KR20030025693A - Hot-swap ide backplane board - Google Patents

Abstract

PURPOSE: A Hot-Swap IDE RAID backplane board is provided to support an ultra DMA/ATA - 100MB/sec and to supply a bridge board comprising a socket type connector capable of connecting a backplane board for supporting a transmitting speed of 100MB/sec with an IDE disk. CONSTITUTION: A plurality of SCA-2(Single Connector Attachment-2, which is 80-pin disk connector) inputs the first power voltage and the second power voltage, and constitutes various kinds of signals being inputted/output to a computer system and the first and second power voltages as a pair. The SCA-2 is combined to a power of a hard disk and a signal connector. A pair of FETs(Field Effect Transistor,14,16) are connected between power pins of the 80-pin disk connector. The FET(14,16) supplies the first power voltage and the second power voltage to a corresponding dick connector by responding to a switching control signal being inputted to a control terminal. A controller(EPLD: Embedded Programmable Array Logic,18) inputs presence signals being supplied from the hard disk and controls a switching of the FET(14,16) connected to the SCA-2 which mounts or dismount the hard disk in accordance with a presence signal being generated from a corresponding hard disk.

Description

Hot-Swap ID Laid Backplane Board {HOT-SWAP IDE BACKPLANE BOARD}

TECHNICAL FIELD The present invention relates to a backplane board of a computer system, and in particular, a hot-swap IDE RAID backplane and bridge board (Hot-Swap IDE Backplane) that supports Ultra DMA (AT) / AT Attachment (ATA) -100. and Bridge board).

Data mass storage media mounted on systems such as computers, for example, HDD (Hard Disk Driver) interface is divided into IDE (Integrated Device Electronics) and SCSI (standard PC interfaces). The maximum transfer speed of general IDE is 33MB / sec. IDE type HDD interface as described above is to be coupled to the 40-pin input connector (40P input connector) and 80-pin disk connector (80P disk connector) connected to the IDE hard disk. The conventional IDE backplane board coupled by the IDE method includes an IDE bridge board having a 40-pin input connector, an 80-pin disk connector, and a 4-pin power cable connector for connecting a power supply with a hard disk as described above. It is designed to be coupled to the hard disk and backplane of the system.

However, since the maximum speed of the IDE type disk backplane is limited to 66MB / sec, there is a problem that it cannot be used as an interface of a hard disk having a high seek time and a high data transfer speed. For example, hard disks transferring at 100 MB / sec are currently emerging, but such IDE disk backplanes cannot interface with them. In addition, the IDE RAID controller card (IDE RAID controller card) attached to the computer system did not provide a hot-swap function when configuring the IDE RAID, it was not possible to remove / install the disk in the power-on state.

Accordingly, an object of the present invention is to provide a hot-swap IDE RAID backplane board supporting Ultra DMA / ATA-100MB / sec.

Another object of the present invention is to provide a bridge board configured as a socket type connector to connect a backplane board and an IDE disk supporting 100MB / sec transfer rate.

Another object of the present invention is to provide an ultra IDE memory access disk backplane capable of supporting 100 MB / sec transfer speed and providing hot-swap and RAID functions.

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a backplane of a computing system including a first power supply and a second power supply having different voltage levels and at least one hard disk for generating a presence signal. A plurality of SCA-2 connectors configured to pair two power supply voltages, each of the various signals input and output to the system and the first and second power supply voltages in pairs and coupled to the power and signal connectors of the hard disk; A pair connected between the first power supply and the second power supply voltage and the power pins of the 80-pin disk connectors, and supplying the first and second power supplies to the corresponding disk connectors in response to a switching control signal input to a control terminal. A switching element and a pair of presence signals supplied from the hard disks and connected to SCA-2 connectors to which the hard disk is detached / mounted. And it characterized by a controller for controlling in accordance with a presence signal generated by the switching of the switching element from the hard disk.

1 is a schematic diagram of a hot-swap ID backplane board constructed in accordance with a preferred embodiment of the present invention.

2 is a schematic diagram of a hot-swap ID backplane bridge board constructed in accordance with a preferred embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, in the following description of the present invention, it should be noted that a detailed description of a function or configuration for a known technical configuration may be omitted if it is determined that the present invention may unnecessarily obscure the subject matter of the present invention.

1 is a schematic diagram of an ultra direct memory access backplane board supporting hot-swap configured in accordance with a preferred embodiment of the present invention.

In FIG. 1, reference numeral 10 denotes a 40-pin input connector connected to an IDE hard disk (hereinafter referred to as a "disk"), and 12 denotes an 80-pin disk connector (hereinafter, referred to as a connector) connected to the system's motherboard to input and output various signals supplied therefrom. "Disc connector"). As an example of the connector 12, a standardized single connector attachment-2 (SCA-2) may be used. Many of these disk connectors 12 are connected in parallel.

Reference numerals 14 and 16 shown in FIG. 1 are a pair of Field Effect Transistors (hereinafter referred to as "FETs"), which are lines of the first and second supply voltages Vdd and Vcc and the disk connectors 12 in the system. Are connected between the power supply input pins of the power supply pins, and are turned on / off by a switching control signal input to each control terminal to switch the first and second power supply voltages Vdd and Vcc. Here, the first power supply voltage Vdd is a DC voltage of 12 volts, and Vcc is a DC voltage of 5 volts.

As described above, the first and second power supply voltages Vdd and Vcc through the pair of FETs 14 and 16 are provided to the hard disk through the disk connectors 12 and the input connector 10. Eight pins of the disk contactor 12 are allocated to interface the first power supply voltage Vdd and the second power supply voltage Vcc to another external place. For example, the hot and ground voltages of the first and second power supply voltages are supplied to two signal lines, respectively, and this technical configuration will be more clearly understood by the configuration of FIG. 2 to be described later. .

Control signals provided to the control terminals of the FETs 14 and 16 are output from a controller designed to control a hard disk, for example, an embedded programmable array logic (EPLD) 18. The EPLD 18 generates a switching control signal according to the presence signal PS generated from the hard disk when the hard disk is mounted or mounted on the corresponding disk connector 12. The number of the presence signals PS is input to the EPLS 18 as many as the number of RAID-configured disks.

The EPLD 18 selectively controls a pair of FETs 14 and 16 connected to the plurality of disk connectors 12 according to the state of the presence signal PS generated from each disk, and is supplied to each disk through the corresponding disk connector 12. The power supply voltages Vdd and Vcc are turned on / off. In addition, the EPLD 18 sequentially switches each of the FETs 14 and 16 connected to the plurality of disk connectors 12 so as not to overload the RAID-configured disks in an instant when a power-on voltage is initially applied to the system. Supply the power supply voltage sequentially.

As described above, the IDE RAID backplane according to the present invention enables a hot-swap function by using a bridge board configured as shown in FIG. 2. 1 is currently configured such that four bridge boards are connected in parallel to interface four IDE hard disks. When the RAID is configured in the backplane board as described above, the RAID level may be configured as “0”, “1”, “0 + 1”, or “5”.

When designing the ultra DMA board as shown in FIG. 1, the ground signal must be reinforced in accordance with the specifications of the ultra DMA / ATA-100 so that the ground signals can be transmitted in pairs for each signal line. It should be 100 mil to supply power stably.

2 is a schematic diagram of a hot-swap ID backplane bridge board constructed in accordance with a preferred embodiment of the present invention. In FIG. 2, reference numeral 20 denotes a bridge board having a power supply and signal integrated connector 22 in addition to the disk connector 14 shown in FIG. 1, and includes a 4-pin power connector 24 and a 40-pin signal connector 26. At this time, the power connector 24 and the signal connector 26 is formed of a socket type. Each pin of the 4-pin power connector 24 is connected to a disk connector 14 composed of SCA-80 pins through a pair of power cables 28 set to 100 mils.

Reference numeral 32 denotes an IDE hard disk, to which a power and signal integrated connector 34 is attached. The power supply and signal integrated connector 34 also includes a 4-pin power connector 36 and a 4-pin signal connector 38 that are integrated into a socket type. The power and signal integrated connector 34 connected to the IDE hard disk 32 and the power and signal integrated connector 22 of the bridge board 20 are coupled in a socket type. The reason why the cable connector connecting bridge board 18 and disk 16 as 80 pin is used as above to reinforce the ground of each signal line to meet the specification of Ultra DMA / ATA-100. To remove it. In addition, the power connector 22 on the bridge board 18 is also connected to the power connector 28 to be coupled to the hard disk 16 via a power cable set to 100 mils.

As mentioned above

As described above, the present invention combines the connection between the SCA-80 pin connector and the IDE hard disk and the bridge board by the connector integrated into the socket type, and the power supplied to each hard disk to remove / attach the hard disk The configuration of the hot-swap slave can be facilitated by controlling by the presence signal indicating.

Claims (3)

A backplane of a computing system comprising a first power supply and a second power supply having different voltage levels and at least one hard disk for generating a presence signal, A plurality of SCA- which inputs the first and second power supply voltages, each of the various signals inputted and outputted to the system and the first and second power supply voltages are paired and coupled to the power and signal connectors of the hard disk. With 2 connectors, A pair connected between the first power supply and the second power supply voltage and the power pins of the 80-pin disk connectors, and supplying the first and second power supplies to the corresponding disk connectors in response to a switching control signal input to a control terminal. With switching elements, Input the presence signals provided from the hard disks, and control the switching of a pair of switching elements connected to the SCA-2 connectors to which the hard disk is detached / mounted according to the presence signal generated from the hard disk. Hot-swappable IDE RAID backplane board with configuration including controller. 2. The controller of claim 1, wherein the controller sequentially controls a pair of switching elements connected to the plurality of SCA-2 connectors when the power-on is used, so that power supplied to the plurality of hard disks is supplied at different periods. Hot-swappable IDE RAID backplane board. According to claim 1 or 2, wherein the power connector for supplying the first and second power to the hard disk, and the SCA-2 connector for transmitting a variety of signals input and output to the hard disk to the first line; A hot-swap IDE RAID backplane board, characterized in that a power connector for inputting first and second power supplies and a signal connector for inputting and outputting various signals are mounted on a bridge board including a power supply and signal connector integrated in a socket type.