User's Manual

100 Storage Center 5.5 System Manager User Guide
Volumes
Viewing Volume Information
In the system tree, click Storage. The Storage window appears.
Figure 77. Viewing Volume Info
Volume information displays status of volumes. To view information for all volumes in a
folder, in the system tree, select the top Volumes folder. System Manager lists the folders
and volumes within that folder.
Information includes:
• Name: Shows the name of the volume.
• Type: Displays the type – volume or a volume folder
• Status: Shows volume status: up or down
• Status Information: If an element is down, this field displays the reason it is down
• Volume Type: Dynamic, Replay Enabled, or Replication.
• Dynamic Volume: A volume for which no Replays have been taken. Exists on the
system as a read/write volume. Data Progression manages the volume allocations
in configure Volume Active space only.
• Replay Enabled Volume: A volume that has at least one Replay. A Replay-enabled
volume consists of two different layers of volume space: Active (writable) and Replay
(historical, or read-only). Once a Replay is taken on a volume, the active data that
exists on that volume is marked as read-only and is moved to the Tier and Class that
is configured for Replays. New data written to the volume after the Replay is written
to active portion of the volume; however the Replay area may still be accessible for
reads. As more changes to the volume occur (as writes in the active space) and as
more Replays are taken, some of the Replay data may become inaccessible. This is
known as Replay overhead. This data can be made available by creating a view
volume to allow for data recovery or backups.
• Replication Volume: A target volume that is being replicated from another system.
• Logical Size: Shows the logical size of the volume.
• Replay Profile: Shows the Replay profile attached to the volume.