Administrator Guide

Related concepts
Modifying Volumes on page 52
Create Multiple Volumes Simultaneously and Map Them to a Server
If a server requires additional storage and you do not want to use existing volumes, you can create and map multiple volumes to
the server in a single operation.
Steps
1. If you are connected to a Data Collector, select a Storage Center from the drop-down list in the left navigation pane of
Unisphere Central.
2.
From the
STORAGE menu, click Servers.
The Servers view is displayed.
3. Select the server to which to map new volumes.
4. Click (New), then select New Volume.
The New Volume dialog box opens.
5. In the Volume Count field, type the number of volumes to create.
6. Type a name for the volume in the Name field.
7. Select a unit of storage from the drop-down menu and enter the size for the volume in the Configured Size field.
The storage units are Bytes, KB, MB, GB, or TB.
8. Select a parent folder for the volume from the Volume Folder drop-down menu.
9. To force all data written to the to the lowest tier, select Import to Lowest Tier.
NOTE:
When the Import To Lowest Tier check box is selected, snapshots are no longer automatically created,
snapshot profiles cannot be edited, and the volume does not adhere to storage profiles.
10. To display this volume as available for Live Migrations, select Show In Live Migration Recommendation.
11. (Optional) Configure the remaining volume attributes as needed.
● Server—Select a server to which to map the volume.
● Advanced Mapping—Click Advanced Mapping to configure LUN settings, restrict mapping paths, configure
multipathing, or present the volume as read-only.
● Preallocate Storage—Select the Preallocate Storage checkbox to allocate storage to the volume before the volume
is mapped to the server.
NOTE:
When a volume is preallocated, the Storage Center allocates all of the space on the volume to the server.
The Free Space of the volume is 0 MB and the Used/Active Space of the volume is the equal to the size of volume
on Storage Center. To keep the volume preallocated when it is formatted on the server, the SCSI UNMAP feature
must be disable on the server.
● Snapshot Profiles—Click Change to select snapshot profiles for the volume.
● Pause Snapshot Creation—Select this checkbox to prevent snapshots from being created of the volume.
● Pause Snapshot Expiration—Select this chec box to temporarily stop snapshot expiration for the volume.
●
Allow Snapshots to coalesce into active Snapshot—Select this checkbox to allow space management snapshots to
be combined into the next scheduled or manual snapshot.
● Storage Profile—Select the storage profile to assign to the volume. Selecting the Recommended (All Tiers) storage
profile allows the volume to take full advantage of data progression.
● Storage Type—Select the storage type to assign to the volume.
● Volume QoS Profile—Select the volume QoS profile to assign to the volume.
● Group QoS Profile—Select the group QoS profile to assign to the volume.
● Data Reduction Profile—Select Compression or Deduplication with Compression as the data reduction profile for
the volume. None is selected by default.
12. Click OK.
Related concepts
Modifying Volumes on page 52
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Storage Center Server Administration