A) The value is set, and if so, the network storage device directly stores the file in the storage unit, and if not, proceeds to step (A). The method for storing a file in a network storage device according to claim 2, further comprising: determining whether the total number of failed failures after the step (C) reaches a second predetermined number of times, and if so, The network storage device stores the files received later in the storage unit directly. A network storage device is adapted to connect at least one electronic device through a network, the network storage device comprising: an access interface capable of receiving files from the electronic device; and a storage unit storing the received by the access interface a control module, when the access interface receives a file, performs a pre-configured action to search for a specific size storage space in the storage unit; a memory module, when the control module performs storage When the pre-configure action of the file fails, the memory module accumulates the number of failures; and a processing module determines whether the number of failures accumulated by the memory module reaches a first predetermined number of times, and if so, the control is performed. The module stops executing the pre-configured action and directly stores the file in the storage unit. If not, the control module re-executes the pre-configured action to search for a secondary storage space that is smaller than the storage space of the previous search. According to the network storage device of claim 7, wherein the processing module causes the memory module to add the accumulated number of failures to the total number of failures to accumulate each time when the control module finishes executing the storage of the file. The number of failures of a file to perform this pre-configured action. According to the network storage device of claim 8, wherein the processing module determines whether the total number of failures reaches a second predetermined number of times before storing the file, and if so, causes the control module to make The file is stored directly in the storage unit. According to the network storage device of claim 9, wherein, when the total number of failures reaches the second predetermined number of times, the processing module determines whether the storage unit increases a storage space of a certain size, and if so, Then the control module re-executes the pre-configured action. The network storage device of claim 7, wherein the processing module and the control module are implemented by a central processing unit, and the processing module determines the central processing unit before storing the file. Whether the usage rate reaches a preset value, and if so, causes the control module to stop performing the pre-configured action and store the file directly in the storage unit. According to the network storage device of claim 8, wherein after the file is stored, the processing module determines whether the total number of failures reaches a second predetermined number of times, and if so, causes the control module to The received file is then stored directly in the storage unit.