Examining application data storage status

Beginning with release 1.3.0, Control Center initiates an emergency shutdown when the minimum required amounts of free space are not available in the serviced thin pool or tenant volumes. For more information, see Control Center application data storage requirements.

Use this procedure to display the amount of free space in a Control Center thin pool and tenant volumes, to determine how much space is available in the LVM volume group that contains the thin pool, and to determine whether additional steps are required.

  1. Log in to the master host as root, or as a user with superuser privileges.
  2. Display the amount of space available in the serviced thin pool.
    serviced volume status
    Figure 1. Example output with highlighted values
    The result includes detailed information about the serviced thin pool and each tenant volume.
    • If the amount of free space in the serviced thin pool is sufficient, stop. No further action is required.
    • If the amount of free space in the data or metadata portions of the serviced thin pool is not sufficient, perform the following steps.
  3. Identify the volume group to which the serviced thin pool belongs.
    lvs --options=lv_name,vg_name,lv_size
    The volume group associated with serviced-pool contains the serviced thin pool.
  4. Display the amount of free space in the volume group that contains the serviced thin pool.
    Replace Volume-Group with the name of the volume group identified in the previous step:
    vgs --no-headings --options=vg_free Volume-Group
    • If the amount of free space in the volume group is not sufficient to increase one or both of the storage areas of the serviced thin pool to their required minimums, add physical or logical storage to the volume group. For more information, see Adding space to the data area of a Control Center thin pool.
    • If the amount of free space in the volume group is sufficient to increase one or both of the storage areas of the serviced thin pool to their required minimums, proceed to the next step
  5. Increase the free space in one or both areas of the serviced thin pool.