CN105224243B - A kind of speed adjusting method of initialization and the reconstruction of disk array - Google Patents
A kind of speed adjusting method of initialization and the reconstruction of disk array Download PDFInfo
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- CN105224243B CN105224243B CN201510549098.0A CN201510549098A CN105224243B CN 105224243 B CN105224243 B CN 105224243B CN 201510549098 A CN201510549098 A CN 201510549098A CN 105224243 B CN105224243 B CN 105224243B
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Abstract
The present invention discloses the speed adjusting method of initialization and the reconstruction of a kind of disk array, the method includes：Disk array RAID is by adjusting the first maximum concurrent band number and the first minimum interval, to adjust the speed of RAID initialization；First maximum concurrent band number is the adjacent band number maximum value initialized twice；First minimum interval is the time used in the band number of the several numbers of the maximum concurrent band of adjacent initialization first twice；RAID is by adjusting the second maximum concurrent band number and the second minimum interval, to adjust the speed of RAID reconstructions；Second maximum concurrent band number is the adjacent band number maximum value rebuild twice；Second minimum interval is the time used in the adjacent band number for rebuilding the second several numbers of maximum concurrent band twice.The method of the present invention allows settings of the disk array RAID according to user, judges read-write and reconstruction, read-write and the priority of initialization and resource accounting, adapts to different business demands.
Description
Technical field
The present invention relates to field of computer technology, and in particular to the speed of initialization and the reconstruction of a kind of disk array is adjusted
Method.
Background technology
In traditional magnetic disk array (Redundant Arrays of independent Disks, RAID), in order to make
RAID read-writes process can be more quick, and RAID is initialized, and RAID is rebuild after degrading.
In traditional RAID, the speed of initialization and the reconstruction of RAID is based on fixed initialization speed and fixed heavy
It builds speed, and initialization thread, rebuilds what the priority of thread and user writable data thread was also to determine.
But the initialization thread of RAID, rebuild thread can with the IO of user writable data thread generate lock conflict and
The competition of other resources, thus RAID initialization or reconstruction process can seriously affect RAID read-write speed.Specifically should
In, it also will appear situation about being required to initializing and rebuilding speed, so existing fixed initialization speed and again
Speed is built, practical application demand can not be met well.
Invention content
The technical problems to be solved by the invention are in traditional RAID, the initialization thread of RAID, rebuild thread can with
The IO of family read-write data thread generates lock conflict and the competition of other resources, therefore the initialization of RAID or reconstruction process meeting
The problem of seriously affecting the speed of RAID read-writes.
For this purpose, the present invention provides a kind of speed adjusting method of initialization and the reconstruction of disk array, the method
Including：
Disk array RAID is by adjusting the first maximum concurrent band number and the first minimum interval, at the beginning of adjusting RAID
The speed of beginningization；Described first maximum concurrent band number is the adjacent band number maximum value initialized twice；Described first is minimum
Time interval is the time used in the adjacent band number for initializing the described first several numbers of maximum concurrent band twice；
RAID is by adjusting the second maximum concurrent band number and the second minimum interval, to adjust the speed of RAID reconstructions
Degree；Described second maximum concurrent band number is the adjacent band number maximum value rebuild twice；Second minimum interval is
Time used in the adjacent band number for rebuilding the described second several numbers of maximum concurrent band twice.
Optionally, the method further includes：
RAID is according to preset first priority, the execution order of adjustment initialization thread and user writable data thread,
Priority of preset first priority for initialization thread and user writable data thread；
RAID rebuilds the execution order of thread and user writable data thread, institute according to preset second priority, adjustment
It is to rebuild the priority of thread and user writable data thread to state preset second priority.
Optionally, preset first priority is the first priority of user setting, and described preset second is preferential
Grade is the second priority of user setting.
Optionally, the RAID is according to preset first priority, adjustment initialization thread and user writable data thread
Execution order, including：
RAID adjusts initialization thread and user writable after the first precedence information of the user setting is received
The execution order of data thread and timeslice occupation proportion；
Correspondingly, the RAID rebuilds thread and user writable data thread according to preset second priority, adjustment
Execution order, including：
For RAID after the second precedence information of the user setting is received, thread and user writable number are rebuild in adjustment
According to the execution order of thread and timeslice occupation proportion.
Compared with the prior art, method of the invention allows settings of the disk array RAID according to user, judges to read and write
With rebuilding, reading and writing priority and resource accounting with initializing, different business demands is adapted to.
Description of the drawings
Fig. 1 shows the speed adjusting method of initialization and the reconstruction of a kind of disk array.
Specific embodiment
As shown in Figure 1, the present embodiment discloses the speed adjusting method of initialization and the reconstruction of a kind of disk array, the side
Method includes：
Disk array RAID is by adjusting the first maximum concurrent band number and the first minimum interval, at the beginning of adjusting RAID
The speed of beginningization；First maximum concurrent band number is the adjacent band number maximum value initialized twice；First minimum interval
For the time used in the band number of the several numbers of the maximum concurrent band of adjacent initialization first twice；
RAID is by adjusting the second maximum concurrent band number and the second minimum interval, to adjust the speed of RAID reconstructions
Degree；Second maximum concurrent band number is the adjacent band number maximum value rebuild twice；Second minimum interval for it is adjacent twice
Rebuild the time used in the band number of the second several numbers of maximum concurrent band.
In a particular application, method may also include unshowned following steps in Fig. 1：
RAID is according to preset first priority, the execution order of adjustment initialization thread and user writable data thread,
Priority of preset first priority for initialization thread and user writable data thread；
RAID rebuilds the execution order of thread and user writable data thread according to preset second priority, adjustment, in advance
If the second priority be to rebuild the priority of thread and user writable data thread.
Preset first priority is the first priority of user setting, preset second priority for user setting the
Two priority.
RAID is according to preset first priority, the execution order of adjustment initialization thread and user writable data thread,
Including：
RAID is after the first precedence information of user setting is received, adjustment initialization thread and user writable data
The execution order of thread and timeslice occupation proportion；
Correspondingly, RAID rebuilds the execution of thread and user writable data thread according to preset second priority, adjustment
Order, including：
For RAID after the second precedence information of user setting is received, thread and user writable data line are rebuild in adjustment
The execution order of journey and timeslice occupation proportion.
The method of the present embodiment allows settings of the disk array RAID according to user, judge read-write with rebuild, read-write with
The priority of initialization and resource accounting, adapt to different business demands.
It should be noted that：" first " described herein " second " does not imply that ordinal relation or operative relationship, only uses
To distinguish different entities.
Claims (4)
1. a kind of speed adjusting method of initialization and the reconstruction of disk array, which is characterized in that the method includes：
Disk array RAID is by adjusting the first maximum concurrent band number and the first minimum interval, to adjust RAID initialization
Speed；Described first maximum concurrent band number is the adjacent band number maximum value initialized twice；First minimum time
Between be divided into time used in the adjacent band number for initializing the described first maximum concurrent several numbers of band twice；
RAID is by adjusting the second maximum concurrent band number and the second minimum interval, to adjust the speed of RAID reconstructions；Institute
It is the adjacent band number maximum value rebuild twice to state the second maximum concurrent band number；Second minimum interval is adjacent two
Time used in the secondary band number for rebuilding the described second several numbers of maximum concurrent band.
2. according to the method described in claim 1, it is further characterized in that, the method further includes：
RAID is according to preset first priority, and the execution order of adjustment initialization thread and user writable data thread is described
Priority of preset first priority for initialization thread and user writable data thread；
For RAID according to preset second priority, the execution order of thread and user writable data thread is rebuild in adjustment, described pre-
If the second priority be to rebuild the priority of thread and user writable data thread.
3. according to the method described in claim 2, it is characterized in that, preset first priority is the first of user setting
Priority, preset second priority are the second priority of user setting.
4. according to the method described in claim 3, it is characterized in that, the RAID is adjusted just according to preset first priority
The execution order of beginningization thread and user writable data thread, including：
RAID is after the first precedence information of the user setting is received, adjustment initialization thread and user writable data
The execution order of thread and timeslice occupation proportion；
Correspondingly, the RAID rebuilds the execution of thread and user writable data thread according to preset second priority, adjustment
Order, including：
For RAID after the second precedence information of the user setting is received, thread and user writable data line are rebuild in adjustment
The execution order of journey and timeslice occupation proportion.
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| CN201510549098.0A CN105224243B (en) | 2015-08-31 | 2015-08-31 | A kind of speed adjusting method of initialization and the reconstruction of disk array |
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| CN201510549098.0A CN105224243B (en) | 2015-08-31 | 2015-08-31 | A kind of speed adjusting method of initialization and the reconstruction of disk array |
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| CN105224243B true CN105224243B (en) | 2018-06-12 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103246480A (en) * | 2012-02-08 | 2013-08-14 | Lsi公司 | System and method for improved rebuild in RAID |
| CN103345450A (en) * | 2013-06-26 | 2013-10-09 | 浙江宇视科技有限公司 | Device and method for dynamically regulating redundant RAID array reconstruction |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080250269A1 (en) * | 2007-04-05 | 2008-10-09 | Jacob Cherian | System and Method for Improving Rebuild Speed Using Data in Disk Block |
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2015
- 2015-08-31 CN CN201510549098.0A patent/CN105224243B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103246480A (en) * | 2012-02-08 | 2013-08-14 | Lsi公司 | System and method for improved rebuild in RAID |
| CN103345450A (en) * | 2013-06-26 | 2013-10-09 | 浙江宇视科技有限公司 | Device and method for dynamically regulating redundant RAID array reconstruction |
Non-Patent Citations (3)
| Title |
|---|
| RAID一致性初始化方法研究;谭志虎等;《小型微型计算机系统》;20080731;第29卷(第7期);第1204-1207页 * |
| 一种提高磁盘阵列重建效率的缓存替换算法;毛波等;《华中科技大学学报（自然科学版）》;20110630;第39卷(第6期);第1-4页 * |
| 一种改进的RAID后台初始化技术;宋戈;《计算机与数字工程》;20101231;第38卷(第3期);第165-168页 * |
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