Specifications, Continued
SCSI Drives The 9U chassis supports eight hot plug 3.5”
∙These drives are accessible from the front.
∙Each drive bay can take a full height SCSI LVD drive.
∙The eight drives are arranged on two separate back planes. Each back plane supports four drives. The default IDs of these drives are 0, 1, 2, and 4.
∙Access to the back planes is through two Wide SCSI cables. These cables can be connected, for example, to two channels on a RAID controller.
Cooling | There are three fans mounted in the front 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 and one |
| additional rear fan. |
| ∙ 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 three front mounted fans has an alarm. When one of the fans fail, the RED LED for that fan comes on and the buzzer goes off.
There is an alarm for the
Note:There is an Alarm Mute switch that will turn off the buzzer. While the buzzer is muted, the RED LED for the Alarm Mute is on.
Cont’d
4 Megaplex II Chassis Guide