User's Manual

162 Connectors
NOTE: Channel redundancy only applies to controllers that have more than one
channel and that attach to an external disk enclosure.
1 Launch the Create Virtual Disk Advanced Wizard by doing the
following:
a Locate the controller on which you are creating a channel-redundant
virtual disk Expand the controller object until the
Virtual Disks
object is displayed.
b Select the Virtual Disks object and click Go To Create Virtual Disk
Wizard
.
c Click Virtual Disk Advanced Wizard .
2 Complete Create Virtual Disk Advanced Wizard. This portion of the
Create Virtual Disk Advanced Wizard asks you to select a RAID level.
When creating a channel-redundant virtual disk, it is recommended that
you select the following RAID levels.
3 Complete Click Exit Wizard to cancel the virtual disk creation.. In this
step, you select the channels and the disks to be used by the virtual disk.
The selections you make determine whether or not the virtual disk is
channel-redundant.
There are specific RAID level and configuration requirements for
implementing channel redundancy. You must select the same number of
physical disks on each channel that you use. For information on the
number of physical disks that can be used for different RAID levels, see
Number of Physical Disks per Virtual Disk. For information on controller-
specific implementations of the RAID levels, see Controller-supported
RAID Levels.
Physical disk Selection for Channel-redundant Virtual Disks on PERC Controllers
The following sections describe creating a channel-redundant virtual disk
using RAID 10 or RAID 50 on PERC controllers.
RAID 10
1 Select one physical disk on each of two channels. (In other words, each of
the two channels select a single disk.)
2 Select an additional disk on each of the two channels. You have now
selected the minimum number of disks for a RAID 10.
3 Repeat step 2 until you have the desired number of disks.