Re: Network interconnect traffic on RAC

On Wed, Feb 10, 2010 at 12:56 PM, Aaron Leonard <aachleon_at_gmail.com> wrote:

> One thing to note though...the AWR won't show if your network or sysadmins
> have plugged other devices into your interconnect switch and started pumping
> other data through it. I recently ran into this, so make sure your
> interconnect switch is truly dedicated to RAC before completely relying on
> those AWR stats for this purpose.
>
>
>
> On Wed, Feb 10, 2010 at 12:42 PM, Andrew Kerber <andrew.kerber_at_gmail.com>wrote:
>
>> There is traffic statistics available in the AWR, but if you want more
>> than that you would have to use some sort of network sniffer. However, I
>> would think the AWR would be sufficient, I think it shows number of blocks
>> in each direction,
>>
>>
>> On Wed, Feb 10, 2010 at 12:34 PM, Karl Arao <karlarao_at_gmail.com> wrote:
>>
>>> Hi List,
>>>
>>>
>>> How do you measure the network traffic going on your RAC interconnect?
>>> on the Oracle and OS side...
>>>
>>> Can you share the efficient tools that you use?
>>>
>>> I'm trying to figure out (aside from the GC wait events popping out on
>>> the AWR)... how would you know if your interconnect is congested?
>>>
>>> Let's say I had some RAC node evictions, I want to measure if it's
>>> really the interconnect that is congested (I'm looking for the
>>> numbers).. the same way that I'll be looking on the CPU scheduling and
>>> disk IO issues...
>>>
>>>
>>>
>>>
>>> - Karl Arao
>>> karlarao.wordpress.com
>>> --
>>> http://www.freelists.org/webpage/oracle-l
>>>
>>>
>>>
>>
>>
>> --
>> Andrew W. Kerber
>>
>> 'If at first you dont succeed, dont take up skydiving.'
>>
>
>

-- 
Andrew W. Kerber

'If at first you dont succeed, dont take up skydiving.'

--
http://www.freelists.org/webpage/oracle-l