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Chapter 1 DX-Series System Description
Supported RAID Configurations
Quantum DX-Series User’s Guide
13
Figure 7 AC Power Sequencer
AC power
sequencer
Supported RAID Configurations
1
RAID is short for Redundant Array of Independent (or Inexpensive)
Disks, which is a category of hard
disk drives
that employ two or more
drives in combination for
fault tolerance
and performance. There are a
number of RAID levels in use today such as 0, 1, 3, 5, and 10.
The DX-Series system supports RAID 5 in both 7+1 and 6+1 with hot
spare configurations.
RAID 5 Configuration
1
The RAID 5 configuration is the most common RAID level in use today.
RAID 5 minimizes the write bottlenecks of other RAID levels by
distributing parity stripes over a series of hard drives. In doing so it
provides relief to the concentration of write activity on a single drive,