CN110058818A - A kind of method and its system based on SSD optimization descriptor processing sequence - Google Patents
A kind of method and its system based on SSD optimization descriptor processing sequence Download PDFInfo
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- CN110058818A CN110058818A CN201910312128.4A CN201910312128A CN110058818A CN 110058818 A CN110058818 A CN 110058818A CN 201910312128 A CN201910312128 A CN 201910312128A CN 110058818 A CN110058818 A CN 110058818A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/061—Improving I/O performance
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/0614—Improving the reliability of storage systems
- G06F3/0619—Improving the reliability of storage systems in relation to data integrity, e.g. data losses, bit errors
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/062—Securing storage systems
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0655—Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices
- G06F3/0659—Command handling arrangements, e.g. command buffers, queues, command scheduling
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/0671—In-line storage system
- G06F3/0673—Single storage device
- G06F3/0679—Non-volatile semiconductor memory device, e.g. flash memory, one time programmable memory [OTP]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
Abstract
The present invention relates to a kind of methods and its system based on SSD optimization descriptor processing sequence；Wherein, method, comprising: S1 judges whether there is anomalous event triggering and interrupts；S2 issues the corresponding descriptor of abnormality processing, and is labeled as high priority descriptor；S3, judgement issue the descriptor for whether having priority to mark in descriptor；The channel S4, NFC sequentially issues descriptor；S5, judges whether the channel CDMA is in idle condition；S6 waits the channel CDMA idle；The channel S7, CDMA issues descriptor and sequentially executes descriptor to NAND, NAND；S8, resets the channel CDMA, and the green channel of NFC preferentially issues priority flag descriptor；The channel S9, CDMA issues the descriptor that priority flag descriptor has priority to mark to NAND, NAND execution.To there is the present invention the preferential descriptor for executing label preferentially to execute from green channel, and effectively improve descriptor executes sequence, reduces the deadline of the descriptor of execution, improves the safety and stability of SSD.
Description
Technical field
The present invention relates to solid state hard disks to optimize descriptor technical field, more specifically refers to that a kind of optimized based on SSD is retouched
State the method and its system of symbol processing sequence.
Background technique
Each CE in the existing channel NFC corresponds to a channel CDMA, and when issuing descriptor, NFC can press descriptor
Sequence is issued to the channel NFC, and the corresponding channel CDMA is bound in each channel NFC, once channel has issued descriptor, the channel CDMA
It cannot be re-used again until the channel is removed, the case where for abnormality processing, as the SSD of storage equipment, needing will be some
NAND is written to prevent loss of data in significant data (FTL mapping table), and the prior art can not timely, in the shortest time
The descriptor that responding need to complete is unable to satisfy demand so that SSD safety and data integrity are reduced.
Summary of the invention
It is an object of the invention to overcome the deficiencies of existing technologies, provide a kind of based on SSD optimization descriptor processing sequence
Method and its system.
To achieve the above object, the present invention is used in lower technical solution:
A method of descriptor processing sequence is optimized based on SSD, comprising the following steps:
S1 judges whether there is anomalous event triggering and interrupts；If so, into S2；If it is not, then entering S3；
S2 issues the corresponding descriptor of abnormality processing, and is labeled as high priority descriptor；
S3, judgement issue the descriptor for whether having priority to mark in descriptor；If so, into S8；If it is not, then entering
S4；
The channel S4, NFC sequentially issues descriptor；
S5, judges whether the channel CDMA is in idle condition；If so, into S7；If it is not, then entering S6；
It is idle to wait the channel CDMA, and returns to S5 by S6；
The channel S7, CDMA issues descriptor and sequentially executes descriptor to NAND, NAND；
S8, resets the channel CDMA, and the green channel of NFC preferentially issues priority flag descriptor；
The channel S9, CDMA issues the descriptor that priority flag descriptor has priority to mark to NAND, NAND execution.
Its further technical solution are as follows: before the S1, further includes: start abnormality processing work.
Its further technical solution are as follows: the S7 includes:
The channel S71, CDMA issues descriptor to NAND；
S72, NAND sequentially execute descriptor.
Its further technical solution are as follows: the S8 includes:
S81 resets the channel CDMA；
The green channel of S82, NFC preferentially issue priority flag descriptor.
Its further technical solution are as follows: the S9 includes:
The channel S91, CDMA issues priority flag descriptor to NAND；
S92, NAND execute the descriptor for having priority to mark.
A kind of system based on SSD optimization descriptor processing sequence, comprising: the first judging unit handles marking unit, the
Two judging units, channel issuance unit, third judging unit wait unit, issue execution unit, reset preferential issuance unit,
And issue execution priority unit；
First judging unit is interrupted for judging whether there is anomalous event triggering；
The processing marking unit for issuing the corresponding descriptor of abnormality processing, and is labeled as high priority descriptor；
The second judgment unit, for judging to issue the descriptor for whether thering is priority to mark in descriptor；
The channel issuance unit sequentially issues descriptor for the channel NFC；
The third judging unit, for judging whether the channel CDMA is in idle condition；
The waiting unit, for waiting the channel CDMA idle；
It is described to issue execution unit, descriptor, which is issued, for the channel CDMA sequentially executes descriptor to NAND, NAND；
The preferential issuance unit of resetting, for resetting the channel CDMA, the green channel of NFC preferentially issues priority label
Descriptor；
It is described to issue execution priority unit, priority flag descriptor, which is issued, for the channel CDMA holds to NAND, NAND
The descriptor that row has priority to mark.
Its further technical solution are as follows: the execution unit that issues includes issuing module and execution module；
It is described to issue module, descriptor is issued to NAND for the channel CDMA；
The execution module sequentially executes descriptor for NAND.
Its further technical solution are as follows: the preferential issuance unit of resetting includes resetting module and preferentially issues module；
The resetting module, for being reset to the channel CDMA；
Described preferentially to issue module, the green channel for NFC preferentially issues priority flag descriptor.
Its further technical solution are as follows: the execution priority unit that issues includes issuing priority block and executing preferential
Grade module；
It is described to issue priority block, priority flag descriptor is issued to NAND for the channel CDMA；
The execution priority module executes the descriptor for having priority to mark for NAND.
Compared with the prior art, the invention has the advantages that: by that will have the preferential descriptor for executing label from green
It is preferentially executed in channel, effectively improve descriptor executes sequence, when reducing the completion for the descriptor for needing to execute in time
Between, effectively improve the safety and stability of SSD, preferably meet demand.
The invention will be further described in the following with reference to the drawings and specific embodiments.
Detailed description of the invention
Fig. 1 is the channel the NFC block diagram of the prior art；
Fig. 2 is the NFC abnormality processing flow chart of the prior art；
Fig. 3 is a kind of method flow diagram for optimizing descriptor processing sequence based on SSD of the present invention；
Fig. 4 is the optimization block diagram of the green channel of NFC of the present invention；
Fig. 5 is a kind of system block diagram for optimizing descriptor processing sequence based on SSD of the present invention.
10 first judging units 20 handle marking unit
30 second judgment unit, 40 channel issuance unit
50 third judging units 60 wait unit
70, which issue execution unit 71, issues module
72 execution modules 80 reset preferential issuance unit
81 resetting modules 82 preferentially issue module
90, which issue execution priority unit 91, issues priority block
92 execution priority modules
Specific embodiment
In order to more fully understand technology contents of the invention, combined with specific embodiments below to technical solution of the present invention into
One step introduction and explanation, but not limited to this.
Such as Fig. 1 to specific embodiment shown in fig. 5, wherein the prior art as shown in Figure 1 to Figure 2；The channel NFC it is every
One CE corresponds to a channel CDMA, and when issuing descriptor, descriptor can be sequentially issued to the channel NFC, each NFC by NFC
The corresponding channel CDMA is bound in channel, once channel has issued descriptor, which cannot be re-used again until the channel
It is removed.
Wherein, as shown in Figure 2, NFC abnormality processing process is as follows:
1, abnormal interrupt generation is judged whether there is；2, when there is interruption to generate, the abnormal corresponding descriptor of processing is issued；3,NFC
Sequentially issue the descriptor in the channel NFC；4, judge whether the channel CDMA is idle；5, the channel CDMA is handed down in the channel NFC；6,
The channel CDMA issues descriptor to NAND；7, NAND sequentially executes descriptor.
The case where for abnormality processing, needs to write some significant datas (FTL mapping table) as the SSD of storage equipment
Enter NAND to prevent loss of data, according to the above-mentioned method sequentially executed, timely can not respond us in the shortest time
The descriptor that need to be completed, so that SSD safety and data integrity are reduced.
As shown in Figure 3 to Figure 4, the invention discloses a kind of methods based on SSD optimization descriptor processing sequence, including with
Lower step:
S1 judges whether there is anomalous event triggering and interrupts；If so, into S2；If it is not, then entering S3；
S2 issues the corresponding descriptor of abnormality processing, and is labeled as high priority descriptor；
S3, judgement issue the descriptor for whether having priority to mark in descriptor；If so, into S8；If it is not, then entering
S4；
The channel S4, NFC sequentially issues descriptor；
S5, judges whether the channel CDMA is in idle condition；If so, into S7；If it is not, then entering S6；
It is idle to wait the channel CDMA, and returns to S5 by S6；
The channel S7, CDMA issues descriptor and sequentially executes descriptor to NAND, NAND；
S8, resets the channel CDMA, and the green channel of NFC preferentially issues priority flag descriptor；
The channel S9, CDMA issues the descriptor that priority flag descriptor has priority to mark to NAND, NAND execution.
Wherein, before the S1, further includes: start abnormality processing work.
Wherein, the S7 includes:
The channel S71, CDMA issues descriptor to NAND；
S72, NAND sequentially execute descriptor.
Wherein, the S8 includes:
S81 resets the channel CDMA；
The green channel of S82, NFC preferentially issue priority flag descriptor.
Wherein, the S9 includes:
The channel S91, CDMA issues priority flag descriptor to NAND；
S92, NAND execute the descriptor for having priority to mark.
Wherein, as shown in figure 4, there is corresponding NFC green channel (Green Channel) under each channel NFC,
NFC can also be issued to green channel, the descriptor for being issued to green channel can be preferential in addition to being issued to the common channel NFC
The idle channel CDMA is occupied, preferentially issues descriptor to NAND.
Wherein, green channel, for the individual channel in the channel NFC, can store and need the description that timely responds to
Symbol, is used for abnormality processing.
The present invention, can be significantly by optimizing the method that descriptor processing sequence handles abnormality processing using green channel
The controllability for promoting descriptor execution sequence, optimizes the operation order of NAND when for SSD exception, improves NFC exception
The efficiency of reason improves the reliability and safety of SSD data.
As shown in figure 5, the invention discloses a kind of systems based on SSD optimization descriptor processing sequence, comprising: first sentences
Disconnected unit 10 handles marking unit 20, second judgment unit 30, channel issuance unit 40, third judging unit 50, waiting unit
60, execution unit 70 is issued, resets preferential issuance unit 80, and issue execution priority unit 90；
First judging unit 10 is interrupted for judging whether there is anomalous event triggering；
The processing marking unit 20 is described for issuing the corresponding descriptor of abnormality processing, and labeled as high priority
Symbol；
The second judgment unit 30, for judging to issue the descriptor for whether thering is priority to mark in descriptor；
The channel issuance unit 40 sequentially issues descriptor for the channel NFC；
The third judging unit 50, for judging whether the channel CDMA is in idle condition；
The waiting unit 60, for waiting the channel CDMA idle；
It is described to issue execution unit 70, descriptor, which is issued, for the channel CDMA sequentially executes descriptor to NAND, NAND；
The preferential issuance unit 80 of resetting, for resetting the channel CDMA, the green channel of NFC preferentially issues priority mark
Remember descriptor；
It is described to issue execution priority unit 90, priority flag descriptor is issued to NAND, NAND for the channel CDMA
Execute the descriptor for thering is priority to mark.
Wherein, the execution unit 70 that issues includes issuing module 71 and execution module 72；
It is described to issue module 71, descriptor is issued to NAND for the channel CDMA；
The execution module 72, sequentially executes descriptor for NAND.
Wherein, the preferential issuance unit 80 of resetting includes resetting module 81 and preferentially issues module 82；
The resetting module 81, for being reset to the channel CDMA；
Described preferentially to issue module 82, the green channel for NFC preferentially issues priority flag descriptor.
Wherein, the execution priority unit 90 that issues includes issuing priority block 91 and execution priority module 92；
It is described to issue priority block 91, priority flag descriptor is issued to NAND for the channel CDMA；
The execution priority module 92 executes the descriptor for having priority to mark for NAND.
Wherein, the sequence that descriptor executes determines that NAND needs the respective operations done, when there is the case where abnormality processing
When, the execution sequence of descriptor just becomes particularly important, will have the preferential descriptor for executing label preferential from green channel
It executes, can effectively improve descriptor executes sequence, to improve the efficiency and timeliness of NFC abnormality processing, guarantees
The stability and safety of SSD.
It is above-mentioned that technology contents of the invention are only further illustrated with embodiment, in order to which reader is easier to understand, but not
It represents embodiments of the present invention and is only limitted to this, any technology done according to the present invention extends or recreation, by of the invention
Protection.Protection scope of the present invention is subject to claims.
Claims (9)
1. a kind of method based on SSD optimization descriptor processing sequence, which comprises the following steps:
S1 judges whether there is anomalous event triggering and interrupts；If so, into S2；If it is not, then entering S3；
S2 issues the corresponding descriptor of abnormality processing, and is labeled as high priority descriptor；
S3, judgement issue the descriptor for whether having priority to mark in descriptor；If so, into S8；If it is not, then entering S4；
The channel S4, NFC sequentially issues descriptor；
S5, judges whether the channel CDMA is in idle condition；If so, into S7；If it is not, then entering S6；
It is idle to wait the channel CDMA, and returns to S5 by S6；
The channel S7, CDMA issues descriptor and sequentially executes descriptor to NAND, NAND；
S8, resets the channel CDMA, and the green channel of NFC preferentially issues priority flag descriptor；
The channel S9, CDMA issues the descriptor that priority flag descriptor has priority to mark to NAND, NAND execution.
2. a kind of method based on SSD optimization descriptor processing sequence according to claim 1, which is characterized in that described
Before S1, further includes: start abnormality processing work.
3. a kind of method based on SSD optimization descriptor processing sequence according to claim 1, which is characterized in that described
S7 includes:
The channel S71, CDMA issues descriptor to NAND；
S72, NAND sequentially execute descriptor.
4. a kind of method based on SSD optimization descriptor processing sequence according to claim 1, which is characterized in that described
S8 includes:
S81 resets the channel CDMA；
The green channel of S82, NFC preferentially issue priority flag descriptor.
5. a kind of method based on SSD optimization descriptor processing sequence according to claim 1, which is characterized in that described
S9 includes:
The channel S91, CDMA issues priority flag descriptor to NAND；
S92, NAND execute the descriptor for having priority to mark.
6. a kind of system based on SSD optimization descriptor processing sequence characterized by comprising the first judging unit, processing mark
Note unit, second judgment unit, channel issuance unit, third judging unit wait unit, issue execution unit, and resetting is preferential
Issuance unit, and issue execution priority unit；
First judging unit is interrupted for judging whether there is anomalous event triggering；
The processing marking unit for issuing the corresponding descriptor of abnormality processing, and is labeled as high priority descriptor；
The second judgment unit, for judging to issue the descriptor for whether thering is priority to mark in descriptor；
The channel issuance unit sequentially issues descriptor for the channel NFC；
The third judging unit, for judging whether the channel CDMA is in idle condition；
The waiting unit, for waiting the channel CDMA idle；
It is described to issue execution unit, descriptor, which is issued, for the channel CDMA sequentially executes descriptor to NAND, NAND；
The preferential issuance unit of resetting, for resetting the channel CDMA, the green channel of NFC preferentially issues priority label description
Symbol；
It is described to issue execution priority unit, priority flag descriptor is issued to NAND for the channel CDMA, and NAND execution has
The descriptor of priority label.
7. a kind of system based on SSD optimization descriptor processing sequence according to claim 6, which is characterized in that described
Issuing execution unit includes issuing module and execution module；
It is described to issue module, descriptor is issued to NAND for the channel CDMA；
The execution module sequentially executes descriptor for NAND.
8. a kind of system based on SSD optimization descriptor processing sequence according to claim 6, which is characterized in that described
Preferential issuance unit is reset to include resetting module and preferentially issue module；
The resetting module, for being reset to the channel CDMA；
Described preferentially to issue module, the green channel for NFC preferentially issues priority flag descriptor.
9. a kind of system based on SSD optimization descriptor processing sequence according to claim 6, which is characterized in that described
Issuing execution priority unit includes issuing priority block and execution priority module；
It is described to issue priority block, priority flag descriptor is issued to NAND for the channel CDMA；
The execution priority module executes the descriptor for having priority to mark for NAND.
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| CN201910312128.4A CN110058818B (en) | 2019-04-18 | 2019-04-18 | Method and system for optimizing descriptor processing sequence based on SSD |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080082731A1 (en) * | 2006-09-28 | 2008-04-03 | Vijay Karamcheti | Main memory in a system with a memory controller configured to control access to non-volatile memory, and related technologies |
| CN106126124A (en) * | 2016-06-29 | 2016-11-16 | 联想(北京)有限公司 | A kind of data processing method and electronic equipment |
| CN108388525A (en) * | 2017-02-02 | 2018-08-10 | 爱思开海力士有限公司 | Storage system and its operating method |
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2019
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Patent Citations (3)
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|---|---|---|---|---|
| US20080082731A1 (en) * | 2006-09-28 | 2008-04-03 | Vijay Karamcheti | Main memory in a system with a memory controller configured to control access to non-volatile memory, and related technologies |
| CN106126124A (en) * | 2016-06-29 | 2016-11-16 | 联想(北京)有限公司 | A kind of data processing method and electronic equipment |
| CN108388525A (en) * | 2017-02-02 | 2018-08-10 | 爱思开海力士有限公司 | Storage system and its operating method |
Non-Patent Citations (3)
| Title |
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| GUANYINGWU: "Reducing SSD access latency via NAND flash program and erase suspension", 《JOURNAL OF SYSTEMS ARCHITECTURE》 * |
| 余晨晔: "基于重复写入特性的大容量闪存页读写优化", 《中国优秀硕士学位论文全文数据库 (信息科技辑)》 * |
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