Setting Description
FUA bit support When enabled, iSCSI initiators are able to tell QTS to flush
important cached data to disk, instead of the whole read-write
cache.
Important
Both the iSCSI initiator and the application using
the LUN must support this feature.
8. Click Next.
9. Optional: Deselect Do not map it to a target for now.
If deselected, the Edit LUN Mapping wizard appears after QTS has finished creating the LUN.
10. Click Finish.
11. Optional: Map the LUN to an iSCSI target or Fibre Channel port group.
For details, see the following topics:
• Mapping a LUN to an iSCSI Target
• Mapping a LUN to a Fibre Channel Port Group
Creating a File-Based LUN
1. Go to one of the following screens.
• iSCSI & Fibre Channel > iSCSI > iSCSI Storage
• iSCSI & Fibre Channel > Fibre Channel > FC Storage
2. Click Create, and then select New File-Based LUN.
The File-Based LUN Creation Wizard opens.
3. Select the thick volume that this LUN will be created on.
4. Select a LUN allocation method.
Allocation Description
Thick instant allocation QTS allocates storage pool space when creating the
LUN. This space is guaranteed to be available later.
Thin provisioning QTS allocates storage pool space only when
needed, such as when data is being written to the
LUN. This ensures efficient use of space but there is
no guarantee that space will be available.
5. Click Next.
6. Configure the following LUN settings.
Setting Description
LUN name • Length: 1 to 32 characters
• Valid characters: 0-9, a-z, A-Z, underscore (_)
QTS 4.5.x User Guide
iSCSI & Fibre Channel 305
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