Administrator Guide

Managing Volumes

A Storage Center volume is a logical unit of storage that servers can access over a network. You can allocate more logical space to a

volume than is physically available on the

Storage Center.

Attributes That Determine Volume Behavior

When a volume is created, attributes are associated with the volume to control its behavior.

Attribute Description

Storage Type Specifies the disk folder, tier redundancy, and data page size of the

storage used by the volume.

Storage Profile Controls the RAID type, storage tiers, and data progression

behavior for pages used by the volume.

Snapshot Profile Describes when to take periodic snapshots (also known as point-in-

time copies) for one or more volumes and the time at which

snapshots are deleted (expired).

QoS Profile Specifies a profile to apply to volumes, to potentially limit I/Os that

the volumes can perform, and also defines their relative priority

during times of congestion.

Related concepts

Managing Snapshot Profiles

Creating Volumes

Create volumes to present servers a logical unit of storage on a Storage Center.

NOTE:

For user interface reference information, click Help.

Create a Single Volume

Use the New Volume dialog box to create a single volume.

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.

From the STORAGE menu, click Volumes.

The Volumes view is displayed.

3. In the Volumes view, click (New), and select New Volume.

The New Volume dialog box opens.

4. In the Volume Count field, type 1 to create a single volume.

5. In the Name field, type a name for the volume.

6. In the Configured Size field, type a size for the volume in kilobytes (KB), megabytes (MB), gigabytes (GB), or terabytes (TB).

7. In the Volume Folder pane, select the parent folder for the volume.

8. (Optional) Configure the remaining volume attributes as needed.

• Select the The Import To Lowest Tier checkbox to forces all data written to the volume to the lowest storage tier configured

for the volume. Enabling this option decreases performance for the volume.

• To map the volume to a server, select a server from the Server drop-down list.

• To schedule snapshot creation and expiration for the volume, apply one or more Snapshot Profiles by clicking Change across from

Snapshot Profiles.

• To enable or disable snapshot functions, select or clear the following checkboxes:

• Pause Snapshot Creation

• Pause Snapshot Expiration

Storage Center Administration