What an information lifecycle management rule is

An information lifecycle management (ILM) rule determines how the StorageGRID Webscale system stores object data over time. You configure ILM rules and then add them to an ILM policy.

ILM rules determine:

Object metadata is not managed by ILM rules. Instead, object metadata is stored in a Cassandra database in what is known as a distributed key value store. Three copies of object metadata are automatically maintained at each site to protect the data from loss. The copies are load balanced across all Storage Nodes.