Re: basic questions about partitions

[Tom Ammon <tom.ammon-wbocuHtxKic@public.gmane.org>]

  Okay, how about this.

With ethernet and a linux server, I can set up up aliases (virtual IP 
addresses) and assign multiple IPs to a single NIC. Can this be done 
with an HCA and IPoIB? For example, could I configure ib0:1 to be 
192.168.0.1/24 and ib0:2 to be 10.0.0.1/24?

I have tried this on a RHEL5 box and it doesn't seem to want to accept 
it, but I don't know if there is another piece somewhere that I need to 
configure.

Tom

On 7/12/2010 1:06 PM, Hal Rosenstock wrote:
> On Mon, Jul 12, 2010 at 3:03 PM, Hal Rosenstock
> <hal.rosenstock-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>  wrote:
>> Hi Tom,
>>
>> On 7/12/10, Tom Ammon<tom.ammon-wbocuHtxKic@public.gmane.org>  wrote:
>>>    Hi,
>>>
>>> I have some basic questions about IB partitions.
>>>
>>> Can an HCA port belong to more than 1 partition at a time?
>> Yes.
>>
>>> How do you configure partitions with opensm? From reading the opensmd
>>> man page, it looks like you just create a file called
>>> /etc/osm-partitions.conf, with port GUIDs and such, but is this current?
>> The default location depends on how OpenSM is configured/built.
> I missed this the first time around:
>
> and yes, the syntax indicated is current.
>
> -- Hal
>
>>> I ask because according to the man page the opensm configuration file is
>>> in /etc/opensm/ . Can you tell opensm where to look for the partitions file?
>> Yes, with either the -P option on the command line or
>> partition_config_file line in the options file.
>>
>> -- Hal
>>
>>> Thanks,
>>>
>>> Tom
>>>
>>> --
>>> Tom Ammon
>>> Network Engineer
>>> Office: 801.587.0976
>>> Mobile: 801.674.9273
>>>
>>> Center for High Performance Computing
>>> University of Utah
>>> http://www.chpc.utah.edu
>>>
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-- 
Tom Ammon
Network Engineer
Office: 801.587.0976
Mobile: 801.674.9273

Center for High Performance Computing
University of Utah
http://www.chpc.utah.edu

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