perfSONAR User Q&A and Other Discussion

[Piotr Pikusa <>]

Hi Ralph!

In short, please read http://www.gridforum.org/documents/GFD.23.pdf, 
section 7 and in details section 7.2 to get answer what the utilization 
is. If you have any questions after reading, please write to the group.


Ralph Niederberger wrote:
> Dear all,
>
> I am just in the process of setting up an SQL-MA.
>
> There are tables for discards, errors and utilization.
>
> Normally I get input and output packets per interface via SNMP.
> How have the sql tables to be defined to store those values, i.e
> what is meant with utilization?
>
> Further is the direction of traffic defined by the metadataId, e.g. by 
> specifying
> metaid-interface-in and metaid-interface-out?
>
> And what do I have to store in the db field "value"? Is it the 
> utilization
> of the interface, which means before inserting data I have to 
> calculate this
> dependend on the last time I stored a value (packets in since last 
> inserting
> devided by time since last inserting?
> Or do I have to store the packet count of the interface only and when
> requesting infos, the utilization will be calculated dependend on the 
> time
> interval I specify within the client request?
>
> many thanks in advance
>
> Ralph