What is true about scale-out NAS storage architecture?

Question

Options

• AGrows file system dynamically as nodes are added to the system
• BRestricts scalability to the limits of the storage controllers
• CProvides fixed storage capacity that limits scalability
• DScales the capacity within a single NAS storage system

• A
  3% (2)
• B
  10% (6)
• C
  5% (3)
• D
  81% (48)

Explanation

An OSD storage system is an object-based storage system that stores data as objects rather than files or blocks. An OSD storage system consists of OSD nodes that have two key services: metadata service and storage service. The metadata service is responsible for generating the object ID from the contents of a file. The object ID is a unique identifier that represents the data and its attributes. The metadata service also maintains the mapping of the object IDs and the file system namespace. The file system namespace is a logical structure that organizes files into directories and subdirectories. The storage service manages a set of disks on which the user data is stored. The storage service stores data as objects in physical OSD containers. Each OSD container has a unique address that corresponds to an object ID. The storage service also handles requests from clients to read or write data to or from objects.

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