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QTS 5.0.x

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Creating a SED Secure Static Volume

To create a regular static volume, see Creating a Static Volume.

  1. Go to Storage & Snapshots > Storage > Storage/Snapshots.
  2. Perform one of the following actions.

    NAS State


    No volumes or storage pools

    Click New Volume.

    One or more volumes or storage pools

    Click Create > New Volume.

    The Volume Creation Wizard window opens.

  3. Select Static volume.
  4. Click Next.
  5. Optional: Select an expansion unit from the Enclosure Unit list.
    • You cannot select disks from multiple expansion units.

    • If the expansion unit is disconnected from the NAS, the storage pool becomes inaccessible until it is reconnected.

  6. Select Create SED secure static volume.

    The list of disks only displays SED disks.

  7. Select one or more disks.
  8. Select a RAID type.

    QTS displays all available RAID types and automatically selects the most optimized RAID type.

    Number of disks

    Supported RAID Types

    Default RAID Type





    JBOD, RAID 0, RAID 1

    RAID 1


    JBOD, RAID 0, RAID 5

    RAID 5


    JBOD, RAID 0, RAID 5, RAID 6, RAID 10


    RAID 10 requires an even number of disks.

    RAID 5


    JBOD, RAID 0, RAID 5, RAID 6

    RAID 6

    Six or more

    JBOD, RAID 0, RAID 5, RAID 6, RAID 10, RAID 50

    RAID 6

    Eight or more

    JBOD, RAID 0, RAID 5, RAID 6, RAID 10, RAID 50, RAID 60

    RAID 6


    Use the default RAID type if you are unsure of which option to choose.

    For details, see RAID Types.

  9. Optional: Select the disk that will be used as a hot spare for this RAID group.

    The designated hot spare automatically replaces any disk in the RAID group that fails.

    For details, see RAID Disk Failure Protection.

  10. Optional: Select the number of RAID 50 or RAID 60 subgroups.

    The selected disks are divided evenly into the specified number of RAID 5 or 6 groups.

    • A higher number of subgroups results in faster RAID rebuilding, increased disk failure tolerance, and better performance if all the disks are SSDs.

    • A lower number of subgroups results in more storage capacity, and better performance if all the disks are HDDs.


    If a RAID group is divided unevenly, the excess space becomes unavailable. For example, 10 disks divided into 3 subgroups of 3 disks, 3 disks, and 4 disks will provide only 9 disks of storage capacity.

  11. Click Next.
  12. Optional: Specify an alias for the volume.

    The alias must consist of 1 to 64 characters from any of the following groups:

    • Letters: A to Z, a to z

    • Special characters: Hyphen (-), underscore (_)

  13. Configure the SED settings.
    1. Specify the encryption password.

      The password must contain 8 to 32 characters, with any combination of letters, numbers, and special characters. Spaces are not allowed.


      Remember this password. If you forget the password, the pool will become inaccessible and all data will be unrecoverable.

    2. Verify the encryption password.
    3. Optional: Save the encryption key to the local NAS.

      Saving the encryption key enables QTS to automatically unlock and mount the SED volume when the NAS starts up. If the encryption key is not saved, you must specify the encryption password every time the NAS restarts.


      Enabling this setting can result in unauthorized data access if unauthorized personnel are able to physically access the NAS.

  14. Optional: Configure SSD over-provisioning.

    Over-provisioning reserves a percentage of SSD storage space on each disk in the RAID group to improve write performance and extend the disk's lifespan. You can decrease the amount of space reserved for over-provisioning after QTS has created the RAID group.


    To determine the optimal amount of over-provisioning for your SSDs, download and run SSD Profiling Tool from App Center.

  15. Optional: Configure advanced settings.



    User Actions

    Alert threshold

    QTS issues a warning notification when the percentage of used volume space is equal to or above the specified threshold.

    Specify a value.

    Accelerate performance with SSD cache

    QTS adds data from this volume to the SSD cache to improve read or write performance.


    Create a shared folder on the volume

    QTS automatically creates the shared folder when the volume is ready. Only the user account that creates the shared folder will have read/write access to the folder.

    • Specify a folder name.

    • Select Create this folder as a snapshot shared folder.

    A snapshot shared folder enables faster snapshot creation and restoration.

    Bytes per inode

    The number of bytes per inode determines the maximum volume size and the number of files and folders that the volume can store. Increasing the number of bytes per inode results in a larger maximum volume size, but a lower maximum number of files and folders.

    Select a value.

  16. Click Next.
  17. Click Finish.

    A confirmation message appears.


    Clicking OK deletes all data on the selected disks.

QTS creates and initializes the volume, and then creates the optional shared folder.