CN1972315A - USB virtual media system for blade server - Google Patents

Abstract

This invention relates to one USB virtual media system for knife blade servo, wherein, management module is set with network interface and USB interface for virtual mapping connection and the computer blade is connected to management USB interface through switch system; management module and 12C bus interface I/O expensive chip are connected through 12C bus and its I/O expensive chip and switch chip are connected through control signal; the management module controls 12C bus interface I/o expensive chip.

Description

A kind of blade servo USB virtual media system that is applied to

Technical field

The invention provides a kind of virtual media system of USB shared medium system, especially blade servo USB.

Background technology

In some applications of blade server, calculating blade (blade) needs the Ethernet (Ethemet) of frequent utilization oneself to communicate by letter with the external world on the one hand through switch, also will communicate by letter with other calculating blade on the other hand at present.Calculate the Ethernet of blade (blade) and the operation that switch is usually loaded greatly, the hard work amount has caused the switching delay of data, has influenced the operational efficiency of system.In order to improve the efficient of blade server network service, often adopt the higher network technology of transmission rate at present, as ten thousand mbit ethernet technology, infinite bandwidth technology (Infiniband technology), but this can bring the raising of cost.

In order to utilize the machine room space fully, equipment in the machine room is often more crowded, although the calculating blade (blade) of blade server leaves the USB CD-ROM drive mouth and the floppy drive mouth of install software, the restriction in space is inserted USB device to administrative staff and has been caused great difficulty.And sometimes, the operating room at administrative staff place and machine room have some distances, and administrative staff do not want to enter copy and the installment work that machine room is engaged in software.

Summary of the invention

In order to eliminate above-mentioned shortcoming, the invention provides a kind of blade servo USB virtual media system that is applied to.

In order to realize the technical solution adopted in the present invention: a kind of blade servo USB virtual media system that is applied to, administration module is provided with network interface and USB mouth, the USB mouth of administration module carries out virtual mapping with network interface and is connected, and calculates blade and links to each other with the USB mouth of administration module by switched system.

Described switched system comprises I/O expensive chip, I2C bus, switching chip, control signal wire and the calculating blade of I2C bus interface.

The I/O expensive chip of described administration module and I2C bus interface is communicated with by the I2C bus, and the I/O expensive chip of I2C bus interface and switching chip are communicated with by control signal wire;

Administration module is controlled the I/O expensive chip of I2C bus interface, makes the different value of control signal wire output of its output, forms different array combinations, opens or close corresponding passage to switching chip, selection corresponding calculated machine knife blade connection USB mouth.

Described control signal wire is to be drawn by the I/O expensive chip of I2C bus interface, is used for controlling the gating that switches chip, control corresponding signal line break-make.

The function that chip is switched in described control is the holding wire of this chip of control.

Described administration module is provided with network interface and USB mouth, and the USB mouth of administration module carries out virtual mapping with network interface and is connected, and calculates blade and links to each other with the USB mouth of administration module by switched system;

The I/O expensive chip of administration module and I2C bus interface is communicated with by the I2C bus,

The I/O expensive chip of I2C bus interface and switching chip are communicated with by control signal wire; Administration module is controlled the I/O expensive chip of I2C bus interface, makes the different value of control signal wire output of its output, forms different array combinations, opens or close corresponding passage to switching chip, selection corresponding calculated machine knife blade connection USB mouth;

Control signal wire is to be drawn by the I/O expensive chip of I2C bus interface, is used for controlling the gating that switches chip, control corresponding signal line break-make;

The function that chip is switched in control is the holding wire of this chip of control.

In sum, advantage of the present invention: adopt existing system resource, by the USB function, under unfavorable situation with the Internet resources that calculate blade and the network switch, and shared a part of network task that calculates the blade and the network switch, alleviate the network service task amount of blade system, improved the operating efficiency of network exchange.

Can also realize long-rangely carrying out the copy and the installation of software, can make administrative staff need not run into machine room the installment work of software is normally carried out calculating blade.And as long as available media resource is arranged on the network it just can be virtualized into the USB resource of calculating blade and is used the convenience of ten minutes.

By its switched system, make in the blade server each calculate blade and can utilize resource on the network.

Description of drawings

Fig. 1 is a configuration diagram of the present invention.

Wherein: the MM-administration module, I2C BUS-I2C bus, the I/O expensive chip of I2C I/O Expander-I2C bus interface, S0, S1, S2, S3, S4-control signal wire, Blade 1, Blade 2, Blade 3, Blade 4, Blade 5, Blade 6, Blade 7, Blade 8, Blade 9, Blade10-calculate blade, Ya, Yb, USB pair-differential signal line, A0, A1, B0, B0-switch the passage of chip, Switch chips-switches chip, the 1-network interface, the 2-USB mouth.

Embodiment

The invention provides a kind of blade servo USB virtual media system that is applied to.Be referred to as USBVirtual Media[USB virtual media medium] technology, be applied on the blade server.It is made of 2 parts, and a part is the virtual mapping connection of administration module USB function to the administration module network function; Another part is to calculate the switched system of blade to administration module USB, by switched system, can make any one calculate blade (in Fig. 1, blade server is 10 and calculates blade) and link to each other with administration module USB.It is a kind of technology of calculating the blade USB device that media resource on the network is invented.

Operation principle: on the one hand administration module MM need be connected on its usb bus the media information on the network is virtual by network interface, and this needs general programmer to write software just can to realize.Utilize switched system to use needs the calculating blade of this function to switch on the usb bus of administration module on the other hand, connect.

Virtual Media switched system operation principle: as shown in Figure 1, administration module MM is by the I/O expensive chip of the total line traffic control I2C bus interface of I2C, make its output 5 control signal wire S0, S1, S2, S3, S4, export different values, form different array combinations, open or close corresponding passage thereby switch chip, reach the purpose of selecting the corresponding calculated blade to connect USB 5.

Table 1 is a USB virtual media gating correspondence table, under different S0, S1, S2, S3, the S4 combined value situation, calculates the corresponding form of blade gating USB.

USB_SM Select Table
							S0	S1	S2	S3	S4
Blade 1	0	x	0	0	0
						Blade 2	1	x	0	0	0
Blade 3	0	X	1	0	0
						Blade 4	1	X	1	0	0
Blade 5	x	0	0	1	0
						Blade 6	x	1	0	1	0
Blade 7	X	0	1	1	0
						Blade 8	X	1	1	1	0
Blade 9	X	x	X	0	1
						Blade 10	X	x	x	1	1

Table 1USB virtual media gating correspondence table

X in the table represent to get 0 or get 1 can, Sx (representing among S0, S1, S2, S3, the S4 one of them) is 0 o'clock, Ya=A0, Yb=B0, Sx are 1 o'clock, Ya=A1, Yb=B1, the wherein situation of Blade1 gating USB mouth: when S0=0, the 0th what switch chip output is the holding wire of blade1 and blade3, respectively corresponding Ya, Yb; When s2=0, only connected the Ya signal that switches chip output from the 0th, it is the blade1 signal, the blade3 signal shielding has been fallen, also connected certainly from the 1st switching chip signal output, because s1=x, so that might connect is blade5, blade6, blade7, any one signal among the blade8; When s3=0, connected bladel signal and blade9 signal, shielded fully from the 1st and switched chip signal output, that is to say no matter the value of s1 be 0 still be 1 all can, represent with s1=x; When s4=0, only connected the bladel signal, and shielded the blade9 signal.Therefore reached the selection of having only blade1 to use the USB mouth.

The situation of other blade gating USB mouth is S0 in like manner, the value difference of S1...S4.

The present invention can be according to the difference of calculating the blade number, and makes and control signal lines number and switch the chip number and change accordingly be not limited in the concrete structure of above-mentioned execution mode.In a word, protection scope of the present invention should comprise conspicuous variation of those of ordinary skills or replacement.

Claims (6)

1. one kind is applied to the blade servo USB virtual media system, it is characterized in that: administration module is provided with network interface and USB mouth, and the USB mouth of administration module carries out virtual mapping with network interface and is connected, and calculates blade and links to each other with the USB mouth of administration module by switched system.

2. according to the described blade servo USB virtual media system that is applied to of claim 1, it is characterized in that: described switched system comprises I/O expensive chip, I2C bus, switching chip, control signal wire and the calculating blade of I2C bus interface.

3. the blade servo USB virtual media system that is applied to according to claim 2,

It is characterized in that: the I/O expensive chip of administration module and I2C bus interface is communicated with by the I2C bus, and the I/O expensive chip of I2C bus interface and switching chip are communicated with by control signal wire;

Administration module is controlled the I/O expensive chip of I2C bus interface, makes the different value of control signal wire output of its output, forms different array combinations, opens or close corresponding passage to switching chip, selection corresponding calculated machine knife blade connection USB mouth.

4. the blade servo USB virtual media system that is applied to according to claim 2,

It is characterized in that: control signal wire is to be drawn by the I/O expensive chip of I2C bus interface, is used for controlling the gating that switches chip, control corresponding signal line break-make.

5. the blade servo USB virtual media system that is applied to according to claim 2,

It is characterized in that: the function that chip is switched in control is the holding wire of this chip of control.

6. one kind is applied to the blade servo USB virtual media system, it is characterized in that: administration module is provided with network interface and USB mouth, and the USB mouth of administration module carries out virtual mapping with network interface and is connected, and calculates blade and links to each other with the USB mouth of administration module by switched system; The I/O expensive chip of administration module and I2C bus interface is communicated with by the I2C bus, and the I/O expensive chip of I2C bus interface and switching chip are communicated with by control signal wire; Administration module is controlled the I/O expensive chip of I2C bus interface, makes the different value of control signal wire output of its output, forms different array combinations, opens or close corresponding passage to switching chip, selection corresponding calculated machine knife blade connection USB mouth;

Control signal wire is to be drawn by the I/O expensive chip of I2C bus interface, is used for controlling the gating that switches chip, control corresponding signal line break-make;

The function that chip is switched in control is the holding wire of this chip of control.