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The VeritasTM Cluster File System: Technology and Usage
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Distributed applications with dynamic computing and I/O demands benefit greatly from simultaneous access to shared data from multiple servers, particularly if performance continues to scale nearly linearly when new applications and servers are added to the mix. Symantec’s primary motivation in developing the Cluster File System (CFS) has been to meet the file storage requirements for this high growth market, as major applications evolve to be more distributed, taking advantage of modern datacenter “scale out” architectures.
Today, the most popular use case for CFS is active-passive clustering of single node applications. In this scenario, CFS enables failover times that are as much as 90% lower than single node file system solutions. Increasingly, however, the growth in CFS deployments is coming from applications that take advantage of the consistent simultaneous access to file data from multiple cluster nodes. These applications include clustered database management systems, messaging applications, workflow managers, video streaming, risk analysis, business intelligence, and more.
In addition, an increasing number of users are replacing NFS servers with CFS clusters that run applications directly on the servers that provide file access, for improved reliability and data consistency, as well as elimination of the network bottlenecks often seen with NFS based file storage solutions.
Other users retain the NFS file server data center architecture, but replace NAS systems with CFS-based CNFS servers to improve price-performance, scalability and flexibility. In effect, with the introduction of CNFS, CFS is commoditizing NAS while it improves scalability and quality of service.
Still other users choose CFS because it supports the top three enterprise UNIX platforms as well as Linux. This enables them to standardize data management and operating procedures across the data center, no matter which UNIX platforms they use. Finally, some users choose CFS-based solutions because they support more disk arrays than any other suite, making it possible for users to fully exploit their storage hardware investments.
David Noy - Personal Name
1st Edtion
0-321-446100
NONE
The VeritasTM Cluster File System: Technology and Usage
Management
English
Symantec Corporation.\\
2010
USA
1-252
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