# Manage filesystem groups

A filesystem group defines the policy of the drive retention period and the tiering cue time. The Weka system can include up to eight filesystem groups.

**Related topics**

[Filesystems, object stores, and filesystem groups](/4.0/overview/filesystems.md)

[Manage filesystem groups using the GUI](/4.0/fs/managing-filesystem-groups/managing-filesystem-groups.md)

[Manage filesystem groups using the CLI](/4.0/fs/managing-filesystem-groups/manage-filesystem-groups-using-the-cli.md)


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