How StorageGRID ILM rules manage objects

The grid administrator creates information lifecycle management (ILM) rules to manage object data ingested into the StorageGRID system from S3 REST API client applications. These rules are then added to the ILM policy to determine how and where object data is stored over time.

ILM settings determine the following aspects of an object:

Geography
The location of an object’s data, either within the StorageGRID system (storage pool) or in a Cloud Storage Pool.
Storage grade
The type of storage used to store object data: for example flash or spinning disk.
Loss protection
How many copies are made and the types of copies that are created: replication, erasure coding, or both.
Retention
The changes over time to how an object’s data is managed, where it is stored, and how it is protected from loss.
Protection during ingest
The method used to protect object data during ingest: synchronous placement (using the Balanced or Strict options for Ingest Behavior), or making interim copies (using the Dual commit option).

ILM rules can filter and select objects. For objects ingested using S3, ILM rules can filter objects based on the following metadata:

For more information about ILM, see "Managing objects through information lifecycle management" in the instructions for administering StorageGRID.