Scaling Namespaces and Optimizing Data Storage
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HDFS storage types

HDFS storage types can be used to assign data to different types of physical storage media.

The following storage types are available:

  • DISK: Disk drive storage (default storage type)

  • ARCHIVE: Archival storage (high storage density, low processing resources)

  • SSD: Solid State Drive

  • RAM_DISK: DataNode Memory

If no storage type is assigned, DISK is used as the default storage type.