Fibre Channel (SAN)

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New Contributor
Posts: 2
Registered: ‎04-06-2012

Understanding Performance.

Is there any doc o place where i can discuss or learn about siwthces performance? for instance, i see that, for ports, there it says 4% used and i do´nt understand how it is measured. what does it mean that a port is 8gb? is it 8gb in one way and in the other? this comes, because i have many issues saying that the san is the guilty and i dont have enough tools to use for discussion.

 

thanx.

Brocade Moderator
Posts: 117
Registered: ‎03-29-2011

Re: Understanding Performance.

Hi Gabriel,

 

speed is bidirectional - so speed is 8Gbps in both direction.  Dependent on where you look and which tools, or command, you used to get the 4%, but in most cases it would mean that you used 4% of the bandwidth of that link. Assume that the speed is set to 8gbps, 4% of 800mb/s is around 32mb/s. 

 

If you want to look at raw figures, you can use for example portperfshow (CLI) where you can see transmitt and receive rate for all or a subset of the ports on a switch.   To get an overiew of of performance and configuration,  you can use SAN Health (gathering data under 24hours). BNA can also provide insight into the performance of your fabric(s). 

 

 

 

 


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