NAS

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NAS

Abbreviation for:
Normative Aging Study
Narcotics Assistance Section
National Acceptor Survey
National Asthma Survey
National Autistic Society 
new active substance 
no abnormality seen
nucleic acids
nucleoside analogues
nucleus accumbens septum

NAS

1. Neonatal abstinence syndrome. See Neonatal withdrawal syndrome.
2. No abnormalities seen.

National Academy of Sciences

, National Academies,

NAS

An organization comprising a selected group of honored or distinguished engineers and scientists who are called upon to review and explore the uses of science and technology as they may further or enlighten national interests in the U.S.
References in periodicals archive ?
NAS Gateways were developed to address all of the limitations of traditional approach with fully integrated solutions that deliver high-performance, high-availability file serving, NAS-SAN integration and server consolidation.
Users can simplify the installation process with NAS Gateways that are fully preintegrated with the NAS software and required system-specific middleware software layer for a plug and play exper-ience.
NAS gateways can be easily deployed as clustered systems to protect against the complete failure of any individual system.
Microsoft Windows Storage Server 2003 is the ideal software platform for NAS Gateways that deliver the performance, scalability, availability and flexibility to take advantage of the feature-rich WSS 2003 environment for departmental, data center and remote sites.
Before deploying the NAS Gateway, the university's storage infrastructure was based on a combination of file servers and direct attached storage.
According to the company, 2Tb of data are stored via the ONStor Bobcat on a number of enterprise arrays; the NAS Gateways are clustered between two sites and operate over two Fibre Channel fabrics.
In the meantime, the NAS gateway is a solid interim step.
Although some storage vendors offer hybrid devices that combine NAS and SAN, the more common solution is to use NAS gateways. NAS gateways consist of NAS appliances that connect to SAN storage through a Fibre Channel port, providing both file-and block- based data storage that is manageable, flexible and scalable.
NAS gateways help storage administrators to centralize distributed storage, and users do not have to give up NAS advantages.
However, vendors have still managed to come close by putting NAS gateways in front of the SAN and using SAN filers.