4. Enter the following information:
Volume Name
: If this is the first volume configured for this array, the name defaults to the name of
the array. If there are already volumes on the array, then the
Volume Name
field is blank. Enter a
name for the volume. Volume names can be up to 63 characters long.
Volume Size (
X
to one decimal place)
: The value of this field defaults to all of the remaining space
left on the array. The units defaults to true gigabytes (GB), but this can be changed using the unit type
selection buttons and
Change Units
button (located below the
Create Volume
and
Reset
buttons).
Enter the desired size of the new volume.
Limit volume size to less than 2TB
: This option is unchecked by default. If your hosts do not
support volumes of more than 2 terabytes (TB) in size, check this option.
Note
If you select this option, the value entered in
Volume Size (
X
to one decimal place)
must not
exceed 2TB, or else the volume will not be built and an error message will appear.
Enable snapshots
: On arrays that have advanced feature support enabled, (see
on page 115), this option is checked by default. To enable snapshots (and replication) for
this volume, leave this box checked. To disable snapshots for this volume, uncheck the box.
Notes:
If you disable snapshots for this volume, you can enable them later on the
Configure Volume
Snapshots
page (see
If a valid snapshot and replication license is not installed on the storage system, the message
A
snapshot license must be installed before snapshots can be created
is displayed beneath the
Enable snapshots
check box. See
Application and Feature Licenses
For detailed information regarding the snapshots and replication features, see the
Nexsan High-
Density Storage Snapshots and Replication User Guide
.
Reserve for snapshots (
X
to one decimal place)
: When
Enable snapshots
is checked, the value
of this field defaults to approximately 25% of the value of
Volume Size (
X
to one decimal place)
.
Enter the desires size of the snapshot reserve.
Note
It is recommended that the snapshot reservation be set to approximately 25% of the volume
size. See the
Nexsan High-Density Storage Snapshots and Replication User Guide
for more
information.
Note
If at any time you wish to return the
Create a Logical Volume
page to its initial state, click
Reset
.
Chapter 2: Common Tasks — Configure volumes on a RAID array
Nexsan High-Density Storage
User Guide
46