Cloud computing

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Linear Tape File System (LTFS) Format Specification

The LTFS Format Specification defines a file system format separate from any implementation on data storage media. Using this format, data is stored in LTFS Volumes. An LTFS Volume holds data files and corresponding metadata to completely describe the directory and file structures stored on the volume.
 
The LTFS Format has these features:

  • An LTFS Volume can be mounted and volume content accessed with full use of the data without the need to access other information sources.
  • Data can be passed between sites and applications using only the information written to an LTFS Volume.
  • Files can be written to, and read from, an LTFS Volume using standard POSIX file operations.

The LTFS Format is particularly suited to these usages:

  • Data export and import.
  • Data interchange and exchange.
  • Direct file and partial file recall from sequential access media. Archival storage of files using a simplified, self-contained or “self-describing” format on sequential access media.
LTFS v2.5

LTFS Bulk Transfer Version 1.0

The LTFS Bulk Transfer standard defines a method by which a set of files, directories and objects from a source system can be transferred to a destination system.  The bulk transfer of large quantities of data is well suited for LTFS due to the economic and environmental characteristics of tape. Building on top of the LTFS format, a standardized method for transferring data is defined that provides many advantages.

LTFS Bulk Transfer v1.0

Telecommunications Infrastructure Standard for Data Centers

This Standard specifies the minimum requirements for telecommunications infrastructure of data centers and computer rooms, including single tenant enterprise data centers and multi-tenant data centers. The topology specified in this document is intended to be applicable to any size data center.

TIA-942 Revision B

Cloud computing - Functional architecture of Big Data as a Service

Recommendation ITU-T Y.3519 describes the functional architecture for big data as a service (BDaaS). The functional architecture is defined on the basis of the analysis of requirements and activities of cloud computing-based big data described in Recommendation ITU-T Y.3600.
 
Following the methodology of Recommendation ITU-T Y.3502, the BDaaS functional architecture is described from a set of functional components and cross-cutting aspects. The specified functional components consist of sets of functions that are required to perform the BDaaS activities for the roles and sub-roles described in Recommendation ITU-T Y.3600.

Y.3519

Cloud computing - Functional requirements of Network as a Service

Recommendation ITU-T Y.3512 describes the concept of Network as a Service (NaaS) and its functional requirements. It provides typical use cases of NaaS and specifies the functional requirements of three aspects, ranging from NaaS application, NaaS platform and NaaS connectivity which are based on the corresponding uses cases and cloud capabilities types.

Y.3512