CN102360337A - Method for using hard disk according to quota on digital video recorder and device thereof - Google Patents
Method for using hard disk according to quota on digital video recorder and device thereof Download PDFInfo
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- CN102360337A CN102360337A CN2011103142903A CN201110314290A CN102360337A CN 102360337 A CN102360337 A CN 102360337A CN 2011103142903 A CN2011103142903 A CN 2011103142903A CN 201110314290 A CN201110314290 A CN 201110314290A CN 102360337 A CN102360337 A CN 102360337A
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Abstract
The invention relates to the technology of audio/video storage and discloses a method for using a hard disk according to quota on a digital video recorder and a device thereof. In the invention, a quota of an available storage space is preassigned to each channel, when a channel quota is reduced and the hard disk has an undistributed surplus storage space, the digital video recorder does not immediately recover a storage space excessively used by the channel, and after the storage space used by the channel reaches the quota, the channel can not obtain a new storage space, so that storage resources on the digital video recorder can be more reasonably distributed, the available storage space of each channel is directly controlled, the validity of each channel video on the digital video recorder is improved, and the use is more convenient.
Description
Technical field
The present invention relates to the audio frequency and video memory technology, particularly use the technology of hard disk on the digital hard disc video recorder by quota.
Background technology
Disk Quotas is exactly that the keeper can carry out quota restrictions for the employable disk space of user, and each user can only use the disk space in the maximum quota limit.After Disk Quotas is set, can follows the tracks of and control, can identify user through monitoring, thereby take appropriate measures above quota alarm threshold value and quota restrictions to each user's disk operating position.Providing of Disk Quotas management function; Make the keeper can be user's memory allocated resource convenient and reasonablely; Can limit the disk space that designated user can use, can avoid excessive use disk space because of certain user to cause other users can't operate as normal like this, even influence system's operation; Avoid the system crash that possibly cause out of control, the security that has improved system owing to the disk space use.
In application number was 201010118459.3 Chinese patent, the dynamic allocation method of user disk quota in a kind of distributed memory system was disclosed.Technical scheme is to make up the distributed memory system that also initialization is made up of meta data server and storage server; The memory access request that storage server receives then increases the subscriber's local Disk Quotas when being the storage data; Carry out the storage of subscriber data operation again; If the memory access request type is that deleted data is then carried out the user data deletion action; The subscriber's local Disk Quotas is set to subscriber's local disk space occupancy, calculates the increment of subscriber's local disk space occupancy and this increment is sent to meta data server; Meta data server calculates new user disk quota remaining sum and this remaining sum is sent to all storage servers.
Digital hard disc video recorder (Digital Video Recorder, be called for short " DVR "), it is the computer system that a cover carries out the image stores processor, have to image or voice record a video for a long time, the function of recording, telemonitoring and control.
Passage: the another name that is meant certain camera that inserts on the digital hard disc video recorder.
In DVR, also do not have at present the concrete application of Disk Quotas technology, disk fails to obtain fully effectively to use.
Summary of the invention
The object of the present invention is to provide on a kind of digital hard disc video recorder the method and the device thereof that use hard disk by quota; The storage resources on the distribute digital DVR more reasonably; Directly control the operable storage space of each passage; Improved the validity of each passage video recording on the digital hard disc video recorder, used convenient.
For solving the problems of the technologies described above, embodiment of the present invention discloses on a kind of digital hard disc video recorder the method for using hard disk by quota, may further comprise the steps:
Before the startup passage is recorded a video, specify the quota of operable storage space for each passage;
When the quota of passage was modified to less than the actual storage space that takies of this passage, this passage kept the actual storage space that takies as the passage that exceeds the quata, comprising the above-quota space that exceeds the quata;
When passage application storage space; Judge whether hard disk exists unappropriated storage space; If then be this channel allocation storage space from unappropriated storage space; Otherwise from the space that exceeds the quata, be this channel allocation storage space, and revise this corresponding actual storage space that takies of the passage that exceeds the quata in space that exceeds the quata.
Embodiment of the present invention also discloses on a kind of digital hard disc video recorder the device that uses hard disk by quota, comprising:
The quota of operable storage space before being used to start passage and recording a video, is specified in the allocation of quota unit for each passage; When the quota of passage was revised as less than the actual storage space that takies of this passage by said allocation of quota unit, this passage kept the actual storage space that takies as the passage that exceeds the quata, comprising the above-quota space that exceeds the quata;
First judging unit is used for when passage application storage space, judging whether hard disk exists unappropriated storage space;
First storage space allocation unit is used for when said first judging unit, judges when there is unappropriated storage space in hard disk, and then from unappropriated storage space this channel allocation storage space;
Second storage space allocation unit; Be used for when said first judging unit; Judge when there is not unappropriated storage space in hard disk, then from the said space that exceeds the quata, be this channel allocation storage space, and revise this corresponding actual storage space that takies of the passage that exceeds the quata in space that exceeds the quata.
Embodiment of the present invention compared with prior art, the key distinction and effect thereof are:
Specify the quota of operable storage space in advance for each passage; When the passage quota reduced, when hard disk also had remaining storage space unallocated, digital hard disc video recorder can not reclaim the exceeded the quata storage space that uses of this passage immediately; This space that exceeds the quata passage that still can supply to exceed the quata uses; When remaining storage space exhausts, just be recovered, thereby the data in the space that exceeds the quata that the passage that exceeds the quata is stored in should be recovered still can be by normal access in a period of time, storage space can be fully utilized; The storage resources on the distribute digital DVR more reasonably; Directly the operable storage space of each passage of control has improved the validity that each passage is recorded a video on the digital hard disc video recorder, uses convenient.
Further, after the storage space of passage use reached quota, this passage can not obtain new storage space, can avoid certain passage excessively to use storage space like this, causes the problem of waste of storage space.
Further, each passage is provided with priority in advance, when recovery exceeds the quata the space, considers priority, can guarantee the validity of each passage video recording on the digital hard disc video recorder, utilizes storage space more rationally and effectively.
Further, total quota can supply the total volume of the storage space of each passage use greater than digital hard disc video recorder, can effectively utilize the storage space of digital hard disc video recorder so more.
Description of drawings
Fig. 1 is the schematic flow sheet that uses the method for hard disk in the first embodiment of the invention on a kind of digital hard disc video recorder by quota;
Fig. 2 is the synoptic diagram of specifying the quota of operable storage space in advance for each passage;
Fig. 3 is the structural representation that uses the device of hard disk in the fifth embodiment of the invention on a kind of digital hard disc video recorder by quota;
Fig. 4 is the structural representation that uses the device of hard disk in the sixth embodiment of the invention on a kind of digital hard disc video recorder by quota.
Embodiment
In following narration, many ins and outs have been proposed in order to make the reader understand the application better.But, persons of ordinary skill in the art may appreciate that even without these ins and outs with based on the many variations and the modification of following each embodiment, also can realize each claim of the application technical scheme required for protection.
For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing that embodiment of the present invention is done to describe in detail further below.
First embodiment of the invention relates on a kind of digital hard disc video recorder the method for using hard disk by quota.Fig. 1 is the schematic flow sheet that uses the method for hard disk on this digital hard disc video recorder by quota.
Specifically, as shown in Figure 1, use the method for hard disk mainly to may further comprise the steps by quota on this digital hard disc video recorder:
In step 101, specify the quota of operable storage space for each passage.
Before the startup passage is recorded a video, specify the quota of operable storage space for each passage.
Quota is meant that the storage space that on digital hard disc video recorder, each passage is used carries out the size restriction, and each passage can only use the storage space in the maximum quota limit.
After this get into step 102, passage n applies for storage space.
After this get into step 103, judge that whether storage space that passage n takies is less than preset quota.
If then get into step 104; If not, then get into step 109.
Whether judge the actual storage space that takies of this passage less than quota,, otherwise refuse the application requirement of this passage if then carry out to judge whether hard disk exists the step of unappropriated storage space.
After the storage space of passage use reached quota, this passage can not obtain new storage space, can avoid certain passage excessively to use storage space like this, causes the problem of waste of storage space.
In step 104, judge whether the DVR hard disk exists unappropriated storage space.
If then get into step 108; If not, then get into step 105.
When passage application storage space; Judge whether hard disk exists unappropriated storage space; If then be this channel allocation storage space from unappropriated storage space; Otherwise from the space that exceeds the quata, be this channel allocation storage space, and revise this corresponding actual storage space that takies of the passage that exceeds the quata in space that exceeds the quata.
In step 105, judge whether to exist the passage that exceeds the quata.
When the quota of passage was modified to less than the actual storage space that takies of this passage, this passage kept the actual storage space that takies as the passage that exceeds the quata, comprising the above-quota space that exceeds the quata.
If then get into step 106; If not, then get into step 109.
In step 106, from the space that exceeds the quata, be passage n memory allocated space, and revise the actual occupation space value of passage that exceeds the quata.
After this get into step 107, the success of passage n application storage space, more the storage space value that takies of new tunnel n.
After this process ends.
In step 108, from unappropriated storage space passage n memory allocated space.
After this get into step 107.
In step 109, passage n application space failure continues to use the storage space that has occupied.
After this process ends.
Specify the quota of operable storage space in advance for each passage; When the passage quota reduced, when hard disk also had remaining storage space unallocated, digital hard disc video recorder can not reclaim the exceeded the quata storage space that uses of this passage immediately; This space that exceeds the quata passage that still can supply to exceed the quata uses; When remaining storage space exhausts, just be recovered, thereby the data in the space that exceeds the quata that the passage that exceeds the quata is stored in should be recovered still can be by normal access in a period of time, storage space can be fully utilized; The storage resources on the distribute digital DVR more reasonably; Directly the operable storage space of each passage of control has improved the validity that each passage is recorded a video on the digital hard disc video recorder, uses convenient.
Second embodiment of the invention relates on a kind of digital hard disc video recorder the method for using hard disk by quota.
Second embodiment improves on the basis of first embodiment; Main improvements are: each passage is provided with priority in advance;, recovery considers priority when exceeding the quata the space; Can guarantee the validity of each passage video recording on the digital hard disc video recorder, utilize storage space more rationally and effectively.
Specifically:
Each passage is provided with priority in advance.
From the space that exceeds the quata, for this channel allocation storage space, and revise this step that exceeds the quata the corresponding actual storage space that takies of the passage that exceeds the quata in space and comprise following substep:
Judge whether to exist the passage that exceeds the quata.
If there are a plurality of passages that exceed the quata, then from the space that exceeds the quata of the minimum passage that exceeds the quata of priority, be this channel allocation storage space.
If have only the passage that exceeds the quata, then from this passage that exceeds the quata, be this channel allocation storage space.
If do not exceed the quata passage, then this passage application space failure, this passage continues to use original actual storage space that takies.
In addition, be appreciated that in some other embodiment of the present invention that also can for each passage priority be set in advance, the priority of each passage is identical, when needing, reclaim the space that exceeds the quata of the passage that respectively exceeds the quata at random.
Third embodiment of the invention relates on a kind of digital hard disc video recorder the method for using hard disk by quota.
The 3rd embodiment improves on the basis of second embodiment; Main improvements are: total quota can supply the total volume of the storage space of each passage use greater than digital hard disc video recorder, can effectively utilize the storage space of digital hard disc video recorder so more.
In addition, be appreciated that in some other embodiment of the present invention that the quota sum of each passage also can be less than or equal to the total volume that digital hard disc video recorder can supply the storage space of each passage use.
Four embodiment of the invention relates on a kind of digital hard disc video recorder the method for using hard disk by quota.
The 4th embodiment improves on the basis of the 3rd embodiment, and main improvements are: can supply the total volume of the storage space of each passage use is the total volume of a plurality of hard disks.
The present invention treats as an integral body with hard disks all in the digital hard disc video recorder; The user needs at first system space to be divided, both the operable maximum memory space value of dedicated tunnel when using the quota function; As shown in Figure 2, be the situation after the configuration completion.
Each method embodiment of the present invention all can be realized with modes such as software, hardware, firmwares.No matter the present invention be with software, hardware, or the firmware mode realize; Instruction code can be stored in the storer of computer-accessible of any kind (for example permanent or revisable; Volatibility or non-volatile; Solid-state or non-solid-state, fixing perhaps removable medium or the like).Equally; Storer can for example be programmable logic array (Programmable Array Logic; Abbreviation " PAL "), RAS (Random Access Memory; Abbreviation " RAM "), programmable read only memory (Programmable Read Only Memory is called for short " PROM "), ROM (read-only memory) (Read-Only Memory is called for short " ROM "), Electrically Erasable Read Only Memory (Electrically Erasable Programmable ROM; Abbreviation " EEPROM "), disk, CD, digital versatile disc (Digital Versatile Disc is called for short " DVD ") or the like.
Fifth embodiment of the invention relates on a kind of digital hard disc video recorder the device that uses hard disk by quota.Fig. 3 is the structural representation that uses the device of hard disk on this digital hard disc video recorder by quota.
Specifically, as shown in Figure 3, use the device of hard disk mainly to comprise by quota on this digital hard disc video recorder:
The quota of operable storage space before being used to start passage and recording a video, is specified in the allocation of quota unit for each passage; When the quota of passage was revised as less than the actual storage space that takies of this passage by said allocation of quota unit, this passage kept the actual storage space that takies as the passage that exceeds the quata, comprising the above-quota space that exceeds the quata;
First judging unit is used for when passage application storage space, judging whether hard disk exists unappropriated storage space;
First storage space allocation unit is used for when said first judging unit, judges when there is unappropriated storage space in hard disk, and then from unappropriated storage space this channel allocation storage space;
Second storage space allocation unit; Be used for when said first judging unit; Judge when there is not unappropriated storage space in hard disk, then from the said space that exceeds the quata, be this channel allocation storage space, and revise this corresponding actual storage space that takies of the passage that exceeds the quata in space that exceeds the quata.
Second judging unit; Be used for when passage application storage space; Whether judge the actual storage space that takies of this passage less than quota,, otherwise refuse the application requirement of this passage if then indicate the said first judgment unit judges hard disk whether to have unappropriated storage space.
First embodiment is and the corresponding method embodiment of this embodiment, this embodiment can with the enforcement of working in coordination of first embodiment.The correlation technique details of mentioning in first embodiment is still effective in this embodiment, in order to reduce repetition, repeats no more here.Correspondingly, the correlation technique details of mentioning in this embodiment also can be applicable in first embodiment.
Sixth embodiment of the invention relates on a kind of digital hard disc video recorder the device that uses hard disk by quota.Fig. 4 is the structural representation that uses the device of hard disk on this digital hard disc video recorder by quota.
The 6th embodiment improves on the basis of the 5th embodiment, and main improvements are:
Each passage is provided with priority in advance, in second storage space allocation unit, also comprises following subelement:
Judgment sub-unit is used to judge whether exist the passage that exceeds the quata;
The memory allocation subelement is used for judging when said judgment sub-unit existing a plurality of exceeding the quata from the space that exceeds the quata of the minimum passage that exceeds the quata of priority, to be this channel allocation storage space during passage; When said judgment sub-unit, judge when having only one to exceed the quata passage, from this passage that exceeds the quata, be this channel allocation storage space; When said judgment sub-unit, judge when not exceeding the quata passage, then this passage application space failure, this passage continues to use original actual storage space that takies.
Second embodiment is and the corresponding method embodiment of this embodiment, this embodiment can with the enforcement of working in coordination of second embodiment.The correlation technique details of mentioning in second embodiment is still effective in this embodiment, in order to reduce repetition, repeats no more here.Correspondingly, the correlation technique details of mentioning in this embodiment also can be applicable in second embodiment.
Seventh embodiment of the invention relates on a kind of digital hard disc video recorder the device that uses hard disk by quota.
The 7th embodiment improves on the basis of the 6th embodiment, and main improvements are:
The quota sum of each passage can supply the total volume of the storage space of each passage use greater than digital hard disc video recorder.
The 3rd embodiment is and the corresponding method embodiment of this embodiment, this embodiment can with the enforcement of working in coordination of the 3rd embodiment.The correlation technique details of mentioning in the 3rd embodiment is still effective in this embodiment, in order to reduce repetition, repeats no more here.Correspondingly, the correlation technique details of mentioning in this embodiment also can be applicable in the 3rd embodiment.
Eighth embodiment of the invention relates on a kind of digital hard disc video recorder the device that uses hard disk by quota.
The 8th embodiment improves on the basis of the 7th embodiment, and main improvements are:
Can supply the total volume of the storage space of each passage use is the total volume of a plurality of hard disks.
The 4th embodiment is and the corresponding method embodiment of this embodiment, this embodiment can with the enforcement of working in coordination of the 4th embodiment.The correlation technique details of mentioning in the 4th embodiment is still effective in this embodiment, in order to reduce repetition, repeats no more here.Correspondingly, the correlation technique details of mentioning in this embodiment also can be applicable in the 4th embodiment.
Need to prove; Each unit of mentioning in each device embodiments of the present invention all is a logical block, and physically, a logical block can be a physical location; It also can be the part of a physical location; Can also realize that the physics realization mode of these logical blocks itself is not most important with the combination of a plurality of physical locations, the combination of the function that these logical blocks realized is the key that just solves technical matters proposed by the invention.In addition, for outstanding innovation part of the present invention, above-mentioned each device embodiments of the present invention will not introduced with solving the not too close unit of technical matters relation proposed by the invention, and this does not show that there is not other unit in the said apparatus embodiment.
Though through reference some preferred implementation of the present invention; The present invention is illustrated and describes; But those of ordinary skill in the art should be understood that and can do various changes to it in form with on the details, and without departing from the spirit and scope of the present invention.
Claims (10)
1. press the method that quota is used hard disk on a digital hard disc video recorder, it is characterized in that, may further comprise the steps:
Before the startup passage is recorded a video, specify the quota of operable storage space for each passage;
When the quota of passage was modified to less than the actual storage space that takies of this passage, this passage kept the actual storage space that takies as the passage that exceeds the quata, comprising the above-quota space that exceeds the quata;
When passage application storage space; Judge whether hard disk exists unappropriated storage space; If then be this channel allocation storage space from unappropriated storage space; Otherwise from the said space that exceeds the quata, be this channel allocation storage space, and revise this corresponding actual storage space that takies of the passage that exceeds the quata in space that exceeds the quata.
2. use the method for hard disk on the digital hard disc video recorder according to claim 1 by quota, it is characterized in that, when passage application storage space, said judge whether hard disk exists the step of unappropriated storage space before, further comprising the steps of:
Whether judge the actual storage space that takies of this passage less than quota,, otherwise refuse the application requirement of this passage if then carry out saidly judge whether hard disk exists the step of unappropriated storage space.
3. by the method for quota use hard disk, it is characterized in that each passage is provided with priority in advance on the digital hard disc video recorder according to claim 1;
Said from the space that exceeds the quata for this channel allocation storage space, and revise this step that exceeds the quata the corresponding actual storage space that takies of the passage that exceeds the quata in space and comprise following substep:
Judge whether to exist the passage that exceeds the quata;
If there are a plurality of passages that exceed the quata, then from the space that exceeds the quata of the minimum passage that exceeds the quata of priority, be this channel allocation storage space;
If have only the passage that exceeds the quata, then from this passage that exceeds the quata, be this channel allocation storage space;
If do not exceed the quata passage, then this passage application space failure, this passage continues to use original actual storage space that takies.
4. according to pressing the method that quota is used hard disk on each described digital hard disc video recorder in the claim 1 to 3, it is characterized in that the quota sum of each passage can supply the total volume of the storage space of each passage use greater than digital hard disc video recorder.
5. use the method for hard disk on the digital hard disc video recorder according to claim 4 by quota, it is characterized in that, said to supply the total volume of the storage space that each passage uses be the total volume of a plurality of hard disks.
6. press the device that quota is used hard disk on a digital hard disc video recorder, it is characterized in that, comprising:
The quota of operable storage space before being used to start passage and recording a video, is specified in the allocation of quota unit for each passage; When the quota of passage was revised as less than the actual storage space that takies of this passage by said allocation of quota unit, this passage kept the actual storage space that takies as the passage that exceeds the quata, comprising the above-quota space that exceeds the quata;
First judging unit is used for when passage application storage space, judging whether hard disk exists unappropriated storage space;
First storage space allocation unit is used for when said first judging unit, judges when there is unappropriated storage space in hard disk, and then from unappropriated storage space this channel allocation storage space;
Second storage space allocation unit; Be used for when said first judging unit; Judge when there is not unappropriated storage space in hard disk, then from the said space that exceeds the quata, be this channel allocation storage space, and revise this corresponding actual storage space that takies of the passage that exceeds the quata in space that exceeds the quata.
7. by the device of quota use hard disk, it is characterized in that on the digital hard disc video recorder according to claim 6, also comprise:
Second judging unit; Be used for when passage application storage space; Whether judge the actual storage space that takies of this passage less than quota,, otherwise refuse the application requirement of this passage if then indicate the said first judgment unit judges hard disk whether to have unappropriated storage space.
8. by the device of quota use hard disk, it is characterized in that each passage is provided with priority in advance on the digital hard disc video recorder according to claim 6, in said second storage space allocation unit, also comprise following subelement:
Judgment sub-unit is used to judge whether exist the passage that exceeds the quata;
The memory allocation subelement is used for judging when said judgment sub-unit existing a plurality of exceeding the quata from the space that exceeds the quata of the minimum passage that exceeds the quata of priority, to be this channel allocation storage space during passage; When said judgment sub-unit, judge when having only one to exceed the quata passage, from this passage that exceeds the quata, be this channel allocation storage space; When said judgment sub-unit, judge when not exceeding the quata passage, then this passage application space failure, this passage continues to use original actual storage space that takies.
9. according to pressing the device that quota is used hard disk on each described digital hard disc video recorder in the claim 6 to 8, it is characterized in that the quota sum of each passage can supply the total volume of the storage space of each passage use greater than digital hard disc video recorder.
10. use the device of hard disk on the digital hard disc video recorder according to claim 9 by quota, it is characterized in that, said to supply the total volume of the storage space that each passage uses be the total volume of a plurality of hard disks.
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| CN102360337B (en) | 2014-10-15 |
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