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Managing settings for volumes

You can specify advanced settings that apply when you provision new volumes on the storage system. These settings include features such as enabling thin provisioning and deleting a volume when the last LUN contained in it is deleted.


  1. From the Virtual Storage Console Home page, click Storage Systems.
  2. Right-click on a the storage system and select Modify from the Actions menu.
  3. In the Modify Storage System pop-up box, click the Provisioning Options tab.
    If storage system properties have been locked to prevent changes, click Enable Editing. In the resulting dialog box, enter the username and password for that storage system. Virtual Storage Console for VMware vSphere will not let you change the settings until you enter this information.
  4. After you have enabled editing, check the boxes next to the advanced options and enter information to modify the FlexVol efficiency settings to match those on the LUN being deployed.
    Note: If a thin provisioned LUN is deployed into a FlexVol with volume autogrow or snapshot autodelete disabled, it is possible to over-commit the LUN to the volume. This creates an out-of-space condition.
    Option Explanation
    Create a new volume for a new LUN

    Selecting this option creates a FlexVol with the same name as the LUN. If a volume with that name already exists, VSC appends a number to the volume name; for example:


    Reserve space for volumes that contain thin provisioned LUNs Checking this results in having a thin LUN in a thick volume when a thin LUN is chosen.
    Thin provision volume clones Sets the space reservation policy to thin provisioning for clones created from this volume.
    Delete a volume if the last LUN in it has been deleted Destroys the volume when the last LUN on it is deleted.
    Buffer space between volume and LUN (GB) Specifies the amount of additional capacity in a volume that contains a LUN-based datastore.
  5. Click OK when you finish.