Users Guide


RAID 0 Characteristics:
l Groups n disks as one large virtual disk with a capacity of (smallest disk size)*n disks.
l Data is stored to the disks alternately.
l No redundancy data is kept. When a disk fails, the large virtual disk fails with no means of rebuilding the data.
l Better read and write performance.

Related Information:

See the following:
l "Organizing Data Storage for Availability and Performance"
l "Comparing RAID Level and Concatenation Performance"
l "Controller-supported RAID Levels"
l "Number of Physical Disks per Virtual Disk"
l "Maximum Number of Virtual Disks per Controller"

RAID Level 1 (Mirroring)

RAID 1 is the simplest form of maintaining redundant data. In RAID 1, data is mirrored or duplicated on one or more physical disks. If a physical disk on one
side of the mirror fails, then the data can be rebuilt using the physical disk on the other side of the mirror.
Figure 3-3. Mirroring Disks


RAID 1 Characteristics:
l Groups n + n disks as one virtual disk with the capacity of n disks. The controllers currently supported by Storage Management allow the selection of
two disks when creating a RAID 1. Because these disks are mirrored, the total storage capacity is equal to one disk.