The x80 series Sun Fire servers have built in RSC's (Remote System
Controller).  These are well documented in the Sun docs for the server and
searchable on docs.sun.com.  The RSC's are in a PCI slot on the rear of the
servers and are capable of connecting via (1) 10Mb Ethernet, (2) USB serial
or (3) modem.  I prefer the Ethernet connection as I can support up to 48
servers with a single Cisco 2950G-48 switch.  Just hooking up to the RSC
will not get you console access, you'll need to redirect the console from
the tty in the eeprom (this is documented in the RSC 2.X documentation for
the redirects.  
The RSC (and ALOM on x40 series) also provide the ability to power down and
power up the server remotely (via ethernet, or modem) and also provides some
monitoring functionality that may be sent via SNMP or email.  Server reboots
may be monitored in this manner since the RSC has a backup battery that when
the server reboots or resets, a reset message is sent.  Temperature and
other basic environmentals may also be monitored.
Sun also has a utility which may be installed on a workstation that will
provide a graphical connection to the RSC.

I like the ethernet best for console access.  Run ALL our servers headless
and have a couple of Sun Blade 150's on the data center floor for those rare
times in which you need to touch the server and have a console close by.
Using the serial port will require a terminal server of some sort and most
centers I work in will not allow us to connect a phone line to the modem...
So ethernet is the way.  The disadvantage is that the RSC's are only capable
of telnet... So if you're trying to secure the plain text protocols you may
find that putting the console devices into a "Control Network" behind a
firewall or IP filter is the right way to go.

Hope this helps.

Mike Hall
[EMAIL PROTECTED]


On 3/3/05 2:02 PM, "Grindell, Joan M." <[EMAIL PROTECTED]> wrote:

> Ok, we mostly have newer machines 280R's, V880's.  Thanks I'll check it out.
> What would you attached the console port to?
> 
> Thanks
> Joan
> 


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