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Smart Array Controller Technology: Drive Array Expansion and Extension
logical drive
creation
Once the drive capacity has been expanded, the added capacity can be
used to create a new logical drive (figure 2) or to extend the size of an existing
logical drive (as described in the section titled volume extension).
Some people might want to add a new logical drive, for example, if every
department in a company had its own logical storage volumes. If a new
department were created, the administrator might need to create an entirely
new logical drive for that department, or need to improve performance of an
existing volume by increasing the number of spindles (drives).
figure 2. After capacity expansion, an administrator can use this free space by creating
an entirely new logical drive
However, most customers will choose to extend the size of their volume after
capacity expansion. The volume extension allows customers to increase the
logical volume size if they are running out of storage space on the existing
volume.
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