Table 3 Feature analysis of selected DFSs
From: A survey on data storage and placement methodologies for Cloud-Big Data ecosystem
DFS | Version | FileSystem | Technical features | |||||
|---|---|---|---|---|---|---|---|---|
Architecture | Sharding | Elasticity | CAP | Replication | Big Data adapter | |||
NFS | 4.2 | Client–server | Fully-centralized | Index/range | No | CA | Block level | 3rd party |
GlusterFS | 4.0 | Client–server | Fully-centralized | Automatic | Yes | CA | Node level | Native |
HDFS | 3.0.1 | Clustered-distributed | Less-centralized | Fixed size | Yes | AP | Block level | Native |
CephFS | 12.2.5 | Clustered-distributed | Less-centralized | Index/range | Yes | CP | Cluster-level | Native/3rd party |
Ivy | 0.3 | Symmetric | Fully-distributed | DHash | Yes | AP | Block-level | – |
PVFS | 2.0 | Symmetric | Fully-distributed | Hash | Yes | AP | – | 3rd party |