Taking a snapshot
- Go to Storage & Snapshots > Storage > Storage/Snapshots.
- Select a shared folder or LUN.
-
Click Snapshot and then
select Take a
Snapshot.
The Take a Snapshot window opens.
- Optional: Specify a name.
- Optional:
Choose to keep the snapshot
permanently.
If selected, QuTS hero retains the snapshot indefinitely. If not selected, QuTS hero may delete the snapshot according to the snapshot retention policy set for the shared folder or LUN.
For details, see Configuring a snapshot retention policy.
-
Select the snapshot type.
This setting is only available when taking a snapshot of an NFS shared folder or a block-based LUN.
Type
Description
Crash consistent
The snapshot records the state of the data on the shared folder or LUN.
Application consistent
The snapshot records the state of data and applications on the shared folder or LUN. The iSCSI host flushes data in memory to the shared folder or LUN before QuTS hero takes a snapshot. If VMware vCenter is using the shared folder or LUN, vCenter takes a virtual machine snapshot.
Important:This option is only available for VMware vCenter, or for Volume Shadow Copy Service (VSS) aware applications running on a Windows server. You must install QNAP Snapshot Agent on the iSCSI initiator.
- Optional:
Specify a description.
The description helps you to identify the snapshot.
-
Click OK.
A confirmation message appears.
- Click OK.
QuTS hero takes the snapshot. The snapshot appears in Snapshot Manager.