Infortrend RAID Controller Manual

Spare drives allow for the unattended rebuilding of a failed drive,
heightening the degree of fault tolerance. If there is no spare drive,
data rebuild has to be performed manually by replacing a failed drive
with a healthy one.
6. Limitations?
A logical drive or logical volume can not be larger than two terabytes.
A total of 16 terabytes drive space can be included in a RAID array.
3.2 Configuring the Array:
3.2.1 Starting a RAID System
The following is a basic flowchart illustrating steps to be taken when
configuring a RAID system. Hardware installation should be
completed before any configurations takes place.
Figure 3 - 2 Array Configuration Process
Drives must be configured and the controller properly initialized
before host computer can access the storage capacity.
1. When power is on, the controller scans all the hard drives that are
connected through the drive channels. If a hard drive was
connected after the controller completes initialization, use the
"Scan SCSI Drive" function to let the controller recognize the
newly added hard drive and configure it as a member of a logical
drive.
2. Optimize controller's parameters for your applications. Please
refer to Table 3-2 for details.
3. Configure a logical drive to contain one or more hard drives
based on the desired RAID level, and partition the logical drive
into one or several partitions. For the redundancy across different
channels, you may also create a logical unit containing drives
distributed over different channels. You may then partition the
logical unit into one or several partitions.
RAID Planning 3-3