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How to use QNAP Flexible Volume Management?

You can use QNAP flexible volume management to better manage your storage capacity. The storage pool aggregates hard drives into a bigger storage space, and with the ability to support multiple RAID groups, the storage pool can offer more redundant protection and reduce risk of data crash. With thin provisioning, storage space can be used more efficiently, and users can dynamically add or expand the capacity on demand to deploy storage for intended applications.

QNAP Flexible Volume Management Architecture

Create a new storage pool

1. Go to "Storage Manager" > "Storage Space" and click "New Storage Pool" to open the storage creation window. Select the enclosure and hard drives to add to the new storage pool, select a proper RAID type, and click "Next". Please note that all of the data on the selected drives will be erased.

2. Set the reserved space for snapshot protection (the default value is 20%) and click "Create". Please note that if "Snapshot Space Reservation" is disabled, the system will automatically use unallocated space from the storage pool for snapshots. You will then need to monitor the space used to ensure that there is sufficient space for new snapshots.

3. The new storage pool will be created.

Expand storage pool capacity online

To expand the storage pool capacity, please refer to the two methods.

1. Create a new RAID group

1.1. Go to "Storage Manager" > "Storage Space", click "Manage", and then click "Expand Pool" to open the "Storage Pool Expansion Wizard".

1.2. Select "Create and add a new RAID group" and click "Next".

1.3. Select the hard drives to be added to the RAID group and proper RAID type. Click "Next". Please note that all of the data on the selected drives will be erased.

1.4. Confirm your settings in the summary page and click "Expand" to finish.

1.5 The storage pool capacity will be expanded.

2. Add hard drives to an existing RAID group

Please note that RAID 0, RAID 10, Single and JBOD are not supported for storage pool expansion.

2.1. Go to "Storage Manager" > "Storage Space", click "Manage", and then click "Expand Pool" to open the "Storage Pool Expansion Wizard".

2.2. Select "Add new disk(s) to an existing RAID group", choose an existing RAID group from the drop down list, and click "Next".

2.3. Select a hard drive to be added to the RAID group and click "Next".

2.4. Confirm your settings in the summary page and click "Expand" to finish.

2.5. The s pool capacity will be expanded.

Create a new volume

1. Go to "Storage Manager" > "Storage Space" > "Create" and click "New Volume" to open the Volume Creation Wizard.

2. There are 3 options available:
(1). Static Single Volume (best performance)
(2). Thick Multiple Volume (good performance and flexibility)
(3). Thin Multiple Volume (great flexibility and storage efficiency)
Using “Thick Multiple Volume” as an example, select the name of the storage pool and click "Next".

3. Specify the volume capacity and the rest of the options and click "Next". To modify “Bytes per inode”, enable “File system option”. Refer to the table below for the relationship between bytes per inode, maximum size of volume, and maximum number of files/folders.

Bytes per Inode Max. Size of Volume Max. Number of Files/Folders
4096 15.99 TB Volume Size/Bytes per Inode
8192 31.99 TB
16384 (Default) 63.99 TB
32768 127.99 TB
65536 250 TB

4. Confirm your settings in the summary page and click "Finish".

5. A new volume will be created.

Expand volume capacity online

1. Go to “Storage Manager” > “Storage Space”, select a volume, and click "Manage". 

2. Click "Expand Volume" to open the "Volume Resizing Wizard".

3. Specify the new capacity and click "Apply".

4. The volume's capacity will be expanded.

Create a new block-‐based iSCSI LUN

1. Go to “Storage Manager” > “Storage Space”, and click "Create". Click “New iSCSI LUN” to open the “iSCSI Quick Configuration Wizard”.

2. Select "iSCSI LUN only" and click "Next".

3. Select "Allocate space from a storage pool as an iSCSI LUN" and the storage pool. Click "Next".

4. Enter a LUN name, select "Thin Provisioning" and specify the capacity. Click "Next".

5. Select an iSCSI target to map and click "Next".

6. Confirm your settings in the summary page and click "Next" to finish.

7. A block‐based iSCSI LUN will be created.

Expand iSCSI LUN capacity online

1. Go to “Storage Manager” > “iSCSI Storage”, select an iSCSI LUN and click "Action" > “Modify” to open the iSCSI LUN configuration page.

2. Enter the new capacity and click "Apply" to finish.

3. The volume's capacity will be expanded.

 
Datum vydání: 2013-10-28
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