Home > Storage > PowerScale (Isilon) > Product Documentation > Data Efficiency > Next-Generation Storage Efficiency with Dell PowerScale Inline Data Reduction > Enabling inline deduplication
Since inline deduplication configuration is binary, either on or off across a cluster, it can be easily controlled using the OneFS command-line interface (CLI). For example, the following syntax will enable inline deduplication and verify the configuration:
# isi dedupe inline settings view
Mode: disabled
# isi dedupe inline settings modify –-mode enabled
# isi dedupe inline settings view
Mode: enabled
Note: Inline deduplication is enabled by default for new clusters running OneFS 9.4 and supporting inline data reduction. For earlier OneFS releases, inline deduplication is disabled by default. When upgrading to OneFS 9.4, a cluster’s existing inline deduplication configuration is preserved.
Cluster configuration | Inline deduplication | Inline compression |
New cluster running OneFS 9.4 | Enabled | Enabled |
New cluster running OneFS 9.3 or earlier | Disabled | Enabled |
Cluster with inline deduplication enabled that is upgraded to OneFS 9.4 | Enabled | Enabled |
Cluster with inline deduplication disabled that is upgraded to OneFS 9.4 | Disabled | Enabled |