Administrator Guide

Figure 39. Storage Type Pressure Report Tab
The data progression pressure report displays the following information for each tier.
Pressure Report
Column
Description
RAID Level Raid level in the storage tier.
Disk Track Type of tracking – either Fast or Standard.
Chart Bar chart displaying allocated space and space used.
Disk Allocated Space reserved for volumes.
Disk Used The amount of space in use by volumes.
Pressure Up In the next data progression cycle, the amount of data that to be moved up. Indicated by a green bar and up
arrow in the bar chart.
Pressure Down In the next data progression cycle, the amount of data that be moved down. Indicated by an orange bar and a
down arrow in the bar chart.
Volume Allocated Amount of space reserved for use by volumes after RAID is applied.
Volume Used Amount of space used by volumes after RAID is applied.
Saved vs RAID 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.
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