Infortrend RAID Controller Manual

You may first examine whether there is any drive installed but not
shown here. If there is a drive installed but not listed, the drive may be
defective or not installed correctly, please contact your system vendor.
IMPORTANT!
• Drives of the same brand/model/capacity might not have the same block number.
• The basic read/write unit of a hard drive is a block. If the drive members in one
logical drive have different block numbers (capacity), the minimum block number
among all the member drives will be chosen as the maximum block number for the
RAID configuration. Therefore, use drives of the same capacity.
• You may assign a Local/Global Spare Drive to a logical drive whose member drive's
block number is equal or smaller to the Local/Global Spare Drive's block number but
you may not do the reverse.
Front Panel Operation 6-5