Licensing overview
Understand WEKA license types, capacity rules, and status checks.
Learn how WEKA licenses define cluster usage, capacity limits, and runtime validation. Use this page to understand license types, capacity rules, and status output in the GUI and CLI.
Apply these licensing rules:
Only one license can be active on a cluster at a time.
Applying a new license replaces the existing one.
Licenses are subscription-based rather than perpetual.
A valid license is required to start a newly configured cluster.
A classic license is a text-based file generated through get.weka.io for a specific cluster.
License types
WEKA uses a modular licensing model where specific editions serve as the foundation, while add-ons provide supplemental functionality.
XPS
Extreme Performance and Scale Performance Edition
Core
Flash-tier license for on-premises environments that includes POSIX, S3, SMB, NFS, and GDS protocol support. Includes local snapshot capability.
XCL
Extreme Performance and Scale Hybrid Cloud Edition
Core
Flash-tier license for hybrid cloud environments that includes POSIX, S3, SMB, NFS, and GDS protocol support. Includes local snapshot capability and local Snap-To-Object capability for one local object store repository.
DPO
WEKA Data Protection Option
Add-on
Add-on data protection license for XPS and XOS deployments. Includes tiering, local and remote Snap-To-Object, and synchronous snapshots.
XOS
Extreme Performance Object Edition
Standalone / Add-on
Use XOS as an alternative to XPS if the cluster operates exclusively as an S3 target. Use XOS with DPO if the cluster also needs to offload snapshots to a third-party object store. Includes local snapshot capability.
DEO
Data Efficiency Option
Add-on
Add-on data efficiency license for XPS deployments. Enables cluster-wide data reduction on a per-filesystem basis.
License properties
Identify the key attributes and capacity limits defined within each license.
Cluster GUID
Unique identifier assigned during cluster installation.
Expiry date
End of the licensed usage period.
Usable capacity
Licensed usable flash capacity in TB.
Object-store capacity
Licensed object-store capacity for DPO license.
Data Efficiency Option
Shows whether the DEO license is enabled or disabled.
XPS, XCL and XOS capacity
The license size in TB must equal or exceed the total usable capacity of all NVMe flash drives in the cluster, rounded up to the nearest TB. Usable capacity is the space available for filesystems after accounting for erasure encoding, hot spares, and reserved overhead.
Consumption changes when adding or removing NVMe drives or virtual hot spares. If the usable capacity rounded up to the nearest TB exceeds the license value, the cluster reports a license conflict.

DPO capacity
The DPO license size must equal or exceed the total object-store capacity consumed across all tiered filesystems.
Use the following formula to determine consumption for a tiered filesystem:
DPO consumption=Total filesystem capacity−Allocated NVMe drive capacity
Apply these DPO rules:
If both DPO and XOS licenses are active, the total licensed object-store capacity is the sum of both. For example, 4 TB DPO and 1 TB XOS provide 5 TB of total object-store capacity.
As a best practice, keep the DPO license size no greater than four times the XPS license size.
DPO consumption changes when you increase or decrease the total capacity or allocated NVMe capacity of a tiered filesystem.
Example: A tiered filesystem with a total capacity of 1,000 TB and 200 TB of allocated NVMe capacity consumes an 800 TB DPO license.
XOS license
XOS capacity is calculated identically to XPS. The license size must equal or exceed the total usable capacity of all NVMe flash drives in the cluster, rounded up to the nearest TB.
Use XOS as an alternative license if the cluster operates exclusively as an S3 target. Use XOS with DPO if the cluster also needs to offload snapshots to a third-party object store.
Related topics
Display the license status
Check license status after you apply, update, or troubleshoot a license.
Using the GUI
The License page in Cluster Settings displays the current license details, including the license mode, expiry date, usable capacity, object-store capacity, and data reduction status.
To display the license status:
From the menu, select Configure > Cluster Settings.
From the Cluster Settings pane, select License.

Using the CLI
Display the license status using one of the following commands:
weka cluster license: Displays current license properties.weka status: Displays cluster status, license state, and expiry date.weka alerts: Displays relevant license alerts.
Example: License status using weka cluster license
The raw drive capacity field is displayed for informational purposes. License validation is based on usable capacity only.
Example: License status using weka status
Example: License status when the cluster has no valid license
Common alert examples
Example: License alert when no license is assigned
Example: License alert when insufficient XPS license is assigned
Example: License alert when insufficient DPO license is assigned
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