Administrator Guide

Use this graph to compare the amount of used disk space to the amount of available disk space on a Storage Center. In addition, use this
graph to compare the used disk space to the alert threshold for disk space. An alarm occurs if the amount of used disk space reaches the
alert threshold value.
Storage Summary Bar Chart
Use the bar chart to view available disk space, allocated disk space, used disk space, free disk space, and Savings vs RAID 10. In addition,
the amount of congured disk space and oversubscribed disk space is displayed below the bar chart.
The following information is displayed in the bar chart on the Storage Summary plugin:
Field/Option Description
Congured
Space
Total size for all user-visible volumes.
Oversubscribed
Space
Congured Space minus the Available Space.
Available Space Total amount of raw disk space available on the disks of a Storage Center
• Storage Center 7.3 and later - Available Space is the total of Allocated Space plus Free Space.
• Storage Center 7.2 and earlier - Available Space is the total of Used Space plus Free Space.
Free Space Amount of disk space available for use by a Storage Center, displayed in units of data and as a percentage of Available
Space.
Allocated
Space
Amount of disk space allocated on the disks for volumes, displayed in units of data. Beginning in Storage Center 7.3,
Allocated Space is also displayed as a percentage of Available Space.
Used Space Amount of disk space used by a Storage Center, displayed in units of data. Prior to Storage Center 7.3, Used Space is
also displayed as a percentage of Available Space.
Savings vs
RAID Ten (10)
Amount of disk space saved by eective use of RAID 5/6 and/or Data Reduction compared to possible disk space
savings from RAID 10.
Historical Storage Usage
The following information is displayed about past disk space usage on the Historical Storage Usage plugin:
Field/Option
Description
Available Space Total amount of raw disk space available on all of the disks of a
Storage Center.
Used Space Amount of disk space used by a Storage Center.
Alert Threshold Space Low disk space threshold for a Storage Center.
Manipulating the Storage Summary Chart or Graph
You can change the zoom level of the chart or graph, save it as an image, or print it.
Zoom in on an Area of the Chart or Graph
Zoom in if you want to view more details.
1 Click and hold the right or left mouse button.
2 Drag the mouse to the right to select.
3 Release the mouse button to zoom into the selected area of the bar chart.
Viewing Storage Center Information
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