After you create a LUN, you cannot change the provision setting (thin or thick), but you can expand the size of the LUN.
Expansion is instant, regardless of the data size, but you first need to disconnect all users that are connected to the LUN. Disconnect access to the LUN by removing the LUN from the LUN group to which the users have access. For more information on LUN groups, see the What are LUN groups and how do they work with my ReadyNAS OS 6 storage system?
Note: On ReadyNAS 102, 104, and 2120 systems, individual LUNs cannot exceed 8 TB.
To expand the size of a LUN:
1. Select Shares > Shares.
A list of shared folders and LUNs on each volume displays.
2. Select the LUN that you want to expand.
3. From the pop-up menu that displays, select Settings.
The LUN settings display in a pop-up screen.
4. Select the Expand link.
The size expansion options display:
5. Enter the following settings:
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New Size. Specify the new size of the LUN. The maximum size that you can allocate to a thick LUN is stated above the New Size field.
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Unit. Select the unit of measurement from the drop-down list (MB, GB, or TB).
6. Click the Apply button.
The new LUN size takes effect.
7. Click the OK button.
Your changes are saved and the pop-up screen closes.
8. (Optional) Add the LUN to the LUN group to which it belonged before the expansion.
For more information on how to creat a LUN group, see the How do I create a LUN group on my ReadyNAS OS 6 storage system?
User access to the LUN is restored.