Chapter 1
HP Rack Storage/12 Overview
6
Status LEDs
Each hard drive has two status indicators located in the lower left corner of the
front cover. The status indicators are drive activity and drive power. The
indicators are light pipes transmitting the output of two LEDs mounted on the
back-plane of the drive cage.
Filler Panels
Filler panels are installed in unused hard drive slots in the drive cage. The 1-inch
filler panels must be inserted to ensure that drive cage has the proper air flow and
prevent excessive EMI (electromagnetic radiation). Remove the filler panel when
you install a new hard drive.
CAUTION
Do not remove the filler panels except to install a new hard
drive. Open slots in the drive cage can affect airflow and
cause thermal damage and excessive EMI.
Drive Spacers
Drive spaces are required when half-height and low-profile hard drives are
installed in the drive cage. The 0.5-inch drive spacer fills the space between
adjacent drives or between a drive and a filler panel. Drive spacers can be
mounted on low-profile drives, half-height drives and filler panels. Figure 1-1
shows the use of the drive spacer between half-height and low-profile hard
drives.
CAUTION
Do not remove the drive spacers except to install a new hard
drive. Open slots in the drive cage can affect airflow and
cause thermal damage and excessive EMI.