1. Click the Pool tab.
2. Open the Pool List submenu under the Overview menu (expanded by default). A list of pools will appear.
3. Select the pool you want, then click the gear icon and choose Expand Pool or select the Expand Pool button at the top.
4. If the original pool was configured on HDD during its creation, select a Media Type: HDD or External Drive.
- HDD: Displays a front view of physical drives, with configured HDDs marked with a blue stripe. SSDs, marked with a gray stripe and block icon, are unavailable.
- External Drive: Shows a list of external drives, with configured drives grayed out as unavailable.
5. In the Selected Drives view for HDDs or SSDs, click available drives in the front view to add them to your pool. For External Drives, click the checkbox in the external drive list to add them.
Note: The selected physical drives must support the pool's current RAID level, and the same RAID level should be used for pool expansion.
6. Once your selections are complete, click Save.
