CN1904872A - Network additional storage system chip hardware structure and network system based on the system - Google Patents

Abstract

The invention discloses a network additional storage system chip hardware structure that includes CPU, APB Bridge, DMA controller, memory, and hard disk bus controller that is IDE/ATA controller. The invention also discloses a flow medium system and integrated system based on the network additional storage system chip hardware structure. It could ensure high usability of data. The invention develops a integrated server containing plural service based on the method.

Description

The network attached storage system chip hardware structure reaches the network system based on this system

Technical field

The present invention relates to network attached storage device system, more particularly, relate to a kind of network attached storage system chip hardware structure and based on the network system of this system.

Background technology

Term definition

Before specifying the present invention, at first the technical term that will occur among the present invention is carried out giving a definition:

Embedded: the equipment or the system that possess following characteristics are called embedded: 1. customize at particular task according to user's request, can carry out special function and in this hardware system, be moved the software that solidifies by equipment or system 2. that inner computer is controlled, comprise operating system or software systems (these software systems are at certain class processor compiling) that (and being not limited to) is real-time or non real-time, as the Linux various version, WinCE, VxWorks, Symbian etc., perhaps littler system such as TinyOS, uCOS etc. have special application software on software systems.Object described in the invention possesses such technical characterstic.

Integrated: the huge prospect that the present invention is based on digital home (Digital Home), the network storage (NetworkStorage) and association area, it is integrated to carry out function on existing basis, and the complete product that meets user's request finally can be provided, making does not have the user of specialty and technical background knowledge can enjoy convenient, efficient, novel service yet.For example, Modern Family need store digital photo, image, speech, data such as music, if data centralization storage and management are got up, all fine in efficient and security, integrated NAS terminal will provide unified function, as iTune Server or Xstream Server, and simple operations, and need not professional knowledge (all technology and knowledge are hidden in the black box of terminal), and it is succinct to become from now in the Modern Family appearance, has only several buttons memory device of (comprising power button) (being that an embedded main board is joined a hard disk or a small-sized hard disk battle array for example), and may a new class of household electrical appliances will be become, plug and play, simple to operate, can be connected by the wired mode of Ethernet even wireless mode and home network etc.

NAS terminal: NAS is Network Attached Storage, and the meaning is network attached storage.The NAS terminal is a kind of equipment that has network interface, and network storage function can be provided.In this right invention since on this equipment integrated multiple function, so the application space of kind equipment is greatly improved, be not only the pure one-sided network storage, also comprise based on the network service of storage data etc.It can be used as a node in Intemet or the lan network, and diversified service or application are provided.

Application background

It is the general layout at center that the IT architecture in crowd activity places such as following family, Administrative Area, Internet network will change with the server, and storage system will become the core of IT architecture day by day, and various application are transplanted on the storage system gradually.

The network storage is the technology that has glamour and application prospect, and (Network AttachedStorage: network attached storage) obtain just gradually accepting and popularizing, the large-scale application is about to launch NAS.NAS refers to the network topology structure (for example Ethernet) of memory device by standard is connected on LAN (Local Area Network) or the wide area network.It is connected storage system by network with equipment such as PC, the user can use the Web interface that the data in the storage system are carried out access and management easily.Storage system becomes in the network system independently member.Storage area network) etc. the NAS terminal device will continue to improve the performance of its technology and each side, and (Storage Area Network: technology is headed for unification gradually, forms the system of a fusion with SAN.This system no longer limits intrasystem various form, more meets user's ease of manageability requirement.

Industry member provides multiple nas server: the NAS series as IBM Corporation, be central file server, be used for storage resources under multiplatform environments integrated with share, be suitable for enterprise-level application (as shown in Figure 1); As ProLiant series of Hewlett-Packard Corporation etc.Enterprise-level NAS product price is at several thousand～several ten thousand dollars.The NAS product has been widely applied to numerous areas such as education and scientific research, ISP/ASP, IDC, finance/insurance, telecommunications, CAD, network audio-video VOD program request.Some is large-scale to be applied in speed, fault-tolerant, performance, connection number of users, security of system, secure data area all high requirement.

The frame diagram of the NAS system of use existing techniques in realizing can be with reference to shown in Figure 1, comprising a NAS system 100, one server 102 based on WINDOWS NT, link to each other with the NAS system by CIFS, one server 104 based on UNIX, link to each other with NAS by NFS, also comprise several WINDOWS NT client 106 and unix clients 108.

In the digital intelligent home system, be applicable to that the low-power consumption of family, quiet, low-cost, multi-functional and miniaturization NAS system are with promising.Such terminal will provide: the dedicated data stores service, support various protocols (as NFS, CIFS, FTP, HTTP etc.), adopt IE or netscape browser just can carry out the management of intuitive and convenient by any computer to NAS equipment, plug and play simply or not needs configuration of IP address just can be visited or the like function by the user on the network.

The key property technology of NAS

NAS has used traditional ethernet and ICP/IP protocol, when carrying out file-sharing, has then utilized NFS and CIFS to link up NT and unix system.Because NFS and CIFS are based on the file sharing protocol of operating system, so the performance characteristics of NAS is the shared access that carries out the small documents level.

From the simple mechanisms of NAS as can be seen, the deployment of NAS is very simple, need only be connected with conventional switch to get final product; Secondly, its cost is lower, because the investment of NAS only limits to a nas server, and is whole storage networking unlike SAN, and simultaneously, the price of nas server is often at the medium-sized and small enterprises location; The 3rd, the management of nas server is very simple, and it generally all supports the client-side management of Web, and concerning the network management personnel who is familiar with operating system, it is provided with not only is familiar with but also simple.From data security, NAS generally only provides two-stage user security mechanism, the not high use occasion of security that can meet the demands, and the user also can additionally increase the file security means of appropriate level simultaneously.

NAS is mainly used in the file-sharing task: typically providing the access simultaneously of high-caliber file to safeguard as NFS under the unix environment and the CIFS under Windows NT environment.In addition, the NAS solution helps to reduce the global storage cost.

Provide the NAS price of large enterprise's level file service high, adopt special-purpose framework, do not popularize.The small-sized NAS terminal that extensively adopts includes based on several frameworks at present:

NAS based on X86 framework/PC form.This kind NAS generally includes the mainboard of the Pentium CPU that Intel is installed, for having the PC of operating systems such as Windows or Linux, subsidiary big capacity hard disk uses for the network storage, and PC can also provide other services as network, calculating etc. by operating system except that NAS certainly.Price is at the hundreds of dollar.

The low-cost mainboard that is used for industry control, this kind NAS adopt low price CPU such as VIA usually, have big capacity hard disk, and the network storage can be provided, and price can be lower than PC, but the application limitation is as being applied in the monitoring aspect.

And the product that the employing embedded type CPU is realized is being brought into play more and more important effect because of with plurality of advantages such as its volume are little, low in energy consumption, processing power is strong in fields such as communication, network, industry control, medical treatment, electronics.

When the scheme of coming to realize the NAS terminal device exists not enough

1) existing PC platform cost is higher

The deficiency of PC platform: this concerning the application of cost sensitivity for consumer electronics, adopt the PC platform to think better of, for instance, need carry out programme controlled micro-wave oven, obviously can not use a PC as its controller.

2) profile, power consumption aspect all can not compare favourably with household electrical appliances

Equally, as carrying out the equipment that family, small-sized activity or Administrative Area carry out the network storage, itself similar in shape one small and exquisite household electrical appliances, if adopt embedded system and can satisfy its performance requirement on platform, application is very suitable like this.

3) the existing procucts purposes is single, does not bring into play multi-functional, integrated

Current product can only provide the simplest NFS function, can not satisfy the demand in different clients market, and this patent proposes to have integrated multiple service function, and abundant application and multiple function is provided.

Existing SOC technology at the NAS technology

Existing SOC technical scheme at NAS

Be respectively at the existing SOC chip of NAS at present: based on BCM4780P of MIPS processor etc., what its technology adopted respectively is based on the IXP420 family chip of ARM and Xscale, BroadComm company in Intel Company:

The IXP420 SOC framework of Intel articulate pci controller on ahb bus, and IDE carries out bridge joint by pci bus again.

The BCM4780 SOC framework of BroadComm also is that the IDE bus hangs up IDE equipment again after chip exterior is carried out bridge joint by pci bus in the inner integrated PCI 2.2Host module of SOC.

The shortcoming of existing SOC technical scheme is that such SOC chip exists deficiency on framework: no matter be arm processor or MIPS etc. in the SOC chip, all articulate the pci controller module by ahb bus (or SOC-IT bus of MIPS), pci controller provides pci bus interface, join with SOC sheet IDE/ATA controller chip outward again, increased the intermediate protocol level--the PCI agreement.This will make that cost height, the power consumption of this SOC structure are big, and many SOC internal buss to PCI again to the delay of the protocol conversion between the IDE.

Existed system integrated technology scheme

The front is not mentioned, because big based on system integration scheme cost height, the power consumption of PC mainboard, and plate level noise is big, and is quiet and can't put into this place to the decibel sensitivity, bedroom.

The NSLU2NAS end product that Linksys company provides has improved in above-mentioned situation a lot, adopts the embedded board level system, and noise is low, low in energy consumption, cost is also low, but fails to provide other services and application except the NFS service on the software protocol.

At following deficiency of the prior art: the cost height of SOC structure, power consumption are big, and many SOC internal buss to PCI again to the delay of the protocol conversion between the IDE.System integration scheme cost height, power consumption based on the PC mainboard are big, and plate level noise is big.And at present NAS system applies scheme is just at storage server, so the single defective of purposes, the present invention aims to provide a kind of hardware configuration of new NAS system and based on the network system of this kind structure.

Summary of the invention

The purpose of this invention is to provide a kind of new NAS system hardware structure and based on the network system of this kind structure.

According to an aspect of the present invention, a kind of network attached storage system chip hardware structure is provided, comprise the central processing unit core, APB bridge joint, dma controller, storer and the hard disk bus controller that are articulated on the system bus, wherein said hard disk bus controller is the IDE/ATA controller, and described IDE/ATA controller directly is articulated on the described system bus.

According to one embodiment of the invention, described system bus is an ahb bus, can articulate one or more IDE/ATA controllers on the described ahb bus.

According to one embodiment of the invention, described ahb bus links to each other with the APB bus by described APB bridge joint, is mounted with USB interface on the described APB bus, and can also be mounted with encryption/decryption device on the described ahb bus.

According to a further aspect in the invention, the stream media system of a kind of extra storage Network Based system is provided, comprise the network attached storage system, display device, personal computer, high-definition television, general television set, the router that link to each other by Ethernet, described network attached storage system comprises central processing unit core, APB bridge joint, dma controller, storer and the hard disk bus controller that is articulated on the system bus, wherein said hard disk bus controller is the IDE/ATA controller, and described IDE/ATA controller directly is articulated on the described system bus; Described display device, personal computer, high-definition television, general television set are connected with described Ethernet by a stream media box; Described stream media box is used for converting Streaming Media to video data, and described stream media box has the RJ45 interface that is used for linking to each other with Ethernet, is used for the VGA interface that links to each other with display device or personal computer, the radio frequency interface that is used for the rgb interface that links to each other with high-definition television and is used for linking to each other with general television set; In described stream media system, described network attached storage system provides Streaming Media broadcasting, and described stream media box is transferred to display device, personal computer, high-definition television and general television set by each interface after receiving described Streaming Media broadcasting and converting corresponding video data to.

According to one embodiment of the invention, described network attached storage system can also include the wireless transport module with wireless routing function.

According to one embodiment of the invention, the router in the described stream media system can comprise wireless router.

According to one embodiment of the invention, described stream media box is supported ICP/IP protocol, can also support application layer protocol to comprise P2P, iTune, Xstream, ftp client application protocol.

According to another fermentation of the present invention, the integrated system of a kind of extra storage Network Based system is provided, described network attached storage system in the described integrated system comprises central processing unit core, APB bridge joint, dma controller, storer and the hard disk bus controller that is articulated on the system bus, wherein said hard disk bus controller is the IDE/ATA controller, and described IDE/ATA controller directly is articulated on the described system bus; Described integrated system can be realized NFS LAN (Local Area Network), CIFS and Web.

According to one embodiment of the invention, described integrated system can also be realized DHCP, Samba LAN (Local Area Network), telnet telnet, ftp service and ftp client downloads, SSH security protection, SCP, SFTP telnet and download, http, cvs server, Blog, BT and BT client downloads, php-apache, qmail and the service of iTune network.

NAS of the present invention system new construction provides a solution efficient, that the ratio of performance to price is excellent for the corporate environment of those visits and shared heap file system data.The integration of data has reduced regulatory requirement and expense, and the NetWare file server of centralization and storage environment, comprises that hardware and software then guaranteed the high availability of reliable data access and data.Embedded, integrated NAS terminal of the present invention is installed, management is easy, low in energy consumption, noise is low, and can be in the state that never shuts down in the family, can make all connection continuously effectives.The present invention also at the scheme of application-specific customization, as Xstream server, iTune server, Web Service or Blog service etc., has developed the integrated form terminal of multiple service.

Description of drawings

The above and other features of the present invention, character and advantage will be by becoming more obvious below in conjunction with accompanying drawing to the description of embodiment, and identical in the accompanying drawings feature is represented identical feature all the time, wherein:

Fig. 1 is to use the frame diagram of the NAS system of existing techniques in realizing;

Fig. 2 is a network attached storage system chip hardware structure block diagram of the present invention;

Fig. 3 is the block diagram of the stream media system of extra storage Network Based of the present invention system;

Fig. 4 is the block diagram of expanded application system of the stream media system of extra storage Network Based of the present invention system;

Fig. 5 is the thin client block diagram according to a kind of NAS terminal of the present invention.

Embodiment

Further specify technical scheme of the present invention below in conjunction with drawings and Examples.

The NAS system hardware structure

The front was said, no matter in the SOC chip of NAS of the prior art system is arm processor or MIPS, all (the SOC-IT bus of the ahb bus of AMBA or MIPS) articulates the pci controller module on system bus, pci controller provides pci bus interface, join with SOC sheet IDE/ATA controller chip outward again, increased the intermediate protocol level--the PCI agreement.An improvement of the present invention is to articulate the IDE/ATA controller on (the SOC-IT bus of the ahb bus of AMBA or MIPS) on the system bus, directly carries out IDE/ATA control, no intermediate conversion rank.

Fig. 2 shows network attached storage system chip hardware structure block diagram of the present invention, as shown in the figure, network attached storage system chip hardware structure of the present invention, comprise the central processing unit core 202, APB bridge joint 204, dma controller 206, storer 208 and several hard disk bus controllers 210 that are articulated on the system bus 200, wherein, hard disk bus controller 210 is the IDE/ATA controller, and IDE/ATA controller 210 directly is articulated on the system bus 200.By this improvement, just saved the intermediate conversion rank, simplified treatment step.Be compared to existing NAS chip, have cost low (saving the integrated of PCI Host IP module), change fast advantage.Be also shown in reference to figure 2, in this embodiment, system bus 200 adopts ahb bus, can articulate one or more IDE/ATA controllers 210 on the ahb bus 200, in addition, ahb bus links to each other with APB bus 212 by APB bridge joint 204, is mounted with USB interface 214 on the APB bus 212, and can also be mounted with encryption/decryption device 216 on the ahb bus 200.

Stream media system based on the NAS system

According to a further aspect in the invention, the stream media system of a kind of extra storage Network Based system also is provided, its main improvement has been to adopt above-mentioned network attached storage system chip hardware structure, promptly this network attached storage system comprises central processing unit core, APB bridge joint, dma controller, storer and the hard disk bus controller that is articulated on the system bus, wherein the hard disk bus controller is the IDE/ATA controller, and the IDE/ATA controller directly is articulated on the system bus.Show the stream media system network structure block diagram of an one embodiment with reference to figure 3, as shown, this stream media system 300 comprises network attached storage system 200, display device 304, personal computer 306, high-definition television 308, general television set 310, the router three 12 that links to each other by Ethernet 302.With reference to figure 3 as seen, display device 304, personal computer 306, high-definition television 308, general television set 310 all are connected with Ethernet 302 by a stream media box 314; Stream media box 314 is used for converting Streaming Media to video data, and stream media box has the RJ45 interface that is used for linking to each other with Ethernet, is used for the VGA interface that links to each other with display device or personal computer, radio frequency interface, S terminal or the DVI interface that is used for the rgb interface that links to each other with high-definition television and is used for linking to each other with general television set.The stream media box 314 that is connected in different equipment uses the interconnected of different interface realizations and these equipment.

In the Streaming Media based on the NAS system shown in Figure 3 (Xstream) project of network technique, the NAS system provides Xstream broadcast mode (Xstream BroadCast), Xstream BOX in the LAN net can pass through Ethernet interface (perhaps wireless mode) and receive broadcast data, convert HDTV video formatted data (HDTV video standard interface 1080P/1080i/720P is provided) to, or common TV, or the video interface pattern of VGA display, also can receive the Xstream stream of NAS system terminal broadcasting by PC, make on PC, can be able to play stream.

Wherein said stream media box (Xstream Box) the 314th, a kind of be used to finish accept the Xstream stream medium data, and by Ethernet interface with the equipment of data-switching to video interface.Microcontroller) or special ASIC chip (Application SpecificIntegrated Circuit: special IC) realize based on the conversion to video data of the Xstream media stream of TCP/IP it is based on MCU (Micro Control Unit:.The function of Xstream Box comprises the support ICP/IP protocol, can be made as side's of being broadcasted (Client client mode), accepts to come from the broadcast multimedia streams of NAS terminal, supports the Xstream format stream, can transfer the data among the Xstream to video data.Its physical interface comprises needed VGA interfaces such as the prevention at radio-frequency port of the rgb interface of ethernet port, high definition television of RJ45 or common TV or computer monitor LCD etc.

Layout by above-mentioned network structure, make the NAS terminal to merge with existing family flat board/liquid crystal display, flat board/LCD TV is connected with the NAS terminal by Ethernet interface, NAS provides XStream stream, the Video data are comprised that jpeg image or mpeg image and synchronously good audio transmission give flat board/LCD TV, perhaps by the SlideShow technology, the image file of NAS terminal transmits one by one by the Slide mode and is presented on the display device, and flat board/LCD TV also can reach the wall hanging picture effect of home/office like this.

In addition, the stream media system of also describing among Fig. 3 also can carry out Xstream scheme based on NAS by wireless mode, and comprise two kinds of implementations: (1) NAS can be with wireless routing function by integrated wireless transport module (WLAN 802.11a/b/g mode); (2) NAS itself does not have wireless routing function, and the wireless routing device of proprietary door is wireless routers such as router three 12 in LAN (Local Area Network).The stream media box (Xstream BOX) that is used for wireless transmission changes into the video format broadcast with data and shows in terminal.Stream media box can be supported ICP/IP protocol, can also support application layer protocol to comprise P2P, iTune, Xstream, ftp client application protocol.Expanded application about this kind stream media system will be discussed in more detail below.

Expanded application based on the stream media system of NAS system

Stream media system based on the NAS system of the present invention can have following expanded application, for example as storage server or multimedia server.No matter be professional person or without any the layman of background, this NAS terminal all can be stablized, healthy and strong, use widely, not only be used for digital camera, Digital Video data storage, choose photo automatically by embedded software and issue homepage automatically by Apache or dhttpd, also can be used for the dull and stereotyped mural painting of family in the digital household appliances, propagate the NAS terminal content by network.But below be the direction of this equipment expanded application, including, but not limited to: family data center, digital audio broadcasting, digital video broadcasting, monitoring, control system and wireless application direction: comprise wireless storage, wireless monitor, wireless monitor and control system.

In addition, NAS system prospect in family's storage networking is used is vast, and the function that can realize according to NAS equipment is divided into three: a class is the entertainment information storage, is exactly the digital home that says usually, comprises the storage of picture and video-audio data; One class is a household safety, comprises the storage of data messages such as environmental monitoring, gate control system and temperature sensing, can monitor and store data to local by the NAS terminal device; Also having a class is the life staying idle at home class, comprises the control automatically of kitchen appliance equipment, lighting, the storage of health-care device data, and these also can monitor and store data to local by the NAS terminal device.

Fig. 4 shows the structured flowchart according to the home network that makes up based on the stream media system of NAS system of the present invention, it comprises: by the interconnected NAS of Ethernet 402 system 200, display 404, televisor 406, printer 408, phone 410, facsimile recorder 412, hub 414, video camera 416, notebook computer 418, desktop computer 420, camera 422, DVD 424, audio and video equipment 426 etc., and directly connection projector 428 or personal digital assistant terminals 430 of NAS system 200 wherein.

Integrated system based on the NAS system

Another aspect of the present invention provides the integrated system of a kind of extra storage Network Based system, NAS system in the integrated system adopts new hardware configuration of the present invention, promptly comprise the central processing unit core, APB bridge joint, dma controller, storer and the hard disk bus controller that are articulated on the system bus, wherein the hard disk bus controller is the IDE/ATA controller, and the IDE/ATA controller directly is articulated on the system bus.

According to the present invention, this integrated system can be realized the function of NFS LAN (Local Area Network), CIFS, Web, DHCP, Samba LAN (Local Area Network), telnet telnet, ftp service and ftp client downloads, SSH security protection, SCP, SFTP telnet and download, http, cvs server, Blog, BT and BT client downloads, php-apache, qmail and the service of iTune network, describes in detail below.

At first in conjunction with Fig. 5 a kind of NAS terminal that realizes with the thin client form is described, it has the characteristics of the hardware configuration of NAS of the present invention system.

With reference to figure 5 as seen, this kind terminal 500 comprises:

Be placed on the structure in the SOC sheet 502: AHB system bus 504, ARM CPU 506, EMIF 508, SRAM storer 510, ATA/IDE hard disk bus controller 512, dma controller 514, ethernet controller 516, USB port 518 and APB bridge joint 520, wherein above-mentioned ARM CPU 506, EMIF 508, SRAM storer 510, ATA/IDE hard disk bus controller 512, dma controller 514, ethernet controller 516, USB port 518 and APB bridge joint 520 all directly are articulated on the AHB system bus 504.Also comprise other low-speed device 522 that is connected on the APB bridge joint 520 on the SOC sheet 502.

Terminal 500 also comprises the structure of mode outside SOC sheet 502: comprise FLASH storer 524 and the SDRAM/DDR storer 526 that is connected on the EMIF 508 and be articulated to hard disk 528 on the ATA/IDE hard disk bus controller 512.

Can see that from Fig. 5 except that CPU 506, the realization of the network memory that carries out with this NAS terminal mainly comprises two parts: I/O interface and memory interface.Be the center with CPU below, the major function of these two interfaces be described:

The I/O interface.The one, the interface of CPU and Ethernet (Ethernet interface), it adopts the mode of AHB (10M/100MBPS) to link to each other with Ethernet 10Base-T interface (10M/100MBPS self-adaptation), be the passage that enters LAN (Local Area Network), in total system, be responsible for the packet on transmission or the reception network.The 2nd, and USB interface, adopt the Host module, be used to connect the Flash or the hard disk storage devices of USB interface.

Memory interface.Comprise two aspects: the one, SDRAM or ddr interface are as the hardware system internal memory; The 2nd, Flash interface, main storage operating system and application software.The both links to each other with CPU by the EMIF module.

In whole software design, select (SuSE) Linux OS, because the core system volume is little, network function strong, be suitable for reducing, being embedded among the Flash, and network management and disk management function are arranged, thereby can realize the function of built-in network storer.

Widely popular operating system has two kinds in the modern PC: Windows and Linux.These two kinds of operating systems depend on diverse technology and provide services on the Internet: (SuSE) Linux OS is based on transmission control protocol/procotol (TCP/IP), network file system(NFS) (NFS) and the network information service (NIS), provides services on the Internet; Microsoft then depends on NetBIOS and service message block (SMB) provides the service of data from Server Transport to client computer.Therefore select for use the Samba instrument to realize file-sharing under these two kinds of different platforms.

Carry out the realization of file-sharing between the different structure network by NFS, NFS is a kind of method that disk file is shared that realizes between the Unix system, and support application program is arranged in a kind of file system protocol of server disk data by network access in client.The now general NFS (Sun) that adopts the Sun exploitation between the Unix main frame, it can realize the exchanging visit of file data between all Unix systems, become a standard of shared resource between main frame gradually.

The following describes can be integrated on above-mentioned NAS terminal network function:

User for the NAS terminal, all technical matterss all can be imbedded in Web (page-mode) friendliness and be simple and easy in the interface of usefulness, for example, the user who has the NAS terminal device does not need to know that telnet, ftp are what, just can enter NA S inside and carry out the renewal of Firmware, thereby finish the upgrading of firmware, strengthen what performance of usable range of NAS.From this aspect, the Barbie doll of similar deformable Buddha's warrior attendant of configurable NAS or wearable garment can come download firmware (image file) NAS to be transformed into the type that needs according to demand.

The NAS terminal has powerful and abundant network service function, except NFS/CIFS/Web, can also comprise DHCP, printer management (comprising LPRng system and CUPS system), also have other characteristics: built-in disk utility routine (backup, self check, scanning disk and put chips of the magnetic disc in order); Operating system makes the user needn't close network when adding and removing hard disk in equipment and not on hard disk; Internet extra storage function allows by Web browser telereference file; Universal plug and play (UPnP) can be accelerated to be provided with and communicating by letter with other UPnP equipment in the network; The network of compatibility operation Windows 98, Me and XP.

The more important thing is that in addition the NAS terminal can provide following any service and application separately, also can be used in combination, and only need upgrade firmware or refresh specially of essence:

● the telnet server

The function of the built-in telnetd of NAS, the user can enter the NAS order line by the telnet connection on other machines, and can transmit the image file to the NAS terminal with the ftp mode, makes NAS carry out the renewal of FirmWare, again upgrading.And can carry out Long-distance Control by telnet, turn off unwanted Daemon service.

● ftp server and client side (basic function that provides ftp Service service and ftp Client to download)

The function of the built-in ftpd of NAS, and friendly and abundant interface is provided, the user can come the ftpd service of operation setting NAS with serv-U similar operation method, and this ftpd is the soft sign indicating number of GPL, renewable modification.

● set ftp downloading task (Open SSH/SCP/SFTP) by the Web mode

Traditional network server, as: ftp, pop and telnet are unsafe in itself, because they transmit password and data with plaintext on network, other people are very easy to just can intercept and capture these passwords and data.And the safety verification mode of these service routines also has its weakness, is easy to be subjected to " go-between " (man-in-the-middle) attack of this mode exactly.

The English full name of SSH is Secure SHell.By using SSH, can encrypt the data of all transmission, " go-between " this attack pattern just can not have been realized like this, and can prevent DNS and IP spoofing.Also having the data of an extra benefit transmission is through overcompression, so can accelerate transmitting speed.SSH has a lot of functions, and it both can replace telnet, and " passage " of a safety can be provided for ftp, pop even PPP again.

● http-server

Http service basic function is provided.

● the cvs server

Cvs server is provided service, and CVS is Control Version Service, is data management under the linux version or Version Control.

●P2P(Peer-to-Peer)

Peer-to-Peer is point-to-point software, P2P uses and mainly comprises BT server and client side (comprise BT service and BT Client download function are provided), also comprise P2P software, as eMule, eMule is the P2P software of a fully free and open source code, utilize its excellent properties, can with global online friend's shared in common resource, enjoy the enjoyment of freely sharing to the full! Kad connection that the eMule of latest edition is integrated, the boundary of further having crossed over server surpasses eMule user's shared in common resource of 2,000,000 with the whole world.

The BT client is moved with a server round-robin form, and it need monitor a port, is used to accept the connection request of other peers; In cyclic process, it realizes " I/O is multiplexed " by select; And finish the analyzing and processing of BT peer protocol by the Encoder class.

BitComet is based on the p2p freeware of BitTorrent agreement; Network inner efficiently, multitask are downloaded the CPU EMS memory occupation that still keeps seldom simultaneously; Support is selectively downloaded the file among the Torrent; The disk buffering technology effectively reduces the damage of high speed random read-write to hard disk; Only need a listening port can satisfy all and download needs; Automatically preserve download state, continuous biography need not scanning document once more, makes seed and also need not scanning document; Support many Tracker agreement; Suitable equally to Intranet user; "Green" software need not installed, related .torrent file when only moving; Multilingual interface.

● iTune server (providing iTune service, the iTune service of similar iPod)

ITune can allow the user of same LAN, shares music each other, but memory function is not provided.MyTune then when reading other user's music archive, has increased the function that stores into MP3.

Internet Web broadcast function is provided, and the network download function.IPOD downloads or online playing from iTune

● nfs server (LAN (Local Area Network) basic function)

The NFS network file system(NFS) is used for shared file between different operating system, different network structure and different host-host protocol.The NFS protocol groups comprises NFS, RPC, XDR.The process that NFS itself does not provide other program to call, it is realized by remote procedure call and universal external data representation.Remote procedure call comprises the process number of host address, program number and a far-end process for remote service provides an interface, and External Data Representation provides the method for a cover by the network description data type.

In different operating system, the way to manage difference of file system also all has different regulations for the degree of depth of directory tree, the use of name and the method for expressing in path.The file system of some operating system is in below the specific directory, and some operating system seems under an independent catalogue all file system with the mount operation.Although catalogue and file aspect a lot of all comparing class seemingly visit them and but must call different programs, therefore, NFS supposition file system is graduate, and file is in the lowest class, NFS provides the network format of a standard so that visit for catalogue.In far call, call at every turn and only return a catalogue, solved the different problem of structure between the different file like this.

Nfs server has used 5 finger daemons that NFS is provided service.The most basic system that the NFS service is provided will move nfsd at least and be used to handle the NFS agreement, and mountd is used to handle client's mount request.In addition, because NFS uses the RPC far call, other three RPC finger daemon portmap, rpc_lockd, rpc_statd can be with helping provide service more efficiently.In order to make other system also can use hard drive space on the linux system, when system start-up, should be written into the finger daemon of NFS.

● Samba server (LAN (Local Area Network) basic function)

SAMBA is a kind of service that LINUX provides, and it can allow the WINDOWS main frame see the LINUX main frame in People Near Me and share resource on it.The function that realizes SAMBA must be added the SAMBA service, concentrates among the SMB.conf as also simple being provided with mainly of it of the setting of SAMBA.Samba shares and can be provided with by the Web page.

● Dynamic Host Configuration Protocol server

DHCP: DHCP, it is the abbreviation of Dynamic Host Configuration Protocol, this agreement can be each the computing machine automatic IP address allocation in the LAN (Local Area Network) automatically, and the ICP/IP protocol of finishing every computing machine disposes, comprise IP address, subnet mask, gateway, and dns server etc.Like this in LAN (Local Area Network) in the particularly large-scale LAN (Local Area Network), the keeper just needn't be for each computing machine manual configuration ICP/IP protocol, the problem of also having avoided the IP address to repeat.The DHCP service can be set in NAS.

● automated back-up (Cron function) server

Linux has autotask and carries out function (Cron service), its operation is as follows: by opening the Crond Service service under the Linux, open the Daemon of Crond always, under Linux /etc/crontab in default task scheduling, when the scheduling time then, can carry out following certain operations:

Automated back-up between memory device:, perhaps this NAS machine data is read and is saved in certain machine that lives as from the A machine read data that lives be saved in this NAS machine.

For household electrical appliances, can connect by network, when scheduling time then, can be automatically carry out information data and detect and preserve, and can carry out respective reaction monitored equipment.

For monitoring camera, can regularly carry out the backup of data, the data that shooting is come are saved in the NAS machine.

For image, can be in the NAS machine in TV Festival catalogue that setting-up time then will be play at that time.

For voice data, can regularly record broadcasting even can regularly record voice.

The self-timing scheduling can be provided with by the Web page.

● printer management (comprising LPRng system and CUPS system) server

● telnet service SSH server (telnet service basic function is provided)

● the php-apache server

● the mysql server

At present popular is exactly that PHP+MySQL+Apache and these two groups of service structures of Apache+ASP set up.

● Streaming Media (Xstream) service

Xstream is a kind of technology in content and Digital Media transmission, and it provides a platform that retractility is strong, safe and reliable for the distribution stream audio and video, is used to provide various streaming media services.

Xstream has comprehensively adopted current state-of-the-art multimedia video technique and network flow-medium technology, uses boundless.Xstream preserves except the File Compress of supporting multiple form, and three kinds of live-mode schemes more are provided:

Direct-seeding based on Divx

Based on the embedded WMV server direct-seeding of Xstream

Direct-seeding based on Windows Media Services 9

Utilize XStream can realize various net cast schemes like a cork.High-quality net cast based on Divx: compare with the software compression, effect (CIF 352 * 288 is all only supported in the regular software compression) and time-delay that it supports Full D1 (720 * 576) to make image quality can really reach DVD only are lower than 500 milliseconds.So owing to be that hardware-compressed stability is very good, and it is very little to take cpu resource.And server and receiving end can be preserved live content get off.Be suitable for very much image quality, time delay, stability are all required very high net cast.

● the qmail server

One is small-sized and E-MailServer can be with at home and in the office fast, can transceiver as long as allow all users just connect to network, and support POP3/SMTP once transmits a large amount of mails, and the highest can have 1024 users simultaneously.The NAS system can support the qmail service.

● blog server (the Blog service is provided)

Blog can support diary function, comprises showing and search; Support classification; Can make comments; Support TrackBack, conveniently quoted by the people; The WYSIWYG editing machine is arranged; Can upload file; Template is separated with program, the convenient modification; Can the hairgrass original text, revise after convenient; Support RSS (RSS is " Rich Site Summary " ' or the English acronym of " Really Simple Syndication ", Chinese is called " simple and easy information fusion ".RSS is a kind of based on the XML standard, content packaging that is widely adopted on the internet and delivery agreement.)。

The beneficial effect that technical solution of the present invention is brought

NAS provides a solution efficient, that the ratio of performance to price is excellent for the corporate environment of those visits and shared heap file system data.The integration of data has reduced regulatory requirement and expense, and the NetWare file server of centralization and storage environment, comprises that hardware and software then guaranteed the high availability of reliable data access and data.

Embedded, integrated NAS terminal proposed by the invention is installed, (NAS need not server and directly surfs the Net easily in management, but adopt the user oriented system that simplifies the operation design, that be specifically designed to data storage, built-in be connected required agreement with network, the management of total system and setting are comparatively simple), because adopt embedded software and hardware system, low in energy consumption, noise is low, and can be in never the state of shutdown in the family, can make all connection continuously effectives.

At the scheme of application-specific customization,, developed the integrated form terminal of multiple service as Xstream server, iTune server, WebService or Blog service etc.

In polytype integrated system that the present invention provides various network services, integrated various types of softwares do not need client oneself to go design.And renewable software on hardware foundation.System software has adopted linux kernel, adopts the software code of GPL, can compile, and can design.Application software is downloaded on the net from the service supplier, enter into system by Telnet to be placed on/the etc catalogue under.And this NAS system based on NFS, Apache etc., price is low.

The NAS integrated system can provide following software application, network service function is except NFS/CIFS/Web, also have: telnet, ftp (ftp service and ftp Client download function are provided) basic function, http (the http service is provided) basic function, blog (the Blog service is provided), cvs (cvs server service is provided), BT (comprise BT service and BT Client download function are provided), iTune website (providing iTune service, the iTune service of similar iPod), NFS (LAN (Local Area Network)) basic function, Samba (LAN (Local Area Network)) basic function, SSH (the telnet service is provided) basic function, php-apache, xstream, qmail.

Can develop according to the present invention based on the various application systems of NAS hardware configuration of the present invention for example media server (MeidaServer) or storage server (StorageServer).Applicable situation is very wide, can at digital camera, Digital Video, the dull and stereotyped mural painting of family etc. very big purposes be arranged all in family, dormitory, office space, Internet bar, TV and Radio Service etc., and its attraction also is: price is low, quiet, low-power consumption.Can also continue to be extended to: each side such as the VOIP in wireless route, local place, digital home, digital supervision, digital tele-medicine, broadcasting and TV aspect multimedia.

The foregoing description provides to being familiar with the person in the art and realizes or use of the present invention; those skilled in the art can be under the situation that does not break away from invention thought of the present invention; the foregoing description is made various modifications or variation; thereby protection scope of the present invention do not limit by the foregoing description, and should be the maximum magnitude that meets the inventive features that claims mention.

Claims (9)

1. a network attached storage system chip hardware structure comprises the central processing unit core, APB bridge joint, dma controller, storer and the hard disk bus controller that are articulated on the system bus, it is characterized in that,

Described hard disk bus controller is the IDE/ATA controller, and described IDE/ATA controller directly is articulated on the described system bus.

2. chip hardware structure as claimed in claim 1 is characterized in that, described system bus is an ahb bus, can articulate one or more IDE/ATA controllers on the described ahb bus.

3. chip hardware structure as claimed in claim 2 is characterized in that, described ahb bus links to each other with the APB bus by described APB bridge joint, is mounted with USB interface on the described APB bus, and can also be mounted with encryption/decryption device on the described ahb bus.

4. the stream media system of an extra storage Network Based system comprises the network attached storage system, display device, personal computer, high-definition television, general television set, the router that link to each other by Ethernet, it is characterized in that,

Described network attached storage system comprises central processing unit core, APB bridge joint, dma controller, storer and the hard disk bus controller that is articulated on the system bus, wherein said hard disk bus controller is the IDE/ATA controller, and described IDE/ATA controller directly is articulated on the described system bus;

Described display device, personal computer, high-definition television, general television set are connected with described Ethernet by a stream media box; Described stream media box is used for converting Streaming Media to video data, and described stream media box has the RJ45 interface that is used for linking to each other with Ethernet, is used for the VGA interface that links to each other with display device or personal computer, the radio frequency interface that is used for the rgb interface that links to each other with high-definition television and is used for linking to each other with general television set;

In described stream media system, described network attached storage system provides Streaming Media broadcasting, and described stream media box is transferred to display device, personal computer, high-definition television and general television set by each interface after receiving described Streaming Media broadcasting and converting corresponding video data to.

5. stream media system as claimed in claim 4 is characterized in that described network attached storage system can also include the wireless transport module with wireless routing function.

6. stream media system as claimed in claim 5 is characterized in that the router in the described stream media system can comprise wireless router.

7. stream media system as claimed in claim 1 is characterized in that, described stream media box is supported ICP/IP protocol, can also support application layer protocol to comprise P2P, iTune, Xstream, ftp client application protocol.

8. the integrated system of an extra storage Network Based system, it is characterized in that, described network attached storage system in the described integrated system comprises central processing unit core, APB bridge joint, dma controller, storer and the hard disk bus controller that is articulated on the system bus, wherein said hard disk bus controller is the IDE/ATA controller, and described IDE/ATA controller directly is articulated on the described system bus;

Described integrated system can be realized NFS LAN (Local Area Network), CIFS and Web.

9. integrated system as claimed in claim 8, it is characterized in that described integrated system can also be realized DHCP, Samba LAN (Local Area Network), telnet telnet, ftp service and ftp client downloads, SSH security protection, SCP, SFTP telnet and download, http, cvs server, Blog, BT and BT client downloads, php-apache, qmail and the service of iTune network.

Images