Sadly, they are collecting stats in preparation of closing our AFS cell down. 
They are trying to determine the impact that shutting down our cell will have 
on the community. 
How many users use our Cell? They are not really concerned about the amount of 
disc space that is in use. Thing is this cell has been in place for so long 
it's hard to determine how deeply this will affect us. 

/sd


Steve Devine
IT Services - Content and Collaboration



________________________________________
From: Jeffrey Altman [[email protected]]
Sent: Monday, March 16, 2015 1:48 PM
To: Devine, Steve
Cc: [email protected]
Subject: Re: [OpenAFS] Metrics on the cell

Steve,

Could you clarify which statistics you are looking to collect?

Is the question "how many users are accessing the cell from OSX, Windows, 
Linux, iOS, etc via native clients?"

Or is the question, "how many files or how much data is accessed from these 
same client platforms?"

To core problem you will face trying to collect numbers such as these is that 
the type of client is agnostic to the servers.  One site that I am aware of 
explicitly assigned alternate port numbers to different OS versions so they 
could be counted by rx debug queries to the file and vl servers.  This approach 
failed when the clients were accessing the servers behind NATs.

 A related question is often "how can I find all of the clients running a 
version of OpenAFS older than x.y.z?"  This data is not available but is easier 
to obtain by modifying the servers to probe the client version on each new 
connection.

There are some differences in the access patterns between the client platforms 
that can be used if you are collecting the audit log data from the file and vl 
servers.

Only windows clients use rxkad authenticated connections for accessing the VL 
servers.

Only windows clients issue get volume info queries to the file servers to 
obtain free space and quota details on a regular basis.

Windows clients include the directory FID as the first entry in every bulk 
status query to the file servers.

OS X clients never issue bulk status queries.

Hope this helpful.

Jeffrey Altman
Your File System Inc

> On Mar 16, 2015, at 5:11 AM, Devine, Steve <[email protected]> wrote:
>
> I have been asked by senior leadership to gather data on the usage of our 
> cell. I can of course tell them how much disc space is in use and parse logs 
> from our filedrawers and FTP service, what I am struggling with is 
> determining access via native OpenAFS Windows, Mac and Linux clients. I've 
> been experimenting with Scout and Afsmonitor but haven't been able to find a 
> definitive solution. It seems like years ago I investigated logging at the 
> fileserver level and discovered that logging for usage wasn't possible.
>
> Has anyone found a way to gather these kind of stats? Thanks for your help.
>
> /sd
>
> Steve Devine
> Michigan State University
>
>
>
>
>
>
>
>
>
>
>
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