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xStack Storage Management Center Software User’s Guide 67

Figure 4-5. Example of SMART Attributes Tab

4.3.3 Viewing Extents on a Drive (Extents Tab)

An extent is a contiguous set of logical blocks (LBs) on a drive. An extent is also called a

physical extent.

When a drive is selected in the Main Display, you can use the Extents tab to view

information about the extents on the selected drive. Initially, the Extents tab shows

basic extent information, as shown in Figure 4-6. This read-only screen provides volume

name links below the first Description column that, when clicked, display the selected

volume in the Extents tab of the Volume View (see section 3.4.2).

Figure 4-6. Example of Extents Tab (Basic Information)

1 2 ... 72 73 74 75 76 77 78 79 80 81 82 ... 136 137

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