Specifications, Continued
SCSI Drives The 4U chassis supports three hot plug 3.5”
∙These drives are accessible from the front.
∙Each drive bay can take a 1” SCSI LVD drive.
∙The three drives are arranged on one back plane. The back plane supports three drives. The default IDs of these drives are 1, 2, and 3.
∙Access to the back plane is through one Wide SCSI cable. This cable can be connected, for example, to one channel on a RAID controller.
Cooling | There are two fans mounted in the middle of the chassis. These fans are hot plug and are |
| monitored by the Megaplex II system BIOS Health screen and the management software shipped |
| with Megaplex II. |
| ∙ There are three blower fans in the power supply assemblies. |
| ∙ For cooling the CPU area, the CPU top plate must be installed and the Top Chassis cover |
| must be closed. |
|
|
Chassis Intrusion There is a chassis intrusion switch that detects when the top system cover is open. This switch is monitored through the management software provided with Megaplex II.
Chassis Alarm Indication There are some LEDs and alarms that are displayed on the chassis:
Each of the three power supplies has an alarm. When one of the power supply fails, the RED LED for that power supply comes on and the buzzer goes off.
Each of the two middle fans has an alarm. When one of the fans fail, the RED LED for that fan comes on and the buzzer goes off.
Note:There is an Alarm Mute switch that will turn off the buzzer.
Cont’d
4Megaplex II 4U Chassis Guide