1-4
Introduction
Device Carriers
Front loaded components such as disk drives and power supplies are housed in
easily removable device carriers. The device carrier is the basic building block of
the series. The device carriers are of high quality anodized metal construction.
This allows for rapid heat dissipation and conforms to the stringent requirements
of CE and FCC standards. A release mechanism ensures the safe and easy inser-
tion and removal of the device carrier. Disk drive and power supply carriers can
be differentiated by the color of their ejection button. The ejection button on the
disk drive is gray and on the power supply is black.
Cooling
The RAIDStation7 Ultra160 SCSI Storage Array models feature three Advanced
Cooling Modules (ACMs). The modules are mounted at the rear of the unit. In the
event of an ACM failure, the remaining two ACMs are capable of cooling the
entire Storage Array until the failed ACM is replaced. This gives N+1 redun-
dancy.
Environmental Monitoring
The Versatile Environmental Monitor (VEM) monitors the ACMs, hard disk
drives, power supplies, and Storage Array shelf temperature.
The device carriers has two LEDs on the front which give information about the
status of the hard disk drives or power supplies.
