Increasing the Metadata Reserved Space

After upgrading to StorageGRID Webscale 11.1, you should increase the value for Metadata Reserved Space (CAWM) from 2 TB to 3 TB, if possible, to ensure that each Storage Node has adequate space available for essential database operations, such as compaction. Increasing the Metadata Reserved Space by 1 TB reduces the space available for object storage on storage volume 0 by 1 TB.

Before you begin


  1. Sign in to the Grid Manager using a supported browser.
  2. Ensure you have at least 1 TB of available space on storage volume 0 of each Storage Node.
    1. Select Nodes.
    2. Select the first Storage Node in your grid.
    3. Select the Storage tab.
    4. In the Volumes section, ensure that rangebd/0 has at least 1 TB (1,000 GB) of Available space.
    5. Repeat these steps for all Storage Nodes.
      • If one or more Storage Nodes does not have enough available space, the Metadata Reserved Space value cannot be increased. Do not proceed further with this procedure. The existing Metadata Reserved Space value will continue to be used.
      • If all Storage Nodes have at least 1 TB of available space, go to the next step.
  3. Select Configuration > Storage Options.
  4. Select the Configuration tab.
  5. In the Storage Watermarks section, select Metadata Reserved Space.
  6. Change the value to 3000000000000 (3 followed by 12 zeros).

    screenshot showing metadata reserved space set to 3 TB
  7. Click Apply Changes.