HDFS (Hadoop Distributed File System) stores a large amount of data placed across multiple machines, typically in hundreds and thousands of simultaneously connected nodes, and provides data reliability by replicating each data instance as three different copies - two in one group and one in another. These copies may be replaced, in the event of failure.
The leading All-Flash NVMe Storage in the industry, featuring up to 30 NVMe SSDsLearn more
The leading SAS12G JBOD/JBOF storage in the industry, featuring up to 30 hot-pluggable HDD/SSDs with redundant data pathsLearn more
Gartner does not endorse any vendor, product or service depicted in its research publications, and does not advise technology users to select only those vendors with the highest ratings. Gartner research publications consist of the opinions of Gartner's research organization and should not be construed as statements of fact. Gartner disclaims all warranties, expressed or implied, with respect to this research, including any warranties of merchantability or fitness for a particular purpose.