Users Guide

Table Of Contents
Connectors
A controller contains one or more connectors (channels or ports) to which you can attach disks. You can externally access a
connector by attaching an enclosure (for external disks) to the system or internally access by attaching to the backplane (for
internal disks) of a system. You can view the connectors on the controller by expanding the controller object in the tree view.
Topics:
Channel Redundancy
Creating A Channel-Redundant Virtual Disk
Connector Health
Connector Properties And Tasks
Logical Connector Properties And Tasks
Channel Redundancy
You can create a virtual disk that uses physical disks that are attached to different controller channels. The physical disks may
reside in an external enclosure or the backplane (internal enclosure). If the virtual disks maintain redundant data on different
channels, then these virtual disks are channel redundant. Channel redundancy is when one of the channels fail, the data is not
lost as redundant data resides on another channel.
Channel redundancy is implemented by selecting physical disks on different channels when using the Create Virtual Disk
Advanced Wizard.
NOTE:
Channel redundancy only applies to controllers that have more than one channel and that attach to an external disk
enclosure.
Creating A Channel-Redundant Virtual Disk
NOTE:
Channel redundancy only applies to controllers that have more than one channel and that attach to an external disk
enclosure.
The following instructions provide information on creating a virtual disk that uses channel redundancy.
1. Launch the Create Virtual Disk Advanced Wizard:
a. In the Server Administrator window, under the system tree, click Storage dashboard.
b. Locate the controller on which you are creating a channel-redundant virtual disk and expand the controller object until
the Virtual Disks object is displayed.
c. Select Virtual Disks and click Go To The Create Virtual Disk Wizard.
d. Click Virtual Disk Advanced Wizard.
2. Follow the steps in Create Virtual Disk Advanced Wizard.
3. 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 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.
11
Connectors 105