User's Manual

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RAID 10 Characteristics:
l Groups n disks as one large virtual disk with a capacity of (n/2) disks, where n is an even integer.
l Mirror images of the data are striped across sets of physical disks. This level provides redundancy through mirroring.
l When a disk fails, the virtual disk still works. The data is read from the surviving mirrored disk.
l Improved read performance and write performance.
l Redundancy for protection of data.
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Related Information:
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
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RAID Level 1-Concatenated (Concatenated mirror)
RAID 1-concatenated is a RAID 1 disk group that spans across more than a single pair of physical disks. This combines the advantages of concatenation with
the redundancy of RAID 1. No striping is involved in this RAID type.
Figure 3-9. RAID 1-Concatenated
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NOTE: On the PERC 4/SC, 4/DC, 4e/DC, 4/Di, 4e/Si, and 4e/Di controllers, there are special considerations when implementing RAID 10 on a disk group
that has disks of different sizes. For more information, see Considerations for RAID 10 and 50 on PERC 4/SC, 4/DC, 4e/DC, 4/Di, 4e/Si, and 4e/Di.
NOTE: You cannot create a RAID 1-concatenated virtual disk or reconfigure to RAID 1-concatenated with Storage Management. You can only monitor a
RAID 1-concatenated virtual disk with Storage Management.