NAS State |
Action |
---|---|
No volumes or storage pools |
Click New Volume. |
One or more volumes or storage pools |
Click Create > New Volume. |
The Volume Creation Wizard window opens.
You cannot select disks from multiple expansion units.
If the expansion unit is disconnected from the NAS, the storage pool becomes inaccessible until it is reconnected.
For data safety, you cannot select disks that have the status Warning.
The status In Use means that a disk is currently formatted as an external disk, and may contain current user data.
If you select a disk with the status In Use, QTS will temporarily stop all disk storage services on the NAS in order to unmount the disk, and then delete all data and partitions on the disk.
All data on the selected disks will be deleted.
QTS displays all available RAID types and automatically selects the most optimized RAID type.
Number of disks |
Supported RAID Types |
Default RAID Type |
---|---|---|
One |
Single |
Single |
Two |
JBOD, RAID 0, RAID 1 |
RAID 1 |
Three |
JBOD, RAID 0, RAID 5 |
RAID 5 |
Four |
JBOD, RAID 0, RAID 5, RAID 6, RAID 10 Important:
RAID 10 requires an even number of disks. |
RAID 5 |
Five |
JBOD, RAID 0, RAID 5, RAID 6 |
RAID 6 |
Six or more |
JBOD, RAID 0, RAID 5, RAID 6, RAID 10, RAID 50 |
RAID 6 |
Eight or more |
JBOD, RAID 0, RAID 5, RAID 6, RAID 10, RAID 50, RAID 60 |
RAID 6 |
Use the default RAID type if you are unsure of which option to choose.
For details, see RAID Types.
The designated hot spare automatically replaces any disk in the RAID group that fails.
For details, see RAID Disk Failure Protection.
The selected disks are divided evenly into the specified number of RAID 5 or 6 groups.
A higher number of subgroups results in faster RAID rebuilding, increased disk failure tolerance, and better performance if all the disks are SSDs.
A lower number of subgroups results in more storage capacity, and better performance if all the disks are HDDs.
If a RAID group is divided unevenly, the excess space becomes unavailable. For example, 10 disks divided into 3 subgroups of 3 disks, 3 disks, and 4 disks will provide only 9 disks of storage capacity.
The alias must consist of 1 to 64 characters from any of the following groups:
Letters: A to Z, a to z
Numbers: 0 to 9
Special characters: Hyphen (-), underscore (_)
Over-provisioning reserves a percentage of SSD storage space on each disk in the RAID group to improve write performance and extend the disk's lifespan. You can decrease the amount of space reserved for over-provisioning after QTS has created the RAID group.
To determine the optimal amount of over-provisioning for your SSDs, download and run SSD Profiling Tool from App Center.
The number of bytes per inode determines the maximum volume size and the number of files and folders that the volume can store. Increasing the number of bytes per inode results in a larger maximum volume size, but a lower maximum number of files and folders.
Setting |
Description |
User Actions |
---|---|---|
Alert threshold |
QTS issues a warning notification when the percentage of used volume space is equal to or above the specified threshold. |
Specify a value. |
Encryption |
QTS encrypts all data on the volume with 256-bit AES encryption. |
Warning:
|
Accelerate performance with SSD cache |
QTS adds data from this volume to the SSD cache to improve read or write performance. |
No actions |
Create a shared folder on the volume |
QTS automatically creates the shared folder when the volume is ready. Only the user account that creates the shared folder will have read/write access to the folder. Note:
This setting is only available when logged in as "admin". |
A snapshot shared folder enables faster snapshot creation and restoration. |
A confirmation message appears.
Clicking OK deletes all data on the selected disks.
QTS creates and initializes the volume, and then creates the optional shared folder.