Re: [Beowulf] Introduction and question

2019-02-28 Thread Chris Samuel
On Saturday, 23 February 2019 6:30:32 AM PST Will Dennis wrote: > My first question for this list is basically “do I belong here?” Very much so, yes! :-) There's such a huge range of installations that people on this list run, from the very small to the very large, but they're all important in

Re: [Beowulf] Introduction and question

2019-02-28 Thread Chris Samuel
On Thursday, 28 February 2019 12:41:57 AM PST Bill Broadley wrote: > * avoid installing/fixing things with vi/apt-get/dpkg/yum/dnf, use ansible > whenever possible. Eventually you'll have to reinstall and it's painful > to manually apply months of changes. Another approach is to build a RAM

Re: [Beowulf] Introduction and question

2019-02-28 Thread Darren Wise
Another one of us! I got a rush just then when I seen the figures 5-30 servers in collections and then looked at my home built rig. https://wisecorp.co.uk/images/1.jpg https://wisecorp.co.uk/images/2.jpg https://wisecorp.co.uk/images/3.jpg *Yes, you belong here, sorry I'm rammed with work cur

Re: [Beowulf] PXE/kickstart and 10GBase-T issues

2019-02-28 Thread Jonathan Engwall
Cisco's website info on PortFast makes me wonder how it did you any good at all, while in a transition. Any misconfiguration could block all ports, some configurations being "type-inconsistent." I love these puzzles and will watch this carefully. Sorry I cannot be of more help. Jonathan Engwall On

[Beowulf] PXE/kickstart and 10GBase-T issues

2019-02-28 Thread Joshua Baker-LePain
I've got a few-hundred node cluster here that I've had humming along for several years. All the nodes are set to PXE boot. The default entry in the PXE menu is to boot off the local hard drive, and we drop in a kickstart if need be (new nodes, node refreshes, I just feel like it, etc). I'm curre

Re: [Beowulf] Anybody here still use SystemImager?

2019-02-28 Thread Joe Landman
On 2/27/19 9:08 PM, David Mathog wrote: Joe Landman wrote: [...] I'm about 98% of the way there now, with a mashup of parts from boel and Centos 7. The initrd is pretty large though. Wasted most of a day on a mysterious issue with "sh" (busybox) not responding to the keyboard with a 3.10.

Re: [Beowulf] Introduction and question

2019-02-28 Thread Bill Broadley
Yes you belong! Welcome to the list. There's many different ways to run a cluster. But my recommendations: * Making the clusters as identical as possible. * setup ansible roles for head node, NAS, and compute node * avoid installing/fixing things with vi/apt-get/dpkg/yum/dnf, use ansible w