Note: Before expanding a volume, you should have free space. If not, you may want to delete other volumes. Please refer to this post:
How to delete a Volume on QNAP
- Login QNAP web utility
- Click on Storage & Snapshots
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3. Click on Storage and then Storage/Snapshots.
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4. Select a volume you want to extend and then click Manage.
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5. Click Action and then Expand Pool.
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6. The Volume Resizing Wizard opens and keep the default selection. Click Next.
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7. Specify a new capacity for the volume. Select Disks, in our example all. Select RAID type, for example RAID 10.
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8. Review the expand summary
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9. In the popup warning, click on Expand to process.
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10. It is processing the expand.
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11. Completed.
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Storage Pool 1 Management shows
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It is syncing.
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Please view this step by step video: