CN1284096C - Array data storage unit connecting and switching control system - Google Patents
Array data storage unit connecting and switching control system Download PDFInfo
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- CN1284096C CN1284096C CN 200410000425 CN200410000425A CN1284096C CN 1284096 C CN1284096 C CN 1284096C CN 200410000425 CN200410000425 CN 200410000425 CN 200410000425 A CN200410000425 A CN 200410000425A CN 1284096 C CN1284096 C CN 1284096C
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Abstract
The present invention relates to a switching and controlling system for the connection of an array type data storage device, which at least comprises a mode selecting module, a switching and controlling signal generating module, a switching and controlling signal switching module and a connection condition detecting module, wherein the connection condition detecting module can be matched with the array type data storage device which is provided with a plurality of data storage units connected in an array way, at least two data access channels and a switching and controlling program used for the selective connection between the data storage units and data access channels so as to provide a plurality of connection modes with different access ways, including a backup connection mode, a packet connection mode and a high-efficiency connection mode. The function enables the array type data storage device to be set in different operating modes according to different target requirements, including the backup of the access channels, the backup of the data storage units and a high-efficiency access mode, and enables the data storage system managing operation of a network server to be flexible.
Description
Technical field
The invention relates to a kind of computer data storing technology, particularly connect handover control system about a kind of array data storage device, this system can arrange in pairs or groups to the array data storage device, the a plurality of hard disc modules (FC HDD) or RAID (the Redundant Array of Independent Disks that are connected of Fibre Channel (optical-fibre channel) standard transmission interface for example, disk array) array hard disk unit, and this array data storage device has a plurality of data storage cell (for example a plurality of hard disc module) and at least two data access channels that connect with array way, connect these data storage cells and data access channel with connecting the switching control program selectivity, for multiple access connection mode, comprise the backup connection mode with various objectives, grouping connection mode and high-effect connection mode.
Background technology
The webserver is because the data of its processing are all very huge usually, therefore generally all dispose the great data storage device of capacity, for example the hard disk unit (FC HDD) of FC (Fibre Channel) communication specification or the array hard disk unit of RAID (Redundant Array of Independent Disks) standard specification provide quantity huge data, services function for network system whereby.These array data storage devices are to be made of a plurality of hard disk units, but equal independent access data of each hard disk unit wherein, and each hard disk unit can allow outside webserver access data by a plurality of data access channel usually.
The application of above-mentioned array data storage device often need provide the redundant function for the storage of data; Just when any one hard disk unit breaks down, can be immediately by the another one hard disk unit as redundant; Perhaps when the broken string situation appears in any one data access channel, can be immediately by the another one data storage cell as redundant, allow the outside webserver still can normally carry out data access to this array data storage device.
Summary of the invention
For overcoming the shortcoming of above-mentioned prior art, fundamental purpose of the present invention is to provide a kind of array data storage device to connect handover control system, it can allow same array data storage device according to different purpose demands, comprise connection backup, data storage cell backup and the dynamical access mode of access channel, and be set to different work connection modes.
For achieving the above object, array data storage device connection handover control system of the present invention is designed for arranges in pairs or groups to the array data storage device, the a plurality of hard disc modules (FC HDD) or RAID (Redundant Array ofIndependent Disks) the array hard disk unit that are connected of Fibre Channel standard transmission interface for example, this array data storage device has a plurality of data storage cell (for example a plurality of hard disc module) and at least two data access channels that connect with array way, connect these data storage cells and data access channel with connecting the switching control program selectivity, for multiple different access connection mode, comprise the backup connection mode, grouping connection mode and high-effect connection mode.
Array data storage device of the present invention connects handover control system and comprises at least: mode selection module, be used to select required connection mode, and can be first connection mode, second connection mode or the 3rd connection mode; Wherein first connection mode is that all data storage cells in this array data storage device all are connected to this first data access channel, but is not attached to this second data access channel; Second connection mode is to be connected to this first data access channel with first group in all data storage cells in this array data storage device, and will be wherein second group be connected to this second data access channel; The 3rd connection mode then is that all data storage cells in this array data storage device all are connected to this first data access channel and this second data access channel jointly; The switch-over control signal generation module, it can produce the switch-over control signal of one group of predetermined correspondence according to the connection mode that this mode selection module is selected; And handover module, it is coupled to each data storage cell in this array data storage device, and can respond the switch-over control signal that this switch-over control signal generation module produces and each data storage cell is connected to this first data access channel or this second data access channel.Also can comprise the connection state detection module, whether its each data storage cell that can detect in this array data storage device breaks with connection status between its data access channel that is connected; If, then send the redundant handover information to this switch-over control signal generation module, make this switch-over control signal generation module respond this redundant handover information, thereby produce corresponding switch-over control signal and also be sent to this handover module, be used for the data storage cell that this generations is broken changed to switch to being connected to another data access channel.
The advantage that array data storage device of the present invention connects handover control system is, can allow the array data storage device mode of operation different according to different purpose requirements set, makes the system management work of the webserver more flexible.
Description of drawings
Fig. 1 is that array data storage device of the present invention connects the application structure of handover control system and the basic structure of Object Oriented OO unit assembly model thereof;
Fig. 2 A is the enforcement example that array data storage device of the present invention connects the backup connection mode that handover control system provided;
Fig. 2 B is the enforcement example that array data storage device of the present invention connects the grouping connection mode that handover control system provided;
Fig. 2 C is the enforcement example that array data storage device of the present invention connects the high-effect connection mode that handover control system provided;
Fig. 3 is the logical circuit synoptic diagram, shows that array data storage device of the present invention connects an enforcement example of the inner structure of the handover module that handover control system adopted.
Embodiment
Embodiment
Below be conjunction with figs., describe the embodiment that array data storage device of the present invention connects handover control system in detail.
Fig. 1 is that array data storage device of the present invention connects the application structure of handover control system (as the included part of frame of broken lines of label 100 indications) and the basic structure of Object Oriented OO unit's assembly model (object-oriented component model) thereof.As shown in the figure, array data storage device of the present invention connects handover control system 100 and arranges in pairs or groups to array data storage device 10, this array data storage device 10 has a plurality of data storage cells and (in the embodiment in figure 1, supposes that array data storage device 10 has 6 data storage unit 11,12,13,14,15,16; But its maximum number can be decided according to the specification of this array data storage device 10), and overlap joint is at least two data access channels, comprise first data access channel 21 and second data access channel 22, connect these data storage cells 11,12,13,14,15,16 and data access channel 21,22 with connecting the switching control program selectivity, for multiple connection mode, comprise backup connection mode, grouping connection mode and high-effect connection mode with different access task performances.
Shown in Fig. 2 A, the backup connection mode is that all data storage cells 11,12,13,14,15,16 in this array data storage device 10 all are connected to first data access channel 21, but is not attached to second data access channel 22 (just with second data access channel 22 as redundant).When the broken string situation occurring between any one data storage cell (11,12,13,14,15 or 16) and first data access channel 21, array data storage device then of the present invention connects handover control system 100 can detect this situation immediately, and the data storage cell that the broken string situation will occur switches to and is connected to second data access channel 22.
In addition, the backup connection mode also can be used for hot spare (hot spare).Normal data storage cell and data access channel 21,22 are isolated, when other on line data storage unit has fault, handover control system 100 can be connected to data access channel with this hot spare data storage cell immediately, system can allow system be restored in the shortest time with reduction of data to new online data storage cell.
Shown in Fig. 2 B, the grouping connection mode is that first group in all data storage cells 11,12,13,14,15,16 in this array data storage device 10 (for example 3 data storage unit 11,12,13 wherein) are connected to this first data access channel 21, and wherein second group (for example other 3 data storage unit 14,15,16) are connected to this second data access channel 22.These two access channels are separate channel, and the array data storage device connects these two channels of handover control system access simultaneously.When any one is connected to when the broken string situation occurring between the data storage cell (11,12 or 13) of first data access channel 21 and first data access channel 21, array data storage device of the present invention connects handover control system 100 can detect this situation immediately, thereby the data storage cell that the broken string situation will occur switches to second data access channel 22 and is connected; Otherwise, when any one is connected to when the broken string situation occurring between the data storage cell (14,15 or 16) of second data access channel 22 and second data access channel 22, array data storage device of the present invention connects handover control system 100 also can detect this situation immediately, thereby the data storage cell that the broken string situation will occur switches to first data access channel 21 and is connected.
Shown in Fig. 2 C, high-effect connection mode then is that all data storage cells 11,12,13,14,15,16 in this array data storage device 10 all are connected to first data access channel 21 and second data access channel 22 jointly.Just system can utilize the same data storage cell of this two channels access simultaneously simultaneously.This connected mode can reach the highest data access usefulness.
In the practical application, above-mentioned array data storage device 10, for example array hard disk unit or RAID (Redundant Array of Independent Disks) the array hard disk unit formed of a plurality of hard disc modules (FC HDD) of being connected of Fibre Channel standard transmission interface.In addition, the data access channel the 21, the 22nd that this array data storage device 10 is overlapped is by specific management interface, IPMI (Intelligent Platform Management Interface for example, IPMI) management interface of standard specification (not showing in the accompanying drawings), be connected to the webserver (not showing in the accompanying drawings), allow this webserver and carry out data access whereby by this management interface by 21,22 pairs of these array data storage devices 10 of data access channel.Because FC, RAID and IPMI are the standard criterions that the computer network information field is used always and known, therefore it is not described in further detail.
As shown in Figure 1, the basic inner structure of array data storage device connection handover control system 100 of the present invention comprises at least: (a) mode selection module 110; (b) the switch-over control signal generation module 120; And (c) handover module 130; And can and then comprise connection state detection module 140.
Mode selection module 110 allows the user be used for selecting required connection mode in artificial mode in advance, can be backup connection mode, grouping connection mode or high-effect connection mode; Perhaps allow the webserver (in the accompanying drawings show) when real work according to the actual requirements, select required connection mode with automated manner.
Switch-over control signal generation module 120 can produce the switch-over control signal of one group of predetermined correspondence automatically according to the connection mode of above-mentioned mode selection module 110 selections, and these switch-over control signals are sent to handover module 130.
Handover module 130, application of logic circuit module for example, it is coupled to each data storage cell 11,12,13,14,15,16 in this array data storage device 10, and can respond the switch-over control signal that above-mentioned switch-over control signal generation module 120 produces, thereby each data storage cell 11,12,13,14,15,16 respectively according to the value of the switch-over control signal under it, is switched to and is connected to first data access channel 21 or second data access channel 22.For example, if mode selection module 110 selected connection modes are the backup connection mode, then handover module 130 can all be connected to first data access channel 21 with all data storage cells 11,12,13,14,15,16 in this array data storage device 10, but is not attached to second data access channel 22.If mode selection module 110 selected connection modes are the grouping connection mode, then handover module 130 can be connected to this first data access channel 21 with first group in all data storage cells 11,12,13,14,15,16 in this array data storage device 10 (for example 3 data storage unit 11,12,13 wherein), and wherein second group (for example other 3 data storage unit 14,15,16) are connected to this second data access channel 22.If mode selection module 110 selected connection modes are high-effect connection mode, then handover module 130 can all be connected to first data access channel 21 and second data access channel 22 jointly with all data storage cells 11,12,13,14,15,16 in this array data storage device 10.
Fig. 3 is an enforcement example of the inner structure of above-mentioned handover module 130, it is the hard disc module (FC HDD) of the specific FC of being used for (Fibre Channel) formula, wherein each FC hard disc module all has 2 connecting interface Port A and Port B and relevant activation signal Port_Bypass_Enable_A and Port_Bypass_Enable_B thereof, be used for being connected to first data access channel 21 and second data access channel 22 (for simplifying accompanying drawing, Fig. 3 only shows the connected mode of first data access channel 21) respectively by these 2 connecting interface Port A and Port B.In this embodiment, handover module 130 is for example to dispose AND door 131 and multiplexer 132 (the delta circuit symbology impact damper in the accompanying drawing) on each FC hard disc module; Wherein 2 of this AND door 131 input ends are connected to the switch-over control signal CS that Port_Bypass_Enable_A output terminal on FC hard disc module under it and switch-over control signal generation module 120 are produced; Can when Port_Bypass_Enable_A=1, make CS=1 whereby, thereby the FC hard disc module is connected to first data access channel 21 by multiplexer 132; If CS=0 can be not attached to the FC hard disc module first data access channel 21.Except the embodiment of Fig. 3, the inner structure of handover module 130 also has many other possible implementation.In addition because second data access channel 22 is identical with first data access channel 21 with connection switching controls mode between the FC hard disc module, so below will not carry out the explanation of repetition to it.
Whether each data storage cell 11,12,13,14,15,16 that connection state detection module 140 can detect in this array data storage device 10 breaks with connection status between its data access channel that is connected (21 or 22); If, then send the redundant handover information to this switch-over control signal generation module 120, make this switch-over control signal generation module 120 these redundant handover informations of response, thereby produce corresponding switch-over control signal and also be sent to this handover module 130, the data storage cell that makes this handover module 130 the broken string situation will occur changes to switch to and is connected to the another one data access channel.
Generally speaking, the array data storage device that the invention provides a kind of novelty connects handover control system, it can be arranged in pairs or groups to the array data storage device, this array data storage device has a plurality of data storage cells and at least two data access channels, connect these data storage cells and data access channel with connecting the switching control program selectivity, for multiple connection mode, comprise backup connection mode, grouping connection mode and high-effect connection mode with different access task performances.This function can allow the array data storage device mode of operation different according to different purpose requirements set, makes the system pipes science and engineering of the webserver more flexible.Therefore the present invention has splendid progressive and practicality.
Claims (6)
1. an array data storage device connects handover control system, can arrange in pairs or groups to the array data storage device, it is characterized in that, this array data storage device has a plurality of data storage cells and at least two data access channels, comprise first data access channel and second data access channel, connect these data storage cells and data access channel with connecting the switching control program selectivity, for multiple different data access connection mode, comprise first connection mode, second connection mode and the 3rd connection mode, wherein the data access usefulness of the 3rd connection mode is higher than second connection mode, and the data access usefulness of second connection mode is higher than first connection mode; This array data storage device connects handover control system and comprises at least:
Mode selection module is used to select required connection mode, can be first connection mode, second connection mode or the 3rd connection mode; Wherein first connection mode is that all data storage cells in this array data storage device all are connected to this first data access channel, but is not attached to this second data access channel; Second connection mode is that all data storage cells in this array data storage device are divided into first group, second group that is connected with at least two each self-selectivelies of data access channel at least, wherein first group is to be connected to this first data access channel, and second group is to be connected to this second data access channel; The 3rd connection mode then is that all data storage cells in this array data storage device all are connected to this first data access channel and this second data access channel jointly;
The switch-over control signal generation module, it can produce the switch-over control signal of one group of predetermined correspondence according to the connection mode that this mode selection module is selected; And
Handover module, it is coupled to each data storage cell in this array data storage device, and can respond the switch-over control signal that this switch-over control signal generation module is produced, each data storage cell is connected to this first data access channel or this second data access channel.
2. array data storage device as claimed in claim 1 connects handover control system, it is characterized in that this array data storage device is a RAID array hard disk unit.
3. array data storage device as claimed in claim 1 connects handover control system, it is characterized in that the array hard disk unit that this array data storage device is the FC formula.
4. array data storage device as claimed in claim 1 connects handover control system, it is characterized in that, this first data access channel and this second data access channel are compatible management interfaces to the IPMI standard criterion.
5. array data storage device as claimed in claim 1 connects handover control system, it is characterized in that, this system more and then comprise:
The connection state detection module, whether its each data storage cell that can detect in this array data storage device breaks with connection status between its data access channel that is connected; If, then send the redundant handover information to this switch-over control signal generation module, make this switch-over control signal generation module respond this redundant handover information, thereby produce corresponding switch-over control signal and also be sent to this handover module, be used for the data storage cell that this generations is broken changed to switch to being connected to another data access channel.
6. connect handover control system as claim 1,2,3,4 or 5 described array data storage devices, it is characterized in that, this first data access channel and this second data access channel are separate channel, connect these two channels of handover control system access simultaneously for this array data storage device.
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| CN 200410000425 CN1284096C (en) | 2004-01-18 | 2004-01-18 | Array data storage unit connecting and switching control system |
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| CN 200410000425 CN1284096C (en) | 2004-01-18 | 2004-01-18 | Array data storage unit connecting and switching control system |
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| CN1641618A CN1641618A (en) | 2005-07-20 |
| CN1284096C true CN1284096C (en) | 2006-11-08 |
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| US10078612B2 (en) * | 2014-07-28 | 2018-09-18 | Intel Corporation | Mode selective balanced encoded interconnect |
| TWI607315B (en) * | 2016-08-19 | 2017-12-01 | 神雲科技股份有限公司 | Method of determining connection states and device types of devices |
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Inventor after: Tao Yunqi Inventor after: Nie Shiyou Inventor before: Li Junliang Inventor before: Guo Zhihong |
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Effective date of registration: 20170410 Address after: Tianjin City Daxinzhuang town Jinnan District Hui Yuen Road junction and channel 11 building -1-302 Graceland Plaza Co-patentee after: Nie Shiyou Patentee after: Tao Yunqi Address before: Taipei City, Taiwan, China Patentee before: Inventec Corporation |
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