[Beowulf] PXE boot with X7DWT-INF IB onboard card

[Vincent Diepeveen]

You can boot over PXE using normal network cables and boot over the  
gigabit ethernet using a cheap ethernet
router.

On Nov 12, 2012, at 12:33 PM, Duke Nguyen wrote:

> Hi folks,
>
> We are still on the way of building our first small-cluster. Right now
> we have 16 diskless nodes 8GB RAM on X7DWT-INF and a master also on
> X7DWT-INF with 120GB disk and 16GB RAM. These boards (X7DWT-INF) has
> built-in Infiniband Card (Infiniband MT25204 20Gbps Controller), and I
> hoped that we can create a boot server on the master node for the 16
> clients using IB connection.
>
> Unfortunately after reading, I found out that our built-card is too  
> old
> for Mellanox FlexBoot:
>
> $ lspci -v | grep Mellanox
> 08:00.0 InfiniBand: Mellanox Technologies MT25204 [InfiniHost III Lx
> HCA] (rev 20)
>      Subsystem: Mellanox Technologies MT25204 [InfiniHost III Lx HCA]
>
> whereas FlexBoot requires at least Connect2X-3X to work with.
>
> My questions are:
>
>   * any body using the same (or similar main boards) and was able to
> boot using PXE?
>   * if PXE server with Infiniband is impossible, then it is OK with a
> gigabyte connection? Or should we go for 16 disks for these 16 clients
> and dont care much on boot over IB or IP? (more money, of course)
>
> Thanks,
>
> D.
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