IBM Spectrum NAS is software than can be installed on bare metal servers, in virtual machines, or in public clouds to cluster nodes together and provide file services. Spectrum NAS is a scale out solution, able to scale from four to hundreds of nodes. The scale out capability gives customers a solution to optimize performance, capacity and cost to meet file serving demands. IBM Spectrum Scale is a parallel scale out file system aimed at large scale file needs and high performance. IBM Spectrum NAS is a scale out file system aimed at more traditional enterprise uses.
NFS and native CIFS/SMB protocols are supported with file sharing and file locking. Metro Cluster is a feature of IBM Spectrum NAS that enables active-active stretched clusters using synchronous replication over metro distances.
IBM Spectrum NAS will depend heavily on the hardware where it is installed. A node contains processor, DRAM, network interfaces, captive storage, and caching devices. IBM does not provide a pre-integrated system. Complete solutions will either be done by the customer or by resellers and integrators. The first offering was made in February of 2018.
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