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

FeatureVersion
Arbiter bricks3.2
Bitrot detection3.1
Erasure coding3.1
Google Compute Engine3.1.3
Metadata caching3.2
Microsoft Azure3.1.3
NFS version 43.1
SELinux3.1
Sharding3.2.0
Snapshots3.0
Snapshots, cloning3.1.3
Snapshots, user-serviceable3.0.3
Tiering (Deprecated)3.1.2
Volume Shadow Copy (VSS)3.1.3

Table 1.5. Features supported by volume type

Volume TypeShardingTiering (Deprecated)QuotaSnapshotsGeo-RepBitrot
Arbitrated-ReplicatedYesNoYesYesYesYes
DistributedNoYesYesYesYesYes
Distributed-DispersedNoYesYesYesYesYes
Distributed-ReplicatedYesYesYesYesYesYes
ReplicatedYesYesYesYesYesYes
ShardedN/ANoNoNoYesNo
Tiered (Deprecated)NoN/ALimited[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

FeatureFUSEGluster-NFSNFS-GaneshaSMB
ArbiterYesYesYesYes
Bitrot detectionYesYesNoYes
dm-cacheYesYesYesYes
Encryption (TLS-SSL)YesYesYesYes
Erasure codingYesYesYesYes
Export subdirectoryYesYesYesN/A
Geo-replicationYesYesYesYes
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.
YesYesYesYes
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.
YesNoNoNo
SnapshotsYesYesYesYes
Snapshot cloningYesYesYesYes
Snapshot mountYesNoNoNo
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.
YesYesN/AN/A