[Beowulf] ipoib routing

[John Hearns]

Chris, we are talking about exactly the same hardware here.
If you opened one up there was a SATA DOM which contained the OS and the
configuration script.
For the record, the partition table on the SATA DOM had been erased by
shall we say an injudicious network boot.
I used the live Systsm Rescue CD http://www.system-rescue-cd.org/   This
has a utility which will scan a disk and restore partition tables.
My advice - always have a copy of this handy.

On Wed, 12 Dec 2018 at 07:48, Chris Samuel <chris at csamuel.org> wrote:

> On 11/12/18 2:40 pm, John Hearns via Beowulf wrote:
>
> > Michael, yes.  Panasas engineered IPOIB to Ethernet routers for their
> > storage platform. Remember that until the latest generation of their kit
> > they ran on BSD, which had no Infiniband capability. Panasas IB routers
> > booted from an onboard SATA DOM, which was quite a neat solution.
>
> Sounds like they've changed a bit since we had them at VLSCI (circa
> 2010), they were just two SuperMicro 2-in-1U boxes, each with a QDR IB
> and 10gigE and with a relatively vanilla CentOS 5 install and a script
> to configure them.
>
> Mind you they didn't need to be complicated, they just ran and ran. We
> lost 1 at one point due to a hardware problem and the solution was to
> replace the whole unit of 2 nodes. From memory we just needed to take
> the routes out of the Panasas config and the cluster they were routing
> for (and put them back when the replacement arrived).
>
> All the best,
> Chris
> --
>   Chris Samuel  :  http://www.csamuel.org/  :  Melbourne, VIC
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