Arrays & Logical Drives; Information Center - IBM System Storage DS3500 Introduction And Implementation Manual

Draft Document for Review March 28, 2011 12:24 pm
7.5 Arrays & Logical Drives
At the top of the right column of the Summary tab is the Arrays & Logical Drives box. This
box shows how many Arrays and Logical Drives are configured on your system (Figure 7-13).
An Array is a set of physical disk drives that the controller groups together to provide one or
more logical drives to the host or host group.
While creating an Array, you can also choose the array's RAID level; for more details about
the RAID levels, refer to 3.3.2, "Understanding RAID types" on page 50. Depending on your
configuration, this affects the system's fault tolerance and performance. The bottom part of
the box shows which RAID levels are configured on your storage subsystems, how many
Arrays of this level exist, and how many Logical Drives are in each level.
Figure 7-13 Arrays & Logical Drives
Note: Practically, RAID1 level Array on more than two disks is RAID10 level. But RAID1 is
displayed in this box also for Arrays with more than two disk drives, it means for RAID10.

7.6 Information Center

At the right bottom edge of the Summary tab is the Information Center box (Figure 7-14). It
includes several links to help you understand and set up your storage subsystem, as well as
answering any questions you can have.
Figure 7-14 Information Center
Each of the five links opens the same Help application window but with different content. Click
one of the links to navigate in the online help directly to the related content:
Online Help
Storage Concepts Tutorial
Planning your Configuration
Configuring Your Storage Subsystem
Essential Terms to Know
7914Admin_Summary.fm
Chapter 7. Administration - Summary Tab
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