• Journal of the Korea Institute of Information Security & Cryptology
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• v.25 no.3
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• pp.585-594
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• 2015

As the storage market has been expanded due to growing data size, the research on various kinds of storages such as cloud, USB, and external HDD(Hard Disk Drive) has been conducted in digital forensic aspects. NAS(Network-Attached Storage) can store the data over one TB(Tera Byte) and it is well used for private storage as well as for enterprise, but there is almost no research on NAS. This paper selects three NAS products that has the highest market share in domestic and foreign market, and suggests the process and method for data acquisition in live NAS System.

• Journal of the Korea Society of Computer and Information
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• v.10 no.4 s.36
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• pp.221-228
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• 2005

Data storage was thought to be inside of or next to server cases but advances in networking technology make the storage system to be located far away from the main computer. In Internet era with explosive data increases, balanced development of storage and transmission systems is required. SAN(Storage Area Network) and NAS(Network Attached Storage) reflect these requirements. It is important to know the capacity and limit of the complex storage network system to got the optimal performance from it. The capacity data is used for performance tuning and making purchasing decision of storage. This paper suggests an analytic model of storage network system as queuing network and proves the model though simulation model.

• Journal of the Korea Computer Industry Society
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• v.5 no.1
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• pp.101-108
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• 2004

As the dependency to network system and demands of efficient storage systems rapidly grows in every networking filed, the current trends initiated by explosive networked data grow due to the wide-spread of internet multimedia data and internet requires a paradigm shift from computing-centric to data-centric in storagesystems. Furthermore, the new environment of file systems such as NAS(Network Attached Storage) and SAN(Storage Area Network) is adopted to the existing storage paradigm for Providing high availability and efficient data access. We describe the design issues and system components of SANiqueTM, which is the cluster file system based on SAN environment. SANiqueTM has the capability of transferring the user data from the network-attached SAN disk to client applications directly We, especially, present the protocol and functionality of the global buffer manager in our cluster file system.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.23 no.11
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• pp.1330-1336
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• 2019

As the Fourth Industrial Revolution era began, a variety of devices are running on the cloud. These various devices continue to generate various types of data or large amounts of multimedia data. To handle this situation, a large amount of storage is required, and big data technology is required to process stored data and obtain accurate information. NAS (Network Attached Storage) or SAN (Storage Area Network) technology is typically used to build high-speed, high-capacity storage in a network-based environment. In this paper, we propose a method to construct a mass storage device using Network-DAS which is an extension technology of DAS (Direct Attached Storage). Benchmark experiments were performed to verify the scalability of the storage system with 76 HDD. Experimental results show that the proposed high performance mass storage system is scalable and reliable.

• Proceedings of the Korean Information Science Society Conference
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• 2004.04a
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• pp.190-192
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• 2004

본 논문은 리눅스 기반의 저장장치 시스템인 NAS (Network Attached Storage)의 기능을 향상시키기 위해 NDMP (Network Data Management Protocol)를 지원하는 NDMPv3 서버모듈을 개발하고 이를 NAS에 탑재한 시스템 구성에 관한 연구이다. 본 논문에서 개발한 NDMPv3 서버모듈은 NDMP 버전 3 표준 SDK(Software Development Kit)를 기반으로 개발되었으며 NDMP 버전 2와의 호환이 가능하도록 개발하였다. 본 논문에서 제시한 결과물은 표준 NDMP Control을 이용하여 NDMPv3 서버모듈을 통해 저장장치에서 테이프 드라이브로 백업/복구를 수행 할 수 있는 상태이다.

• Management & Information Systems Review
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• v.11
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• pp.45-69
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• 2002

One of important technology that must improve compulsorily on information-oriented society stores, search and transmit cultural contents data of great quantity in heterogeneous environment. SAN appeared by solution to resolve the problem such as integration management of heterogeneous system data, effective practical use of storage, data transmission limit is happened from here. SAN is system that manage and shares data of large quantity efficiently attaching directly to high speed network such as Fiber Channel that storage system has been attached to server individually SAN became more complicated than existent storage environment although offer much advantage such as decrease of storage expense and flexibility of system configuration. This study argues management way could consider in such environment that understand complexity and component of networked storage system.

• 프린팅코리아
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• v.14 no.10
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• pp.80-81
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• 2015

시놀로지(Synology, www.synology.com)가 지난 9월 17일 시놀로지 컨퍼런스를 통해 차세대 NAS(Network Attached Storage) 운영체제인 디스크스테이션 매니저(이하 DSM) 6.0 베타 버전과 하반기 출시 예정 신제품인 DS716+, DS216play, NVR216 등을 공개했다.

• Proceedings of the Korean Information Science Society Conference
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• 2003.10c
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• pp.655-657
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• 2003

최근 네트워크의 발전과 더불어 정보의 크기는 점점 커져 가고 있으며 이를 효율적으로 공유하고 관리하는 것은 매우 중요한 일이다. 지속적으로 커지고 있는 방대한 양의 정보를 현재와 같이 하나의 디스크에서 관리하는 것은 많은 한계점을 가지고 있는데 이를 네트워크를 통한 여러 개의 디스크를 공유하는 SAN(Storage area Network)과 NAS(Network Attached Storage)의 방법을 통하여 해결 할 수 있다. SAN은 디스크와 클라이언트를 직접 연결하여 서비스를 제공하기 때문에 좋은 성능을 보이지만. 디스크와 클라이언트를 연결하는 장치의 가격이 비싼 단점이 있다. 이 논문에서는 기존의 SAN장치보다 저렴한 가격의 IEEE1394a 네트워크를 이용하여 SAN을 구성하고 NAS(NFS)와의 성능 비교를 하였으며, IEEE1394a 네트워크의 저가의 SAN으로의 성능적 측면에서의 가능성과 문제점을 알아보았다.

• Proceedings of the Korean Information Science Society Conference
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• 2004.10a
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• pp.664-666
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• 2004

최근 업무에 컴퓨터를 이용하는 사례가 늘어나고, 각종 컨텐츠 서비스업계가 발전하면서 독립적인 파일 서버 기능만을 처리하도록 만든 네트워크 저장장치인 NAS(Network Attached Storage)의 이용이 점차 증가하는 추세에 있다. NAS는 기존 파일서버의 문제점을 보완하면서 이기종 플랫폼간의 파일 공유, 스토리지 확장성, 관리 용이성 등을 특징으로 한다. 그러나 NAS 시스템에 장애가 발생할 경우에는 막대한 경제적인 손실이 발생하게 된다. 따라서 본 논문에서는 NAS 시스템 장애가 발생하였을 때, 효율적으로 장애를 복구할 수 있는 HA(High Availability) NAS 시스템을 설계 및 구현하고, 다양한 장애 상황에서 NAS를 이용하는 서비스가 중단 없이 제공되는 것을 확인하였다

• Proceedings of the IEEK Conference
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• 2008.06a
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• pp.1177-1178
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• 2008

This paper presents a network-attached WORM(Write Once Read Many) storage system whose purpose is to protect sensitive data that should not be accessed by accidental/intentional intrusion. In our storage system, the sensitive data would be marked and be stored into a specific WORM volume. Furthermore, with the associated WORM mark, the data whose WORM life cycle has been expired would automatically be moved to the general-purpose disk space, without interfering any other tasks, to save the WORM volume space. Our WORM storage system was integrated to the NAS product.