Sun Microsystems, Inc.

Netra 240 Server Architecture P7

Front Access

Normal operations in a deployed environment typically involve, at some point, tasks such as putting a server in standby mode, swapping a hard disk drive, or re-configuring the system. With the Netra 240 server, administra- tors can accomplish such tasks through a push button switch, a rotary switch, and a System Configuration card— all accessible behind the front bezel. Administrators can access these simple-to-use features by opening the front of the server and flipping open the front bezel, which stays down in place.

Hard disk drive

Hard disk drive

System Configuration

Push button

Rotary switch

Bezel

Card

switch

 

 

Figure 2-2: The front bezel flips down to open. Hard disk drives and the System Configuration Card are accessible from the front.

The push button switch is normally used to power on the server. Administrators can also use the switch to put the server in a power-standby mode (the rotary switch must be set to enable standby mode). In standby mode, the server is not functional but ALOM continues to run.

The rotary switch on the Netra 240 server provides added control over the system power state and security for server operation as well as a level of diagnostics. Administrators can use the rotary switch to:

Disable power control through the push button switch and/or remote power control

Force the system into the standby state

Write-protect internal PROMs (OBP POST, and System Management Controller PROMs)

Force diagnostics tests (such as power-on self-tests [POST]) during system boot

Disable suspension to the boot PROM or kernel debuggers (such as Kadb)

Motherboard

The Netra 240 server utilizes a state-of-the-art, compact motherboard. Features integrated into, or supported by, the motherboard include:

Up to two UltraSPARC IIIi processors, each with 1 MB of L2 cache

Flash PROM housing the system firmware, internal diagnostics, and POST

Eight Sun DDR-1 SDRAM PC2100 DIMM slots (four per processor)

Four 10/100/1000BaseT Ethernet ports

Internal Ultra160 SCSI connector for internal hard disks

External Ultra160 SCSI connector for optional mass storage devices

Two asynchronous serial ports (one general purpose, one for server management)

One 10BaseT server management port

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Sun Microsystems 240 manual Front Access, Motherboard