User storage pools

All user data for a file is stored in the assigned storage pool as determined by your file placement rules.

In addition, file data can be migrated to a different storage pool according to your file management policies. For more information on policies, see Policies for automating file management.

A user storage pool contains only the blocks of data (user data, for example) that make up a user file. GPFS stores the data that describes the files, called file metadata, separately from the actual file data in the system storage pool. You can create one or more user storage pools, and then create policy rules to indicate where the data blocks for a file should be stored.

For more information see File heat: Tracking file access temperature.