Control Center application data storage requirements

Control Center uses an LVM thin pool to store tenant (application) data. LVM thin pools include separate storage areas for data and for metadata. For each tenant it manages, Control Center maintains a separate virtual device (a volume) in the data storage area of its LVM thin pool. Also, Control Center creates virtual devices in the data storage area for snapshots of tenant data.

To ensure consistency, Control Center requires the following, minimum amount of free space in its thin pool:
  • 3GiB available for each tenant volume
  • 3GiB available in the data storage area
  • 62MiB available in the metadata storage area
  • The total amount of metadata storage must be 1% of total data storage