WAFL_EXEMPT

[droach]

Does anyone know what the WAFL_EXEMPT processes actually do?  Are these background processes that the Filer uses to perform the standard I/O requests to/from the disk subsystems?  Or, do these processes have some other special purpose?  Not finding much information on the Filer's background processes.

Thanks,

Daryl

[arunchak]

Hi,

multi-processor safe wafl_exempt threads  can run in parallel on multiple processors. These threads handle WAFL tasks such as writes, reads, readdir. AFAIK, the purpose is to increase WAFL performance.

Thanks,

  Arun

[droach]

I would still like to know exactly what this process and a few other actually do.  Does anyone know if NetApp has a paper that explains what their background processes do?  I also see messages that the disk_admin process is a "long running process".  Is this something to be concerned about?

mgr.stack.longrun.proc:notice]: Long running process: disk_admin