1.6. Feature Compatibility Support
Red Hat Gluster Storage supports a number of features. Most features are supported with other features, but there are some exceptions. This section clearly identifies which features are supported and compatible with other features to help you in planning your Red Hat Gluster Storage deployment.
Important
Virtual Data Optimizer (VDO) volumes, which are supported in Red Hat Enterprise Linux 7.5, are not currently supported in Red Hat Gluster Storage. VDO is supported only when used as part of Red Hat Hyperconverged Infrastructure for Virtualization 2.0. See Understanding VDO for more information.
Features in the following table are supported from the specified version and later.
Table 1.4. Features supported by Red Hat Gluster Storage version
| Feature | Version |
|---|---|
| Arbiter bricks | 3.2 |
| Bitrot detection | 3.1 |
| Erasure coding | 3.1 |
| Google Compute Engine | 3.1.3 |
| Metadata caching | 3.2 |
| Microsoft Azure | 3.1.3 |
| NFS version 4 | 3.1 |
| SELinux | 3.1 |
| Sharding | 3.2.0 |
| Snapshots | 3.0 |
| Snapshots, cloning | 3.1.3 |
| Snapshots, user-serviceable | 3.0.3 |
| Tiering (Deprecated) | 3.1.2 |
| Volume Shadow Copy (VSS) | 3.1.3 |
Table 1.5. Features supported by volume type
| Volume Type | Sharding | Tiering (Deprecated) | Quota | Snapshots | Geo-Rep | Bitrot |
|---|---|---|---|---|---|---|
| Arbitrated-Replicated | Yes | No | Yes | Yes | Yes | Yes |
| Distributed | No | Yes | Yes | Yes | Yes | Yes |
| Distributed-Dispersed | No | Yes | Yes | Yes | Yes | Yes |
| Distributed-Replicated | Yes | Yes | Yes | Yes | Yes | Yes |
| Replicated | Yes | Yes | Yes | Yes | Yes | Yes |
| Sharded | N/A | No | No | No | Yes | No |
| Tiered (Deprecated) | No | N/A | Limited[a] | Limited[a] | Limited[a] | Limited[a] |
Note
Red Hat Gluster Storage is not supported on Red Hat Enterprise Linux 6 (RHEL 6) from 3.5 Batch Update 1 onwards.
Table 1.6. Features supported by client protocol
| Feature | FUSE | Gluster-NFS | NFS-Ganesha | SMB |
|---|---|---|---|---|
| Arbiter | Yes | Yes | Yes | Yes |
| Bitrot detection | Yes | Yes | No | Yes |
| dm-cache | Yes | Yes | Yes | Yes |
| Encryption (TLS-SSL) | Yes | Yes | Yes | Yes |
| Erasure coding | Yes | Yes | Yes | Yes |
| Export subdirectory | Yes | Yes | Yes | N/A |
| Geo-replication | Yes | Yes | Yes | Yes |
| Quota (Deprecated)
Warning
Using QUOTA feature is considered to be deprecated in Red Hat Gluster Storage 3.5.3. Red Hat no longer recommends to use this feature and does not support it on new deployments and existing deployments that upgrade to Red Hat Gluster Storage 3.5.3.
| Yes | Yes | Yes | Yes |
| RDMA (Deprecated)
Warning
Using RDMA as a transport protocol is considered deprecated in Red Hat Gluster Storage 3.5. Red Hat no longer recommends the use of this feature, and does not support it on new deployments and existing deployments that upgrade to Red Hat Gluster Storage 3.5.3.
| Yes | No | No | No |
| Snapshots | Yes | Yes | Yes | Yes |
| Snapshot cloning | Yes | Yes | Yes | Yes |
| Snapshot mount | Yes | No | No | No |
| Tiering (Deprecated)
Warning
Using tiering feature is considered deprecated in Red Hat Gluster Storage 3.5. Red Hat no longer recommends the use of this feature, and does not support it on new deployments and existing deployments that upgrade to Red Hat Gluster Storage 3.5.3.
| Yes | Yes | N/A | N/A |
