[Beowulf] SATA II - PXE+NFS - diskless compute nodes
Buccaneer for Hire.
buccaneer at rocketmail.com
Sat Dec 9 12:03:27 PST 2006
Thank you for writing...
> With 2000+ nodes you should definitely look at remote power control, and
> remote serial console access.
Have it already in place with remote monitoring as well.
> Also you might think of separate install servers for each (say) 500
> machines. Mirror them up to each other of course.
We currently have 5 kickstart servers (one web server), the kickstart file is dynamically altered
to reflect the assigned server.
> Its unlikely that you would ever reboot 2000 machines at once, but think
> ahead to (say) quick power on following a power cut.
We have had to do that during a couple of Hurricanes last year and power outages. We actually have
complete startup and shutdown procedures that are well tested now.
> I would hazard that any DHCP/PXE type install server would struggle with
> 2000 requests (yes- you arrange the power switching and/or reboots to
> stagger at N second intervals).
There are a few modifications you have to make to increase the number of bootps before
So now to figure out my next step. I will need local space for logs and data/temp data files.
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