CN203179004U - Hardware setting system of disk array mode - Google Patents
Hardware setting system of disk array mode Download PDFInfo
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- CN203179004U CN203179004U CN 201220461258 CN201220461258U CN203179004U CN 203179004 U CN203179004 U CN 203179004U CN 201220461258 CN201220461258 CN 201220461258 CN 201220461258 U CN201220461258 U CN 201220461258U CN 203179004 U CN203179004 U CN 203179004U
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Abstract
A hardware setting system of a disk array mode realizes setting of the disk array mode through hardware operation, and comprises the following components: a switch driving module, a mode presetting module and a mode selecting module. The mode presetting module is used for setting the disk array mode according to a driving signal. The switch driving module is used for transmitting the driving signal which is used for triggering the disk array mode. The mode selecting module is used for selecting a preset disk array mode according to the driving signal which is transmitted from the switch driving module; wherein, the driving signal is a level signal. In the mode presetting module, corresponding disk array mode is set according to a pre-combined level signal. After the switch driving module transmits the driving signal, the mode selecting module identifies, and then the preset disk array mode is selected in the mode presetting module. Therefore setting of the disk array mode does not depend on software in operating system, and can be realized just through the hardware which is dependent from the operating system.
Description
Technical field
The utility model relates to the setting of disk array pattern, particularly relates to a kind of hardware setting system of disk array pattern.
Background technology
Disk array (RAID, Redundant Arrays of Inexpensive Disks), principle is to utilize the array mode to make the disk group, cooperates the design of data dispersed arrangement, promotes the security of data.Disk array be by a lot of cheap, capacity is less, stability is higher, the slow disk of speed, is combined into a large-scale disk group, utilizes indivedual disks to provide data to produce addition effect promoting whole magnetic disk system effectiveness.Utilize this technology simultaneously, data are cut into many sections, leave in respectively on each hard disk.Disk array can also utilize the idea of parity check (Parity Check), and in array during arbitrary hard disk failure, but sense data still when data reconstruction, is inserted data in the new hard disk after as calculated again.The RAID technology mainly comprises RAID 0～RAID 7 and waits several standards, and their emphasis has nothing in common with each other.
Disk array has dual mode to realize, that is exactly " software array " and " hardware array ".
Software array refers to that the disk management function that provides by network operating system self is configured to Logical Disk with the polylith hard disk on the ordinary magnetic disc expansion card that connects, and forms array.Software array can provide the data redundancy function, but the performance of disk subsystem can decrease, and the reduction amplitude that has is also bigger, reaches about 30%.
The hardware array is to use special disk array card to realize.Functions such as the hardware array can provide online dilatation, on-the-fly modifies the array rank, automaticdata recovers, driver roaming, cache store are dashed.It can provide the solution of performance, data protection, reliability, availability and manageability.The processing unit of RAID card special use is operated, and its performance will be higher than conventional non-array hard disk far away, and safer more stable.
But no matter be software array or hardware array, all need to check, manage, dispose etc. operation by the RAID management software.Thereby will inevitably there be compatibling problem between RAID management software and the operating system.
The utility model content
Based on this, provide a kind of hardware setting system of disk array pattern of the hardware setting mode that can be independent of the disk array pattern outside the operating system.
A kind of hardware setting system of disk array pattern, the setting by hardware operation realization disk array pattern comprises switch drive module, pattern preset module and mode selection module;
Described pattern preset module is used for according to driving signal the disk array pattern being set in advance;
Described switch drive module is used for sending the driving signal that triggers the disk array pattern;
The disk array pattern that described mode selection module selects described pattern preset module to pre-set for the driving signal that sends according to described switch drive module;
Described mode selection module is connected with described switch drive module and described pattern preset module;
Wherein, the driving signal is level signal, level signal according to predetermined combinations in the described pattern preset module arranges corresponding disk array pattern, after described switch drive module is sent and is driven signal, identified by described mode selection module, in the pattern preset module, select the disk array pattern that presets then.
Among embodiment, also comprise the alarm module that is connected with described mode selection module therein, described mode selection module can't be identified described switch drive module and send when driving signal, and described alarm module sends alerting signal.
Therein among embodiment, described switch drive module comprises 3 on-off circuits, each on-off circuit sends low level or high level signal, and the low level that described 3 on-off circuits send or high level signal generate 7 kinds of driving signals according to the mode of permutation and combination.
Among embodiment, described pattern preset module drives the signal correspondences according to 7 kinds and presets RAID0, JBOD therein, RAID1, and RAID3, RAID5, CLOSE and PM remove 7 kinds of disk array patterns of RAID.
Among embodiment, described mode selection module drives 7 kinds of disk array model selections disk array pattern corresponding with the driving signal that signals preset according to described 7 kinds in described pattern preset module therein.
Therein among embodiment, described mode selection module receives described on-off circuit and sends and continue to surpass 3 seconds low level or high level signal.
Among embodiment, described on-off circuit comprises the exterior mechanical switch therein, produces low level or high level when described mechanical switch is struck.
The hardware setting system of above-mentioned disk array pattern arranges the disk array pattern according to driving signal in advance by the pattern preset module, send the driving signal that needs by the gauge tap driver module then, judge the back pattern that selection needs in the disk array pattern that pre-sets via mode selection module identification.In whole model selection or transfer process, only need the gauge tap driver module to send selection or conversion that the driving signal that needs just can be realized the disk array pattern.And switch drive module is sent low level or high level signal does not need software control, so the setting of disk array pattern do not rely on the software in the operating system, only just can realize by being independent of the outer hardware of operating system.
Description of drawings
Fig. 1 is the module map of the hardware setting system of disk array pattern.
Embodiment
As shown in Figure 1, be the module map of the hardware setting system of disk array pattern.A kind of hardware setting system of disk array pattern, the setting by hardware operation realization disk array pattern comprises switch drive module 102, pattern preset module 104 and mode selection module 106.
The disk array pattern that the driving signal preference pattern preset module 104 that mode selection module 106 is used for sending according to switch drive module 102 pre-sets.
Wherein, the driving signal is level signal, level signal according to predetermined combinations in the pattern preset module 104 arranges corresponding disk array pattern, after switch drive module 102 is sent and is driven signal, identified by mode selection module 106, in pattern preset module 104, select the disk array pattern that presets then.
Particularly, the corresponding disk array pattern of the high level that sends of 3 on-off circuits and low level combination is as follows:
When the driving signal that sends when 3 on-off circuits was low level, low level, low level, corresponding disk array pattern was RAID0.RAID 0 is Data Stripping(data disk-striping strategies).The data of whole Logical Disk are distributed on a plurality of physical disks by itemize (stripped), and the read/write that can walk abreast provides the fastest speed, but does not have redundant ability.Require at least two disks.We can obtain the capacity of bigger single Logical Disk by RAID 0, and read the higher access speed of acquisition by to a plurality of disk the time.What RAID 0 at first considered is speed and the capacity of disk, has ignored safety, as long as one of them disk is out of joint, the data of so whole array all can not protected.
When the driving signal that sends when 3 on-off circuits was low level, high level, low level, corresponding disk array pattern was JBOD.JBOD represents Just a Bunch ofDrives, and Magnetic Disk Controller is regarded each physical disk as independently disk, so each disk is Logical Disk independently.JBOD does not provide data redundancy yet.Require at least one disk.
When the driving signal that sends when 3 on-off circuits was low level, low level, high level, corresponding disk array pattern was RAID1.RAID 1, claims the mirror image mode again, just the redundancy of data.In whole mirrored procedure, the disk size of having only half is effective (second half disk size is used for depositing same data).Compare with RAID 0, what RAID 1 at first considered is security, and capacity reduces by half, speed is constant.
When the driving signal that sends when 3 on-off circuits was low level, high level, high level, corresponding disk array pattern was RAID3.
When the driving signal that sends when 3 on-off circuits was high level, low level, high level, corresponding disk array pattern was RAID5.
RAID 3 and RAID 5 are verification modes.The working method of RAID 3 is to deposit checking data with a disk.Because the change of any data all will be revised corresponding data check information, the disk of store data has several and concurrent working, and the disk of depositing checking data has only one, the bottleneck when this has just brought checking data to deposit.The working method of RAID 5 is that the data check that each disk generates is cut into piece, be stored in respectively in each disk of forming array and go, so just alleviated the bottleneck problem that produces when checking data is deposited, but the cost that all will pay on the speed is deposited in partition data and control.
When the driving signal that sends when 3 on-off circuits was high level, low level, low level, corresponding disk array pattern was CLOSE.Namely close current disk array.
When the driving signal that sends when 3 on-off circuits was high level, high level, high level, corresponding disk array pattern was that PM removes RAID mode.Namely remove the current array pattern.
In the above-mentioned disk array pattern handoff procedure, for preventing that the accident collision mechanical switch from causing on-off circuit to send level signal, thereby, mode selection module 106 receives described on-off circuit and sends and continue to surpass 3 seconds low level or high level signal, and mode selection module just received when namely the low level sent of on-off circuit or high level signal continued to surpass 3 seconds.On-off circuit comprises the exterior mechanical switch, produces low level or high level when mechanical switch is struck.Namely press mechanical switch and surpass 3 seconds, the level signal of on-off circuit is come into force.
The hardware setting system of disk array pattern also comprises the alarm module that is connected with mode selection module 106, and mode selection module 106 can't send when driving signal by the identification switch driver module, and alarm module sends alerting signal.Generally speaking, when if the level signal that mode selection module 106 receives is less than 3, then mechanical switch can be released or on-off circuit is wrong, can't send normal driving signal, it is the change of uncontrollable disk array pattern, therefore, when mode selection module 106 can't be selected the disk array pattern, alarm module can send alerting signal with the form of sound or alarm lamp.
The hardware setting system of above-mentioned disk array pattern arranges the disk array pattern according to driving signal in advance by the pattern preset module, send the driving signal that needs by the gauge tap driver module then, judge the back pattern that selection needs in the disk array pattern that pre-sets via mode selection module identification.In whole model selection or transfer process, only need the gauge tap driver module to send selection or conversion that the driving signal that needs just can be realized the disk array pattern.And switch drive module is sent low level or high level signal does not need software control, so the setting of disk array pattern do not rely on the software in the operating system, only just can realize by being independent of the outer hardware of operating system.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (5)
1. the hardware setting system of a disk array pattern realizes it is characterized in that the setting of disk array pattern by hardware operation, comprises switch drive module, pattern preset module and mode selection module;
Described pattern preset module is used for according to driving signal the disk array pattern being set in advance; Described pattern preset module drives the signal correspondence according to 7 kinds and presets RAID0, JBOD, RAID1, RAID3, RAID5, CLOSE and PM removing RAID7 kind disk array pattern;
Described switch drive module is used for sending the driving signal that triggers the disk array pattern; Described switch drive module comprises 3 on-off circuits, and each on-off circuit sends low level or high level signal, and the low level that 3 on-off circuits send or high level signal generate 7 kinds according to the mode of permutation and combination and drive signals;
The disk array pattern that described mode selection module selects described pattern preset module to pre-set for the driving signal that sends according to described switch drive module;
Described mode selection module is connected with described switch drive module and described pattern preset module;
Wherein, the driving signal is level signal, level signal according to predetermined combinations in the described pattern preset module arranges corresponding disk array pattern, after described switch drive module is sent and is driven signal, identified by described mode selection module, in the pattern preset module, select the disk array pattern that presets then.
2. the hardware setting system of disk array pattern according to claim 1, it is characterized in that, also comprise the alarm module that is connected with described mode selection module, described mode selection module can't be identified described switch drive module and send when driving signal, and described alarm module sends alerting signal.
3. the hardware setting system of disk array pattern according to claim 1, it is characterized in that described mode selection module drives 7 kinds of disk array model selections disk array pattern corresponding with driving signal that signal presets according to described 7 kinds in described pattern preset module.
4. the hardware setting system of disk array pattern according to claim 1 is characterized in that, described mode selection module receives described on-off circuit and sends low level or the high level signal that continues above 3 seconds.
5. the hardware setting system of disk array pattern according to claim 1 is characterized in that, described on-off circuit comprises the exterior mechanical switch, produces low level or high level when described mechanical switch is struck.
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| CN 201220461258 CN203179004U (en) | 2012-09-11 | 2012-09-11 | Hardware setting system of disk array mode |
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| CN 201220461258 CN203179004U (en) | 2012-09-11 | 2012-09-11 | Hardware setting system of disk array mode |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113821262A (en) * | 2020-06-19 | 2021-12-21 | 纬创资通股份有限公司 | Mainboard and method for switching signal sources |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113821262A (en) * | 2020-06-19 | 2021-12-21 | 纬创资通股份有限公司 | Mainboard and method for switching signal sources |
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Granted publication date: 20130904 Termination date: 20170911 |