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Cisco UCS Invicta C3124SA Appliance Administration and Configuration Guide
OL-31370-01
Chapter 4 LUN Configuration
•
Enter a name in the
LUN Name
field.
•
Enter the size of the LUN presented to the operating system (expressed in gigabytes).
•
Volume Group displays the free space on your array.
Step 4
Click
Create LUN
or click
Cancel
to close the dialog box without creating a new LUN.
Increase LUN Size
Note
If a LUN is part of an asynchronous replication pairing, its size cannot be increased (see
Chapter 5,
“Asynchronous Replication”
).
Step 1
Choose
LUN Configuration > LUNs
.
The
LUN
window appears.
Step 2
Highlight a LUN from the LUNs list by mousing over it and right click.
The right-click menu appears.
Step 3
Choose the
Increase Size (GB)
menu option.
Increase Size
dialog box appears.
Step 4
Enter the new size into the
Increase (GB)
field.
Note
LUN size can only be increased, not decreased.
Step 5
Click
Update LUN
or click
Cancel
and return to the LUNs list.
Create Snapshots
The Snapshot feature provides the ability to create virtual images of a LUN at a particular instant and
does so without causing a service interruption.
Snapshot characteristics:
•
LUN Snapshots are differentiated in the LUN list when the LUN’s “Origin” and “Snap%” columns
are populated.
•
Snapshots can be created either manually or on a schedule. A maximum of 10 snapshots is allowed
per LUN.
•
When a Snapshot is created, its initial size is automatically calculated based upon the size of the
Origin volume.
•
Snapshots are automatically resized based upon the number of changes to the Origin volume and the
amount of free space left on the Origin volume.
•
Snapshots can be mounted for read/write purposes.
•
One or more Snapshots can be deleted manually.
