4.
[Optional] Assign a server to the volume.
5.
Click
OK
.
The SAN/iQ operating system software creates the volume. The volume is selected in the
navigation window and the Volume tab view displays the Details tab.
NOTE:
The system automatically factors data protection levels into the settings. For example, if
you create a fully provisioned 500 GB volume and the data protection level is Network RAID-10
(2–Way Mirror), the system automatically allocates 1000 GB for the volume.
Advanced volume settings
To set advanced characteristics for a volume, continue on the Advanced tab of the New Volume
window. Descriptions of the advanced characteristics are found in
“Characteristics for new volumes”
(page 156)
.
1.
Click the
Advanced
tab on the New Volume window.
2.
Change the desired characteristics and click
OK
when you are finished.
Viewing the volume map
After you create volumes and finish setting up the SAN, use the Map View tab for viewing the
relationships between volumes, snapshots, servers, and remote copies. For more information on
using the map view tools, see
“Using the display tools” (page 17)
.
Editing a volume
Edit a primary volume to change the description, size, and advanced characteristics such as the
cluster, data protection level, type and provisioning.
NOTE:
Moving the volume to a different cluster requires restriping the data in both clusters.
Restriping can take hours, or even days.
Table 49 Requirements for changing volume characteristics
Requirements for Changing
Item
Must be from 1 to 127 characters.
Description
Server must have already been created in the management
group.
Server
Migrating a volume to a different cluster requires the target
cluster to:
Cluster
•
Reside in the same management group
•
Have sufficient storage systems and unallocated space
for the size and data protection level of the volume
being moved
The volume resides on both clusters until all of the data is
moved to the new cluster. This causes a restripe of the data
on both clusters. For example, you create a new cluster in
the management group to expand the storage capacity in
the management group. You want to migrate an existing
volume to the new cluster as part of the capacity
management.
NOTE:
The volume remains fault-tolerant while being
moved.
The rate of the data migration and the resulting impact on
performance can be controlled by the Local Bandwidth
Priority setting for the management group. See
“Editing a
management group” (page 113)
for information about local
bandwidth priority settings.
158
Using volumes