Licensing Swarm

A license based on the contractually agreed amount of storage space purchased for the cluster is received when Swarm is purchased. The license.url parameter in the node or cluster configuration file indicates the location of the license file.

Important

Swarm licenses are based on raw usage and the total footprint on disk. Increasing the number of replicas or EC parity segments increases the footprint, which has the effect of decreasing the net space the license supports.

Swarm performs the following to evaluate the licensing:

Swarm starts with the default trial license, which is 2 TB per cluster for non-CSN clusters.
Swarm attempts to read the license file from the location specified by license.url.
The license file is /caringo/license.txt on the node's USB flash drive or in the configuration file on the web or FTP server by default.
Swarm uses the file specified by license.url if valid. The storage capacity is set to 0 if invalid.

Note

Swarm uses the last valid license if Swarm fails to read the license specified by license.url (the file is on a web server that is temporarily unavailable).