CN205608616U - Plug -in storage server - Google Patents

Abstract

The utility model relates to a plug -in storage server, including quick -witted case, the mainboard of quick -witted incasement and the control backplate of quick -witted incasement, the control backplate sets up with mainboard mutually perpendicular, the control backplate includes a plurality of hard disk interfaces, a plurality of SAS extension chip and management control chip, every hard disk interface and a SAS extension chip electric connection, the hard disk interface is used for connecting the hard disk, SAS extension chip is used for realizing extension, control and the management of hard disk, management control chip is used for carrying out the unified management to every SAS extension chip, the backplate still includes the public seat of CPCI connector for peg graft with female seat of CPCI connector on the mainboard, the CPCI connector includes power connector and communication connector. The utility model discloses use the CPCI connector replacement cable connection of military project level, simplify warpout case structure, optimize the connecting coupling quality, make the interior connection cable of complete machine seldom not have connection cable completely even, greatly improve stability, the reliability of server.

Description

Plug-in storage server

Technical field

This utility model relates to server, especially relates to a kind of plug-in storage server.

Background technology

On current server market, typically server is divided into tower, rack, blade server three types.

Blade server is generally used for the high-end markets such as large-scale data center.In the middle and low-end market of applicable SME users, the most still use the tower server that traditional complete machine is made up of the parts such as mainboard+central processing unit (CPU)+internal memory+power supply and substantial amounts of connecting line, in its cabinet, cabling is in disorder, affect outward appearance, simultaneously because connecting line is too much, during transporting and be mobile, it is easily caused adapter come off, the problem that connector contact is bad, the reliability and stability of server are affected great, although the mode of traditional colligation or gluing a certain degree of minimizing can cause the probability of problem, but there is great potential safety hazard.

Utility model content

Based on this, it is necessary to provide a kind of plug-in storage server that can reduce and even not use connecting line.

A kind of plug-in storage server, including the mainboard in cabinet, cabinet and the monitoring backboard in cabinet；Described monitoring backboard is arranged in a mutually vertical manner with mainboard, described monitoring backboard includes multiple hard-disk interface, multiple SAS extended chips and management control chip, each hard-disk interface and a SAS extended chip are electrically connected with, described hard-disk interface is used for connecting hard disk, described SAS extended chip is for realizing the extension of hard disk, control and management, described management control chip is for being managed collectively each SAS extended chip, described backboard also includes the male seat of CPCI adapter, for carrying out grafting with the female seat of the CPCI adapter on mainboard, described CPCI adapter includes power connector and communications connectors.

Wherein in an embodiment, described monitoring backboard includes ATX power interface, described management control chip is electrically connected with by the power supply of described ATX power interface with server, power consumption demand for all hard disks of anticipation storage server monitoring backboard grafting, and corresponding power consumption information is sent to described power supply, for described power supply, output is adjusted.

Wherein in an embodiment, described monitoring backboard also includes the LCD MODULE being electrically connected with described management control chip, described management control chip is additionally operable to monitor the duty of described power supply, and output status signal gives described LCD MODULE to show the duty of described power supply.

Wherein in an embodiment, described monitoring backboard also includes the light emitting diode that reports an error, the described light emitting diode that reports an error is electrically connected with described management control chip, and described management control chip is reported to the police by the flickering of light emitting diode that report an error described in control when hard disk exception being detected；It is equal that the quantity of the described light emitting diode that reports an error connects quantity with the maximum hard disk that described storage server monitoring backboard is supported, each light emitting diode correspondence that reports an error represents the malfunction of a hard disk.

Wherein in an embodiment, described cabinet is that plug-in stores machine box for server, including chassis body, mainboard installation portion and multiple hard-disc fetching box, described chassis body includes chassis body is divided into the anterior backboard installing frame with cabinet rear portion of cabinet, described backboard installing frame is used for installing described monitoring backboard, the plurality of hard-disc fetching box is drawer-type structure and is installed on described cabinet front portion, described mainboard installation portion includes mainboard loading plate, cabinet back panel and two floors, described mainboard loading plate and cabinet back panel are mutually connected vertically, two floors are located at described mainboard loading plate and cabinet back panel both sides, and it is perpendicular to described mainboard loading plate and cabinet back panel, use, between described mainboard installation portion and chassis body, the structure being slidably connected.

Wherein in an embodiment, described chassis body also includes the power supply holding part being positioned at described cabinet rear portion, for the power supply of installation of modular.

Wherein in an embodiment, described chassis body also includes cover plate, base plate, the first side plate and the second side plate, described first side plate and the second side plate be arranged in parallel with floor, described base plate is used for supporting described mainboard installation portion, described cover plate is covered on above described mainboard installation portion, the outer wall of described first side plate, described power supply holding part and the first side plate one side in opposite directions is close to a floor respectively and is provided with limit for height part, the position of the mainboard installation portion slided in being limited in described chassis body.

Wherein in an embodiment, described hard-disc fetching box includes hard disk bracket, buckle button and pull handle, described pull handle and buckle button expose to the front of described chassis body, and described pull handle is engaged by described buckle button, and outwards ejects when buckle button is pressed.

Wherein in an embodiment, described hard disk bracket is provided with block tongue and offers multiple screw in both sides.

Wherein in an embodiment, described backboard installing frame is the frame structure of central hollow.

Above-mentioned plug-in storage server, the CPCI adapter using military project level replaces cable to connect, simplify casing structure, optimize the quality of connection of adapter, make complete machine connection wire cable seldom even wholly without connecting cable, thus improve the stability of server, reliability greatly, and complete machine is the most attractive in appearance, attended operation is simple, it is not necessary to pay special attention to tear other adapters in maintenance process and cause parafunctional problem.A unified control platform is built by management control chip, make every SAS extended chip reading, perform, the order such as operation all realizes by controlling platform, platform is further according to the logical order of data, SAS interface Unified number to each connection, sequentially perform, it is achieved centralized management and the unified operation to scattered SAS extended chip.

Accompanying drawing explanation

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, in describing embodiment below, the required accompanying drawing used is briefly described, apparently, accompanying drawing in describing below is only embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain the accompanying drawing of other embodiments according to these accompanying drawings.

Fig. 1 is the structure chart of plug-in storage server in an embodiment；

Fig. 2 is the structural representation of hard-disc fetching box in an embodiment；

Fig. 3 is the partial schematic diagram under pull handle ejection state of the hard-disc fetching box shown in Fig. 2；

Fig. 4 is the structure chart of plug-in storage server in another embodiment；

Fig. 5 is the view of another angle of the cabinet of the storage server of plug-in shown in Fig. 4；

Fig. 6 is the partial enlarged drawing of a-quadrant in Fig. 5；

Fig. 7 is the storage server of plug-in shown in Fig. 4 structure chart in mainboard installation portion pull-out state；

Fig. 8 is the rear view of the storage machine box for server of plug-in shown in Fig. 4；

Fig. 9 is the structure chart of mainboard in an embodiment；

Figure 10 is the structure chart monitoring backboard in an embodiment；

Figure 11 is the circuit theory diagrams monitoring back board part circuit structure in an embodiment；

Figure 12 is power connector and the structure chart of communications connectors in an embodiment；

Figure 13 is the structure chart of communications connectors male seat in an embodiment；

Figure 14 is the structure chart of communications connectors female seat in an embodiment；

Figure 15 is the structure chart of power connector male seat in an embodiment；

Figure 16 is the structure chart of power connector female seat in an embodiment.

Detailed description of the invention

For the ease of understanding this utility model, below with reference to relevant drawings, this utility model is described more fully.Accompanying drawing gives first-selected embodiment of the present utility model.But, this utility model can realize in many different forms, however it is not limited to embodiment described herein.On the contrary, providing the purpose of these embodiments is to make to disclosure of the present utility model more thoroughly comprehensively.

It should be noted that be referred to as " being fixedly arranged on " another element when element, it can be directly on another element or can also there is element placed in the middle.When an element is considered as " connection " another element, and it can be directly to another element or may be simultaneously present centering elements.Term as used herein " vertical ", " level ", " on ", D score, "left", "right", " horizontal ", " erecting " and similar statement for illustrative purposes only.

Unless otherwise defined, all of technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present utility model are generally understood that.It is intended merely to describe the purpose of specific embodiment at term used in the description of the present utility model herein, it is not intended that in limiting this utility model.Term as used herein " and/or " include the arbitrary and all of combination of one or more relevant Listed Items.

This utility model provides a kind of plug-in storage server, including the mainboard 200 in cabinet, cabinet and the monitoring backboard 100 in cabinet.

Fig. 1 is the structure chart of plug-in storage server in an embodiment.Cabinet includes chassis body 10, mainboard installation portion 20 and multiple hard-disc fetching box 30.Chassis body 10 includes being divided into cabinet anterior 11 and the backboard installing frame 12 at cabinet rear portion 17, and backboard installing frame 12 is for installing the monitoring backboard 100 (not indicating in Fig. 1) being extended hard disk and controlling.Multiple hard-disc fetching boxes 30 for drawer-type structure and are installed on cabinet front portion 11.Mainboard installation portion 20 includes mainboard loading plate 22, cabinet back panel 24 and two floors 26.It is pointed out that in Fig. 1, mainboard loading plate 22 is blocked by mainboard 200 (not indicating in Fig. 1), thus the most invisible.Mainboard loading plate 22 and cabinet back panel 24 are mutually connected vertically, L-shaped structure, and two floors 26 are located at mainboard loading plate 22 and cabinet back panel 24 both sides and are perpendicular to mainboard loading plate 22 and cabinet back panel 24.Mainboard installation portion 20 and chassis body 10 are for being slidably connected, to coordinate the connected mode of plug-in between mainboard and backboard.

Fig. 9 is the structure chart of mainboard 200 in an embodiment, and Figure 10 is the structure chart monitoring backboard 100 in an embodiment.Mainboard 200 is arranged in a mutually vertical manner with monitoring backboard 100, carries out grafting by compact external components interconnection standard interface (CPCI) adapter between mainboard 200 and monitoring backboard 100.The female seat of CPCI adapter is located on mainboard 200, and the male seat of CPCI adapter is located on monitoring backboard 100.CPCI adapter includes power connector and communications connectors, and in Fig. 9 and embodiment illustrated in fig. 10, the quantity of power connector is 2, including power connector female seat 222 and power connector male seat 122；The quantity of communications connectors is 1, including communications connectors female seat 232 and communications connectors male seat 132.

Monitoring backboard 100 includes multiple hard-disk interface 150 (in the present embodiment for the SATA interface of SAS standard), and every piece of hard disk of server is plugged on a hard-disk interface 150.In the present embodiment, monitoring backboard 100 includes 4 serial connecting small computer system interface (SAS) extended chips 110, for realizing the extension of hard disk, controlling and manage, each SAS extended chip 110 is electrically connected with 4 hard-disk interfaces 150 and controls it, and monitoring backboard 100 arranges 16 hard-disk interfaces 150 altogether.Monitoring backboard 100 also includes managing control chip 140, for being managed collectively each SAS extended chip.

Above-mentioned plug-in storage server, the CPCI adapter using military project level replaces cable to connect, simplify casing structure, optimize the quality of connection of adapter, make complete machine connection wire cable seldom even wholly without connecting cable, thus improve the stability of server, reliability greatly, and complete machine is the most attractive in appearance, attended operation is simple, it is not necessary to pay special attention to tear other adapters in maintenance process and cause parafunctional problem.In addition SAS extended chip 110 and hard-disk interface 150 are set on monitoring backboard 100, realize the hot plug of hard disk, therefore cabinet have employed that mainboard installation portion 20 is slidably connected with chassis body 10, hard-disc fetching box 30 is the structure of drawer type, has reached easy-disassembling-assembling effect accordingly.

Wherein in an embodiment, communications connectors is used for transmitting PCI-E bus signals.In other embodiments, mainboard can also use other bus, and communications connectors transmits other bus signals accordingly.

Figure 12 is the structure chart of power connector and communications connectors, and Figure 13 is the structure chart of communications connectors male seat 132, and Figure 14 is the structure chart of communications connectors female seat 232.In Figure 13, embodiment illustrated in fig. 14, the pin of communications connectors include 22 row 5 row signal pins and 44 lower margins, the material of its middle shell is thermoplastic polyester, and the material of pin is copper alloy.Figure 15 is the structure chart of power connector male seat 122, and Figure 16 is the structure chart of power connector female seat 222.In Figure 15, embodiment illustrated in fig. 16, the number of pins of power connector is 8, and the material of its middle shell is high-temperature resistance plastice, and the material of pin is copper alloy.

Figure 11 is the circuit theory diagrams monitoring backboard 100 part circuit structure in an embodiment.In this embodiment, SAS extended chip 110 uses the 88SE9215 chip of Marvell company, can also use other chips with identical function in other embodiments.4 SAS extended chips 110 are the most independent, are an entirety by management 4 SAS extended chips of control chip 140 control combination 110, disperse independence at physically 4 SAS extended chips 110, system are unified consistent management.

Management control chip 140 coordinates software programming to realize the condition managing of complete machine.Particular by writing chip bottom code, build a unified control platform, make every SAS extended chip 110 reading, perform, the order such as operation all realizes by controlling platform, platform is further according to the logical order of data, SAS interface Unified number to each connection, sequentially perform, it is achieved centralized management and the unified operation to scattered SAS extended chip 110.

Seeing Figure 11, monitoring backboard 100 also includes the LED that reports an error being electrically connected with management control chip 140.Management control chip 140 is reported to the police by control the flickering of LED that report an error when hard disk exception being detected.Such as when hard disk normally works normal luminous, extinguishes/flicker during hard disk failure.Wherein in an embodiment, can be that each hard disk is equipped with the LED that reports an error, the quantity of the LED that i.e. reports an error be equal with the quantity of hard-disk interface 150, and such as 16 hard-disk interfaces join 16 LED that report an error.In the case of the hard disk supported at monitoring backboard 100 is a fairly large number of, it is also possible to multiple LED of reporting an error composition can be shown the display screen of letter and number, illustrated the operation irregularity of hard disk by corresponding fault numbering.

Wherein in an embodiment, management control chip 140 uses PIC18F44K22 chip, can also use other chips with identical function, such as other ARM chips in other embodiments.

In the embodiment shown in fig. 10, monitoring backboard 100 also includes ATX power interface 130.Use ATX custom technology, meet ATX2.0 industry standard.Management control chip 140 is electrically connected with by the power supply of ATX power interface 130 with server, power consumption demand for all hard disks of anticipation backboard 100 grafting, and corresponding power consumption information is sent to the control part of power supply, output can be adjusted by the control part of power supply source in time, it is ensured that the normal work of load.

See Figure 11, monitoring backboard 100 also includes the LCD MODULE being electrically connected with management control chip 140, management control chip 140 is additionally operable to monitor the duty of power supply, and output status signal checks the duty of power supply to LCD MODULE for user.

In the embodiment shown in fig. 11, monitoring backboard 100 also includes the power supply alarming input/output interface (power supply alarming I/O) being electrically connected with management control chip 140, for out-put supply alarm signal.

In the embodiment shown in fig. 11, monitoring backboard 100 also includes DC-DC module, pulse width modulation (PWM) technology is used respectively the unidirectional current that power supply exports to be converted into 5V, the unidirectional current of 30A, and it is converted into the unidirectional current of 3.3V, 30A, then by 3.3V, the unidirectional current of 30A is converted into the unidirectional current of 1.8V and 1.0V the most respectively, effectively controls the output timing of voltage.

In the embodiment shown in fig. 1, owing to monitoring backboard 100 wants grafting mainboard 200 towards the one side hard disk to be connected of cabinet front portion 11, the one side towards cabinet rear portion 17, therefore backboard installing frame 12 is the central hollow frame structure of " mouth " font.

Fig. 2 is the structural representation of hard-disc fetching box 30 in an embodiment.Hard-disc fetching box 30 includes hard disk bracket 32, buckle button 34 and pull handle 36.Pull handle 36 and buckle button 34 expose to the front of chassis body 10.Please with reference to Fig. 3, pull handle 36 is snapped button 34 and engages time flat, and (i.e. the side that in Fig. 2 and Fig. 3, the vertex angle on buckle button 34 is pointed to) outwards ejects when being pressed on the right side of buckle button 34, user can catch pull handle 36 to extract hard-disc fetching box 30 out cabinet, thus installs/unload hard disk.With reference to Fig. 2, hard disk bracket 32 offers multiple screw 31 in both sides, is fixed on hard disk bracket 32 by hard disk through screw 31 by screw when installing hard disk, pushes back in chassis body 10 by hard-disc fetching box 30 after completing, and pull handle 36 is pressed back in situ, make buckle button 34 be engaged.With reference to Fig. 2, hard disk bracket 32 being additionally provided with the block tongue 33 that tool is elastic, after hard-disc fetching box 30 is pushed into chassis body 10, block tongue 33 is compacted thus formed fixing.

Seeing Fig. 9, mainboard 200 is provided with CPU socket 210, memory bank 240 and PCI-E slot 260, and mainboard 200 is also integrated with South Bridge chip 250.

In the embodiment shown in fig. 1, chassis body 10 also includes the power supply holding part 171 being positioned at cabinet rear portion 17, for the power supply of installation of modular.

Fig. 4 is the structure chart of chassis body in another embodiment, and it is only different at the structure that some are trickle with embodiment illustrated in fig. 1.In the embodiment shown in fig. 4, chassis body 10 also includes cover plate 16, base plate 18 (not showing in Fig. 4), the first side plate 14 and the second side plate 15.First side plate 14 and the second side plate 15 be arranged in parallel with floor 26, and base plate 18 is used for supporting mainboard installation portion 20 (not indicating in Fig. 4), is blocked (can be referring to Fig. 7) by mainboard installation portion 20 in Fig. 4.Cover plate 16 is covered on above mainboard installation portion 20.Two floors 26 of mainboard installation portion 20 are close to the first side plate 14 and power supply holding part 171 and the outer wall 172 of the first side plate 14 one side in opposite directions respectively, and on the first side plate 14 and are equipped with limit for height part 142 on this outer wall 172.Owing to two floors 26 of mainboard installation portion 20 are sandwiched by the first side plate 14 and outer wall 172 respectively, therefore the position that mainboard installation portion 20 is horizontal is defined, again by base plate 18 and the limit for height part 142 of top of lower section, mainboard installation portion 20 position in the vertical can be limited again, therefore mainboard installation portion 20 can keep rectilinear movement when passing in and out chassis body 10, the most smooth and easy during dismounting.

In the embodiment shown in fig. 4, chassis body 10 also includes the bracing piece 19 connecting the first side plate 14 and outer wall 172, for reinforcing the overall structure of chassis body 10, and plays a supportive role cover plate 18.

In the embodiment shown in fig. 4, plug-in storage machine box for server also includes the front being located at chassis body 10 and respectively close to the first side plate 14 and each handle 40 of the second side plate 15, pulls out/push server for plug-in is stored machine box for server entirety.In the present embodiment, shake hands as stainless steel.Refer to Fig. 5, plug-in storage server is also provided with cabinet slide rail set 50 on the second side plate 15 so that plug-in storage machine box for server can pull out/push server swimmingly.

Fig. 6 is the partial enlarged drawing of a-quadrant in Fig. 5, in this embodiment, the front of chassis body 10 is additionally provided with switchboard assembly, including on and off switch 51, hard disk indication lamp 52, two LAN (LAN) display lamps 53, two USB display lamps 54, alarm lamps 55.

Seeing Fig. 4, cabinet back panel 24 is being provided with two radiator fans 60 towards the side within chassis body 10；Please also refer to Fig. 7, cabinet back panel 24 offers air inlet 246 accordingly.It is additionally provided with fastener 242 on mainboard installation portion 20, when needs attaching/detaching mainboard, first cover plate 16 is unloaded, pull fastener 242 the most backward, then mainboard installation portion 20 is pulled back.

Fig. 8 is the rear view of the storage machine box for server of plug-in shown in Fig. 4.Being provided with power supply 70 in power supply holding part 171, cabinet back panel 24 is provided with SR 61,62, two LAN (LAN) network interfaces 63 of power supply indicator, USB2.0 interface 64, USB3.0 interface 65, serial line interface 66 and digital visual interface (DVI) 67.

The cabinet of above-mentioned plug-in storage server achieves modularity on the whole, including power module, mainboard module, monitors rear panel module, hard disk modularized package.Modular use, makes structure more simplify, and radiating effect is good, is convenient for changing, conveniently keeps in repair, decreases the trouble point of total system.Use without the connected mode of cable, it is achieved plate to plate (mainboard 200 is to monitoring backboard 100) to slotting, more stable, more reliable.Stable, reliable, safe, shockproof, attractive in appearance.

Embodiment described above only have expressed several embodiments of the present utility model, and it describes more concrete and detailed, but therefore can not be interpreted as the restriction to this utility model the scope of the claims.It should be pointed out that, for the person of ordinary skill of the art, without departing from the concept of the premise utility, it is also possible to make some deformation and improvement, these broadly fall into protection domain of the present utility model.Therefore, the protection domain of this utility model patent should be as the criterion with claims.

Claims (10)

1. a plug-in storage server, it is characterised in that include the mainboard in cabinet, cabinet and machine Monitoring backboard in case；

Described monitoring backboard is arranged in a mutually vertical manner with mainboard, and described monitoring backboard includes multiple hard-disk interface, many Individual SAS extended chip and management control chip, each hard-disk interface and a SAS extended chip are electrically connected with, Described hard-disk interface is used for connecting hard disk, described SAS extended chip for realize the extension of hard disk, control and Management, described management control chip is for being managed collectively each SAS extended chip, and described backboard is also Including the male seat of CPCI adapter, carry out grafting for the female seat with the CPCI adapter on mainboard, described CPCI adapter includes power connector and communications connectors.

Plug-in the most according to claim 1 storage server, it is characterised in that described monitoring backboard Including ATX power interface, described management control chip is by the power supply of described ATX power interface with server It is electrically connected with, for the power consumption demand of all hard disks of anticipation storage server monitoring backboard grafting, and by phase The power consumption information answered is sent to described power supply, is adjusted output for described power supply.

Plug-in the most according to claim 1 storage server, it is characterised in that described monitoring backboard Also including the LCD MODULE being electrically connected with described management control chip, described management control chip is also used In the duty of the described power supply of monitoring, and output status signal gives described LCD MODULE described with display The duty of power supply.

Plug-in the most according to claim 1 storage server, it is characterised in that described monitoring backboard Also include the light emitting diode that reports an error, described in report an error light emitting diode and described management control chip be electrically connected with, Described management control chip is flickering by the light emitting diode that reports an error described in control when hard disk exception being detected Report to the police；The maximum that the quantity of the described light emitting diode that reports an error is supported with described storage server monitoring backboard It is equal that hard disk connects quantity, and each light emitting diode correspondence that reports an error represents the malfunction of a hard disk.

Plug-in the most according to claim 1 storage server, it is characterised in that described cabinet is slotting Pull out formula storage machine box for server, including chassis body, mainboard installation portion and multiple hard-disc fetching box, described Chassis body includes chassis body is divided into the anterior backboard installing frame with cabinet rear portion of cabinet, described backboard Installing frame is used for installing described monitoring backboard, and the plurality of hard-disc fetching box is drawer-type structure and is installed on institute Stating cabinet anterior, described mainboard installation portion includes mainboard loading plate, cabinet back panel and two floors, institute State mainboard loading plate and cabinet back panel be mutually connected vertically, two floors be located at described mainboard loading plate and Cabinet back panel both sides and be perpendicular to described mainboard loading plate and cabinet back panel, described mainboard is installed The structure being slidably connected is used between portion and chassis body.

Plug-in the most according to claim 5 storage server, it is characterised in that described chassis body Also include the power supply holding part being positioned at described cabinet rear portion, for the power supply of installation of modular.

Plug-in the most according to claim 5 storage server, it is characterised in that described chassis body Also include cover plate, base plate, the first side plate and the second side plate, described first side plate and the second side plate and floor Be arrangeding in parallel, described base plate is used for supporting described mainboard installation portion, and described cover plate is covered on described mainboard and installs Above portion, the outer wall of described first side plate, described power supply holding part and the first side plate one side in opposite directions is close to respectively One floor and be provided with limit for height part, the position of the mainboard installation portion slided in being limited in described chassis body.

Plug-in the most according to claim 5 storage server, it is characterised in that described hard disk abstraction Box includes that hard disk bracket, buckle button and pull handle, described pull handle and buckle button expose to described chassis body Front, described pull handle is engaged by described buckle button, and outwards ejects when buckle button is pressed.

Plug-in the most according to claim 8 storage server, it is characterised in that described hard disk bracket It is provided with block tongue in both sides and offers multiple screw.

Plug-in the most according to claim 5 storage server, it is characterised in that described backboard is pacified Frame up the frame structure for central hollow.