[rescue] best rackmount Sun (used) for $1k
pat at computer-refuge.org
Wed Aug 2 10:31:19 CDT 2006
On Wednesday 02 August 2006 02:21, Bill Bradford wrote:
> On Wed, Aug 02, 2006 at 12:51:18AM -0400, Patrick Finnegan wrote:
> > Sending to NY, about $500-600 if it's going to a residence (per rack).
> > Subtract $100-150 if it's going to a business with a loading dock, or you
> > can pick up from a shipping terminal.
> Is it possible to turn one of the nodes into a working system without
> spending too much?
> Anybody wanna trade me a halfway-decent AIX box for a D1K full of 9G
> disks and the PCI controller card to go with it? 8-)
The main problem you need to overcome is that the system need a reasonably
high-current 48VDC supply. I'm not exactly sure how much current, but I know
it shouldn't be more than 56A peak per node (and is probably much less).
You can almost certainly reduce the power requirements a lot by removing one
(or more) of the 4 quad-processor CPU modules.
The first serial port is tied into a serial console "loop" which is basically
a sync. serial line which connects all the machines in one frame to the power
supply in the frame, which has a card that converts the sync. serial into an
RS-232 async serial port that goes to the "control workstation". The service
processor also gets a +12VSB feed from that port (which you'll need to
replicate, but it's low current, so that shouldn't be too difficult).
You *should* be able to use one of the other two serial ports on the machine
(which are set up as DE-9 connectors) as a console port - it works with the
service processor, and Linux, but I've not tried it with AIX. However, it
*might* work. If I get some free time today (not sure how, but... maybe),
I'll try doing an AIX install on one using an "alternate" console port.
Also, the machine is designed for a 24" rack-mount chassis, though it
shouldn't be too unreasonable to stick it on a shelf on its side in a
(reasonably deep) 19" rack, though it will make it harder to service... or
you could just stick it on top of a short rack. :)
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