QTS LUN Types
QTS supports the following types of LUNs.
Block-based LUNs support more features and have faster read/write speeds. QNAP recommends using block-based LUNs over file-based LUNs if possible.
|
Feature |
Block-based LUN |
File-based LUN |
VJBOD Cloud LUN |
|---|---|---|---|
|
Parent storage space |
Storage pool |
Thick volume |
Cloud space |
|
VAAI Full Copy |
Supported |
Supported |
Supported |
|
VAAI Block Zeroing |
Supported |
Supported |
Supported |
|
VAAI Hardware-Assisted Locking |
Supported |
Supported |
Supported |
|
VAAI Thin Provisioning and Space Reclaim |
Supported |
Not supported |
Supported |
|
Thin provisioning |
Supported |
Supported |
Not supported |
|
QTS space reclamation |
Supported (when using VAAI or the host is Windows Server 2012, Windows 8 or later) |
Not supported |
Supported (when using VAAI or the host is Windows Server 2012, Windows 8 or later) |
|
Microsoft ODX |
Supported |
Not supported |
Supported |
|
LUN export |
Supported |
Supported |
Supported |
|
LUN snapshots |
Supported |
Partially supported (You can take a snapshot of the LUN's parent volume.) |
Supported |
|
Read/write speeds |
High |
Medium to low |
High when using caching (stored space) Low when not using caching |