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New NL-400's
Hello All,
We are now in the process of installing our new cluster that is currently comprised of three NL400's. It seems that the Installation guide that is packaged with the nodes is potentially out of date or just lacking some information. For instance the back panel of the nl's has a VGA port 2USB and then an RJ-45 above the two USB's. But the guid does not mention their use. Does anyone know if the vga and usbs can be used to hook up a standard datacenter crash-cart to do the initial configuration instead of the serial port.
Is the RJ-45 above the USB ports actually an ethernet for maybe out-of-band management, or is that what ext-1 is for?
Then the install guide mentions configuring the Internal inifiband to use ipv4? In my past experience with infiniband it simply uses it's own internal addressing. Ideas here?
Thanks,
Jim
AndrewChung
132 Posts
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October 30th, 2014 22:00
The VGA port should not be used. The output is redirected to the serial port when the kernel comes up so it's not going to be of much use to you.
The RJ-45 above the USB port is not used in OneFS.
EXT-1 and EXT-2 should be side by side. If you have the optional 1 GigE card you will have 2 additional ports on a PCI-E card. If you have the 10 GigE option you will have 2 10 GigE SFP+ ports on a PCI-E card.
The system does require an IP address over the Inifiniband. You can use any network segment you want as long as the addresses you use on the IB side never overlap any IP that a client could be using. The cluster uses the IPs to communicate amongst each other for job coordination tasks and a lot of other back end work. Data also flows on the back end but the data flow does not require an IP address, just the management. As an example, from 1 node you can SSH into any other node via the IB interface's IP address. You can do this even if you have no external network connections on any of the nodes.
mattashton1
93 Posts
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November 10th, 2014 00:00
Hi FlatLander,
Did Andy answer all of your questions? If so, then please mark this question as "Answered".
If not, what else can we explain?
Cheers,
Matt
FlatLander2
4 Posts
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November 10th, 2014 05:00
Yes, Andy's responses were very helpful. Got everything powered up, configured and moving forward now! Thanks