[OpenAFS] "Constant" disk writing

Derrick Brashear shadow@gmail.com
Mon, 10 Aug 2009 11:57:19 -0400

On Mon, Aug 10, 2009 at 11:43 AM, John W Higgins<wishdev@gmail.com> wrote:
> Good Morning Jeffrey,
> On Mon, Aug 10, 2009 at 3:53 AM, Jeffrey Altman
> <jaltman@secure-endpoints.com> wrote:
>> I'm just wondering. =A0Why do you believe that the file server
>> (or other) processes are writing to your volumes as opposed to
>> reading from them or writing to log (or other) files?
> First, thanks for the response.....
> I'm basing this on a couple of things - first when I shut down the OpenAF=
> server the disk activity stops. Second, I ran iotop to examine the io usa=
> and the writes were going to the 2 loop devices I was using to test OpenA=
> and nothing else is using that area but OpenAFS.

I assume iotop lists process names; Given that there's no process
called OpenAFS, what did it really tell you?
Does it list fds?

> And finally, top shows
> fileserver popping up every 10 seconds when the disk activity to the loop
> devices is occurring and then it goes back to sleep.
> Is it possible that because I'm using loop devices something out of the n=
> is occuring?


What version of OpenAFS? I suppose it's possible the background sync
thread is in some way hurting you.