CN113630431B - Full network optical disc library cluster - Google Patents
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- CN113630431B CN113630431B CN202010388970.9A CN202010388970A CN113630431B CN 113630431 B CN113630431 B CN 113630431B CN 202010388970 A CN202010388970 A CN 202010388970A CN 113630431 B CN113630431 B CN 113630431B
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- 230000003287 optical effect Effects 0.000 title claims abstract description 209
- 238000004891 communication Methods 0.000 claims abstract description 14
- 238000013500 data storage Methods 0.000 abstract description 3
- 230000006855 networking Effects 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 6
- 230000000875 corresponding effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000013479 data entry Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/104—Peer-to-peer [P2P] networks
- H04L67/1044—Group management mechanisms
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/0614—Improving the reliability of storage systems
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0629—Configuration or reconfiguration of storage systems
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/067—Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/02—Details
- G11B17/04—Feeding or guiding single record carrier to or from transducer unit
- G11B17/05—Feeding or guiding single record carrier to or from transducer unit specially adapted for discs not contained within cartridges
- G11B17/053—Indirect insertion, i.e. with external loading means
Abstract
The invention provides a full-network optical disc library cluster, and belongs to the field of data storage. The full network optical disc library cluster comprises: each optical disc library comprises at least one optical disc library controller and a plurality of mutually independent network optical drives, and each server, each optical disc library controller, each network hard disc and each network optical drive are provided with independent IP addresses and are in communication connection through the network switch; the network CD driver and the network hard disk are configured under the same-level network switch and are provided with the same IP address section, and the network CD driver and the network hard disk can independently communicate and directly transmit data between an optical disk loaded in the network CD driver and the network hard disk. The all-network optical disc library cluster is safe and reliable, has strong running performance and good economy.
Description
Technical Field
The invention relates to the field of data storage, in particular to a full-network optical disc library cluster.
Background
The existing optical disc drive set is usually configured with a plurality of optical disc drives, the standard interface of the optical disc drive is SATA, the SATA interface is connected with the PCI bus adapter of the server through a cable, and the optical disc drive is connected to the server as a peripheral device.
This connection formation has the following problems: the number of CD-ROM drives carried by each server is limited, and more servers are needed; the server runs the multi-path burning program, and the performance requirement of the server is high; the number of hard disk groups (mechanical hard disks or SSD solid state disks) carried by the server is more in requirement; along with the increase of the number of the recording processes (the number of CD-ROM drives), the recording speed can be obviously reduced; the SATA/SAS cable length of the server to the optical disc drive set is limited, so the server must be installed in close proximity to the optical disc library device, typically in the same cabinet; such conventional server/peripheral architectures are not suitable for distributed storage. When implementing a large optical storage cluster, the number of servers and the number of hard disks that the servers need to be configured are large, thereby increasing the cost of the system. In addition, the architecture of the server connecting a plurality of optical drives and the optical disc library controller generates a typical single point of failure, thereby reducing the usability of the system. In addition, from the point of view of workflow rationalization, the storage of cold data or archived data is divided into two distinct working phases, a data entry (migration) phase and a phase to be queried. The system needs to migrate a large amount of history data into the optical disc library at the fastest speed in the data entry stage, and at this time, the optical disc drive set and the server should work at the maximum efficiency. Once the data migration is completed, the data in the optical disc library enters a long-term passive access state to be queried, and at the moment, the server and the optical disc set are in an idle waiting state in most of time, and the pressure load for providing query data is far smaller than that when the data is recorded. In the case of a large optical disc library cluster system, the server resource waste is obvious at this time, because the server with high configuration is idle for a long time only by a short array. In addition, from the viewpoint of energy consumption, a large number of servers that are idle and running under low load consume power and generate heat.
Disclosure of Invention
The invention aims to provide a full-network optical disc library cluster which is safe, reliable, high in operation performance and good in economy.
It is a further object of the invention to facilitate the arrangement of the entire cluster.
In particular, the present invention provides a fully networked optical disc library cluster, comprising:
each optical disc library comprises at least one optical disc library controller and a plurality of mutually independent network optical drives, each server, each optical disc library controller, each network hard disc and each network optical drive are provided with independent IP addresses and are in communication connection through the network switch, so that the corresponding relation between the server and the optical disc library, between the network optical drives and the network hard disc can be dynamically allocated; wherein,
the network CD-ROM and the network hard disk are configured under the same level of network switch and are provided with the same IP address section, the network CD-ROM and the network hard disk can be independently communicated, and data can be transferred between an optical disk loaded into the network CD-ROM and the network hard disk.
Optionally, each network optical drive includes an optical drive processor and an optical drive, one side of the optical drive processor facing the optical drive is provided with a first SATA data interface and a first SATA power interface connected with the optical drive, the optical drive processor performs data communication with the optical drive through the first SATA data interface, and the optical drive processor supplies power to the optical drive through the first SATA power interface.
Optionally, a first network interface and a first power interface are disposed on a side of the optical drive processor facing away from the optical drive, the first network interface is in communication connection with the switch, and the first power interface is connected with a power supply of the optical disc library.
Optionally, each network hard disk includes a hard disk processor and a hard disk, one side of the hard disk processor facing the hard disk is provided with a second SATA data interface and a second SATA power interface connected with the hard disk, the hard disk processor performs data communication with the hard disk through the second SATA data interface, and the hard disk processor supplies power to the hard disk through the second SATA power interface.
Optionally, a second network interface and a second power interface are arranged on a side, facing away from the hard disk, of the hard disk processor, the second network interface is in communication connection with the switch, and the second power interface is connected with a power supply of the optical disc library.
Optionally, the server is configured to send a control instruction to the network hard disk and the network optical drive through a network, so as to control writing data in the network hard disk onto an optical disk loaded in the network optical drive or reading data on the optical disk loaded in the network optical drive into the network hard disk.
Optionally, the server is configured to send a control instruction to the optical disc library controller through a network, so as to control loading or unloading of the optical disc into or from the network optical disc drive through the optical disc library controller.
Optionally, the server includes a hard disk cache for storing temporary data and a third network interface for connecting with the network switch;
and the network control data of the server are transferred among the optical disk loaded in the network CD-ROM, the network hard disk and the hard disk cache.
Optionally, the plurality of servers are configured to manage one or more of the same optical disc library controller, the same network optical disc drive and the same network hard disc, the plurality of servers are configured to be mutually backed up, and when one of the servers fails, the server is automatically switched to the other server to serve as a main server.
In the invention, each server, each optical disc library controller, each network hard disk and each network CD-ROM in the all-network optical disc library cluster are provided with independent IP addresses and realize communication connection through the network switch, so that a networked optical disc library is constructed, and the networked optical disc library can be conveniently constructed into the optical disc library cluster. The system architecture breaks the master-slave relation between the server and the specific optical disc library, and the optical disc library is not used as a peripheral directly connected with a specific server. The whole optical disc library cluster is in an IP data stream environment, and resources can be shared to the greatest extent, so that the running performance and economy of the cluster are greatly improved.
Further, the system architecture of the present invention maximizes the removal of the large number of single points of failure (SPOF, single Point Of Failure) that exist in a conventional server/peripheral direct connection.
A further advantage of the present invention is its high reliability and high availability. Many independent parallel network drives, any individual failure will not affect the operation of other network drives. For server and network attached storage, the system may be dynamically allocated, nor is there a single point of failure.
The above, as well as additional objectives, advantages, and features of the present invention will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present invention when read in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:
FIG. 1 is a schematic diagram of a framework for a cluster of optical disc libraries with full networking according to one embodiment of the invention;
FIG. 2 is an exploded schematic view of a cluster of optical disc libraries with full networking according to one embodiment of the invention;
FIG. 3 is a schematic diagram of a fully networked optical disc library cluster according to one embodiment of the present invention;
FIG. 4 is an exploded view of a first perspective of a network optical drive using a fully networked optical disc library cluster according to one embodiment of the present invention;
FIG. 5 is an exploded view of a second perspective of a network optical drive using a fully networked optical disc library cluster according to one embodiment of the present invention;
FIG. 6 is an exploded view of a first perspective of a network hard disk cluster with a fully networked optical disk library cluster in accordance with one embodiment of the present invention;
fig. 7 is an exploded view of a second perspective of a network hard disk with a fully networked optical disk library cluster according to one embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic diagram of a framework for a cluster of optical disc libraries with full networking according to one embodiment of the invention. Fig. 2 is an exploded schematic view of a cluster of optical disc libraries with full networking according to one embodiment of the invention. Fig. 3 is a schematic diagram of a structure of a cluster of optical disc library with full networking according to an embodiment of the present invention. As shown in fig. 1, and referring to fig. 2, in one embodiment, the full network optical disc library cluster of the present invention includes a plurality of optical disc libraries 10 (see fig. 3), a plurality of network hard discs 20, a plurality of network switches 30, and at least one server 40. Optionally, the network hard disk 20 includes a mechanical hard disk (hard disk) and a solid state hard disk. Each optical disc library comprises at least one optical disc library controller 50 and a plurality of mutually independent network optical disc drives 60, and each server 40, each optical disc library controller 50, each network hard disc 20 and each network optical disc drive 60 are provided with independent IP addresses and are in communication connection through the network switch 30, so that the corresponding relation between the server 40 and the optical disc library 10, the corresponding relation between the network optical disc drives 60 and the corresponding relation between the server and the network hard disc drives 20 can be dynamically allocated. For example, the same server 40 manages a plurality of optical disc libraries 10 (i.e., manages all network drives 60 and optical disc library controllers 50 of the optical disc library 10), and the same optical disc library 10 may be managed by one or more servers 40; or the same server 40 manages a preset number of network drives 60 of different optical disc libraries 10, e.g. the server 40 manages one or more network drives 60 in the optical disc library 10 while managing one or more network drives 60 in the optical disc library 2; the same server 40 may also manage a plurality of network hard disks 20, and the same network hard disk 20 may be managed by a plurality of servers 40, and in particular may be dynamically allocated according to the network load of each network. The network optical drive 60 and the network hard disk 20 are configured under the same level of the network switch 30 and are provided with the same IP address field, the network optical drive 60 and the network hard disk 20 can communicate independently, and data can be transferred between the optical disk loaded in the network optical drive 60 and the network hard disk 20.
Each server 40, each optical disc library controller 50, each network hard disk 20 and each network optical disc driver 60 in the full-network optical disc library cluster are provided with independent IP addresses and are in communication connection through the network switch 30, so as to construct a networked optical disc library, and the networked optical disc library can be conveniently constructed into an optical disc library cluster. The system architecture breaks the master-slave relationship between the server 40 and a specific optical disc library, and the optical disc library is no longer used as a peripheral device directly connected with a specific server 40. The whole optical disc library cluster is in an IP data stream environment, and resources can be shared to the greatest extent, so that the running performance and economy of the cluster are greatly improved.
Further, the system architecture of the present invention maximizes the removal of the large number of single points of failure (SPOF, single Point Of Failure) that exist in a conventional server 40/peripheral direct connection. A further advantage of the present invention is its high reliability and high availability. Many independent parallel network drives 60 will not affect the operation of other network drives 60 in the event of any individual failure. For server 40 and network attached storage, the system may be dynamically allocated, nor is there a single point of failure.
Alternatively, the network hard disk 20 may be separately provided or may be provided in the optical disc library 10. When the network hard disk 20 is disposed in the optical disc library 10, or the same server 40 manages a preset number of network hard disks 20 of different optical disc libraries 10, for example, the server 40 manages one or more network hard disks 20 in the optical disc library 10 and simultaneously manages one or more network hard disks 20 in the optical disc library 2.
FIG. 4 is an exploded view of a first perspective of a network optical drive using a fully networked optical disc library cluster according to one embodiment of the present invention. As shown in fig. 4, each network optical disc drive 60 includes an optical disc drive processor 61 and an optical disc drive 62, wherein a first SATA data interface 601 and a first SATA power interface 602 connected to the optical disc drive 62 are disposed on a side of the optical disc drive processor 61 facing the optical disc drive 62, the optical disc drive processor 61 communicates data with the optical disc drive 62 through the first SATA data interface 601, and the optical disc drive processor 61 supplies power to the optical disc drive 62 through the first SATA power interface 602.
In this embodiment, a small processor board (i.e., the optical drive processor 61) is provided for each optical drive 62, so as to implement networking of network optical discs.
Alternatively, the optical drive processor 61 is implemented by a general purpose RISC chip.
FIG. 5 is an exploded view of a second perspective of a network optical drive using a fully networked optical disc library cluster according to one embodiment of the present invention. In a further embodiment, as shown in fig. 5, a first network interface 603 and a first power interface 604 are disposed on a side of the optical disc drive processor 61 facing away from the optical disc drive, the first network interface 603 is communicatively connected to the switch, and the first power interface 604 is connected to a power supply of the optical disc library 10.
The optical drive group is typically configured with a plurality of optical drives, the standard interface of which is SATA, and the SATA interface is connected to the PCI bus adapter of the server 40 by a cable, typically in the prior art by a SAS high speed cable containing multiple SATA buses, to an adapter containing a SAS controller.
In this embodiment, one end of the optical disc drive processor 61 is connected to the SATA interface of the optical disc drive, and the other end is connected to an external network through a standard network interface. The optical drive processor 61 receives data through the network interface and writes the data to the optical disc through the SATA interface, and conversely, the optical drive processor 61 reads data from the optical disc through the SATA interface and transfers the data to an external network through the network interface.
Fig. 6 is an exploded view of a first perspective of a network hard disk with a fully networked optical disk library cluster according to one embodiment of the present invention. Similarly, in some embodiments of the present invention, as shown in fig. 6, each network hard disk 20 includes a hard disk processor 21 and a hard disk 22, where a side of the hard disk processor 21 facing the hard disk 22 is provided with a second SATA data interface 201 and a second SATA power interface 202 connected to the hard disk 22, the hard disk processor 21 communicates data with the hard disk 22 through the second SATA data interface 201, and the hard disk processor 21 supplies power to the hard disk 22 through the second SATA power interface 202.
Fig. 7 is an exploded view of a second perspective of a network hard disk with a fully networked optical disk library cluster according to one embodiment of the present invention. In a further embodiment, as shown in fig. 7, a second network interface 203 and a second power interface 204 are disposed on a side of the hard disk processor 21 facing away from the hard disk 22, where the second network interface 203 is communicatively connected to the switch, and the second power interface 204 is connected to the power supply of the optical disc library 10.
The above embodiment shows a specific implementation of the network hard disk 20. By arranging the network optical drive 60 and the network hard disk 20 in the similar connection form, only the SATA interface is arranged between the optical drive processor 61 and the optical drive or between the hard disk processor 21 and the hard disk, so that the network optical drive 60 and the network hard disk 20 are not limited by the length of SATA cable when being arranged, and the diversified arrangement of the whole cluster is facilitated.
In one embodiment, the server 40 is configured to send control instructions to the network hard disk 20 and the network optical disk drive 60 through the network to control writing of data in the network hard disk 20 onto an optical disk loaded in the network optical disk drive 60 or reading of data on an optical disk loaded in the network optical disk drive 60 into the network hard disk 20.
In a further embodiment, the server 40 is configured to send control instructions to the optical disc library controller 50 via the network to control loading of the optical disc into the network optical drive 60 or unloading of the optical disc in the network optical drive 60 via the optical disc library controller 50.
The server 40 can manage the network hard disk 20, the network optical drive 60 and the optical disc library controller 50 to execute corresponding actions.
In another embodiment, server 40 includes a hard disk cache for storing temporary data and a third network interface for interfacing with network switch 30. Network control data of the server 40 is transferred between the optical disc loaded into the network optical drive 60, the network hard disc 20 and the hard disc cache.
In the network architecture of the present invention, the server 40 network attached storage (hard disk cache) and the optical disc library 10 are in the same level of network environment. A small number of servers 40 can manage a plurality of optical disc libraries 10, and hard disc storage space for buffering data can be shared by the plurality of optical disc libraries 10 as required. The whole optical disc library cluster is in an IP data stream environment, the server 40 resources can be physical or virtual, the buffer data storage is the same, and the maximum sharing can be obtained.
In one embodiment, the plurality of servers 40 are configured to manage one or more of the same optical disc library controller 50, the same network optical drive 60, and the same network hard disk 20. So configured, when one server 40 managing the same optical disc library controller 50, the same network optical disc drive 60 and the same network hard disc 20 fails, the other server 40 can continue to manage, thereby ensuring cluster reliability.
In another embodiment, multiple servers 40 are configured to be backup to each other and automatically switch to another server 40 as the primary server 40 when one of the servers 40 fails. The embodiment can also achieve the effect of improving the reliability of the whole cluster by backing up the servers 40 with each other.
By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described herein in detail, many other variations or modifications of the invention consistent with the principles of the invention may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.
Claims (9)
1. A full networked optical disc library cluster, comprising:
each optical disc library comprises at least one optical disc library controller and a plurality of mutually independent network optical drives, each server, each optical disc library controller, each network hard disc and each network optical drive are provided with independent IP addresses and are in communication connection through the network switch, so that the corresponding relation between the server and the optical disc library, between the network optical drives and the network hard disc can be dynamically allocated; wherein,
the network CD-ROM and the network hard disk are configured under the same level of network switch and are provided with the same IP address section, the network CD-ROM and the network hard disk can be independently communicated, and data can be transferred between an optical disk loaded into the network CD-ROM and the network hard disk.
2. The fully networked optical disc library cluster of claim 1, wherein,
each network CD driver comprises a CD driver processor and a CD driver, one side of the CD driver processor facing the CD driver is provided with a first SATA data interface and a first SATA power interface which are connected with the CD driver, the CD driver processor is in data communication with the CD driver through the first SATA data interface, and the CD driver processor supplies power for the CD driver through the first SATA power interface.
3. The fully networked optical disc library cluster of claim 2, wherein,
the optical disk drive processor is provided with a first network interface and a first power interface on one side facing away from the optical disk drive, the first network interface is in communication connection with the switch, and the first power interface is connected with a power supply of the optical disk library.
4. The fully networked optical disc library cluster of claim 1, wherein,
each network hard disk comprises a hard disk processor and a hard disk, one side of the hard disk processor facing the hard disk is provided with a second SATA data interface and a second SATA power interface which are connected with the hard disk, the hard disk processor is in data communication with the hard disk through the second SATA data interface, and the hard disk processor supplies power for the hard disk through the second SATA power interface.
5. The fully networked optical disc library cluster of claim 4, wherein,
the hard disk processor is provided with a second network interface and a second power interface on one side facing away from the hard disk, the second network interface is in communication connection with the switch, and the second power interface is connected with a power supply of the optical disc library.
6. The fully networked optical disc library cluster of any one of claims 1-5,
the server is configured to send a control instruction to the network hard disk and the network optical drive through a network so as to control writing data in the network hard disk into an optical disk loaded in the network optical drive or reading data on the optical disk loaded in the network optical drive into the network hard disk.
7. The fully networked optical disc library cluster of any one of claims 1-5,
the server is configured to send a control instruction to the optical disc library controller through a network, so as to control the optical disc to be loaded into the network optical drive or unloaded from the network optical drive through the optical disc library controller.
8. The fully networked optical disc library cluster of any one of claims 1-5,
the server comprises a hard disk cache for storing temporary data and a third network interface for connecting with the network switch;
and the network control data of the server are transferred among the optical disk loaded in the network CD-ROM, the network hard disk and the hard disk cache.
9. The networked optical disc library cluster of claim 1,
the servers are configured to manage one or more of the same optical disc library controller, the same network optical disc drive and the same network hard disc, the servers are configured to be mutually backed up, and when one of the servers fails, the other server is automatically switched to serve as a main server.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1601485A (en) * | 2004-10-15 | 2005-03-30 | 清华大学 | Network optical disc database |
| CN101714376A (en) * | 2009-12-02 | 2010-05-26 | 苏州互盟信息存储技术有限公司 | Optical disk library array |
| CN201993756U (en) * | 2011-01-30 | 2011-09-28 | 上海北丞电子发展有限公司 | Blu-ray media asset management system |
| CN107967123A (en) * | 2017-12-03 | 2018-04-27 | 长沙瑞晓知识产权服务有限公司 | Portable network hard disk based on Cloud Server |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7613720B2 (en) * | 2004-12-07 | 2009-11-03 | International Business Machines Corporation | Selectively removing entities from a user interface displaying network entities |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1601485A (en) * | 2004-10-15 | 2005-03-30 | 清华大学 | Network optical disc database |
| CN101714376A (en) * | 2009-12-02 | 2010-05-26 | 苏州互盟信息存储技术有限公司 | Optical disk library array |
| CN201993756U (en) * | 2011-01-30 | 2011-09-28 | 上海北丞电子发展有限公司 | Blu-ray media asset management system |
| CN107967123A (en) * | 2017-12-03 | 2018-04-27 | 长沙瑞晓知识产权服务有限公司 | Portable network hard disk based on Cloud Server |
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