In general nas is less expensive to purchase and maintain, although a highend nas will cost more than an entrylevel san. Basically what you need to know if if your computer can mount the drive space as presented by the sannas in question. At its simplest, the difference between a nas storage abstraction and a san storage abstraction is that nas systems offer file system functionality to their clients and san systems do not. Using a software program provided with the nas hardware, a network administrator can set up automatic or manual backups and file copies between the nas and the other connected devices. Therefore, a nas device is also useful for the opposite reasonto offload local data to the network storage devices larger storage container.
Conference paper pdf available february 2016 with 1,112 reads. An improvement on the traditional storage model is to use network attached storage nas. Ethernet media using an io protocol called iscsi is emerging in 2001. A storage area network san provides a pool of storage resources that can be centrally managed and allocated as needed, but how is a san different. Performance analysis of nas and san storage for scientific workflow.
This can be overcome, even reversed by the internal design using higher. Preston exams each technology with a vendor neutral approach, starting with the building blocks of a san and how they can be assembled for effective storage solutions. Storage area networks sans and network attached storage nas allow organizations to manage and back up huge file systems quickly. Figure1 middle where physical disk drives are attached to a server. Anjan dave, principal storage engineer, lsi corporation. Thats important, especially inside a storage array with 15 hard drives. Using sans, for instance, is a way to share multiple devices tape drives and disk drives for storage, while nas is a means for centrally storing files so they can be shared. Sans are more complex to manage with fc sans on top of the complexity heap.
File storage types and protocols for beginners youtube. Using sans, for instance, is a way to share multiple devices tape drives and disk drives for storage, while nas is a means for centrally storing files so they can. Pdf performance analysis of nas and san storage for scientific. If youre looking for a free download links of using sans and nas. Nas in general nas is less expensive to purchase and maintain, although a highend nas will cost more than an entrylevel san. Introduction to storage area networks ibm redbooks. Help for storage administrators pdf, epub, docx and torrent then this site is not for you. Pdf this chapter identifies characteristics, architectural concepts, technologies, applications, and marketplace of storage area networks sans. Today, most sans use fibre channel media, providing an anytoany connection for processors and storage on that network. From a san perspective, a sanattached nas engine is treated just like any other server. Faced with the lack of a practical technology that would interconnect theses server, the industry gave birth to a high speed fibrechannel technology which in turn.
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