QNAP

QTS 5.0.x

Configuring a Snapshot Schedule

Tip:

You can configure a separate snapshot schedule for each volume and LUN.

  1. Go to Storage & Snapshots > Storage > Storage/Snapshots.
  2. Select a thick volume, thin volume, or block-based LUN.
  3. Click Snapshot, and then select Snapshot Manager.

    The Snapshot Manager window opens.

  4. Click Schedule Snapshot.

    The Snapshot Settings window opens.

  5. Select Enable schedule.
  6. Specify how often QTS will take a snapshot.
  7. Select the LUN snapshot type.

    This setting is only available when taking a snapshot of a block-based LUN.

    Type

    Description

    Crash consistent

    The snapshot records the state of the data on the LUN.

    Application consistent

    The snapshot records the state of data and applications on the LUN. The iSCSI host flushes data in memory to the LUN before QTS takes a snapshot. If VMware vCenter is using the LUN, vCenter takes a virtual machine snapshot.

    Important:

    This option is only available for VMware vCenter, or for Volume Shadow Copy Service (VSS) aware applications running on a Windows server. You must install QNAP Snapshot Agent on the iSCSI initiator.

  8. Optional: Enable smart snapshots.

    When enabled, QTS only takes a snapshot if data on the volume or LUN was modified since the last snapshot was taken.

  9. Optional: Specify a description.

    The description helps you to identify the snapshot.

  10. Click OK.

    A confirmation message appears.

  11. Click OK.

QTS starts taking snapshots according to the schedule.