[2k3 r2] dfsr.exe CPU and disk I/O extremely high, greatly affecting share access

hello,

i experiencing issue dfsr.exe of 1 of member servers extremely high .

reviewing logs, see no identifiable errors.

 

here necessary file versions:

 

c:\>filever c:\windows\system32\dfsr.exe

----- w32i   app enu   5.2.3790.4656 shp  1,707,008 01-27-2010 dfsr.exe

 

c:\>filever c:\windows\system32\drivers\dfs.sys

--a-- w32i   drv enu   5.2.3790.3959 shp     34,816 02-17-2007 dfs.sys

 

c:\>filever c:\windows\system32\dfssvc.exe

--a-- w32i   app enu   5.2.3790.3959 shp    164,864 02-17-2007 dfssvc.exe

 

any input on how troubleshoot issue appreciated.

 

thanks,

matt

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<small> unanswered threads:
• dfs / rdc size estimations?
• online backup of active directory / ese db, command line interface esent.dll's jetbackup() function. </small>

hi matt,

as there no further clue, please first check if caused antivirus programs. disable security programs , check if issue still exists. if so, have try boot clean boot mode see situation.

1) click start, click run, type msconfig in open box, , click ok.
2) click general tab, click selective startup.
3) under selective startup, click clear following check boxes:

load startup items

4) click services tab, click select hide microsoft services check box, , click disable all.

5) click ok, , click restart.

if issue did not occurs in clean boot mode should caused third party programs disabled in startup items , services tab. narrow down find out root cause.

 

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shaon shan |technet subscriber support in forum |if have feedback on our support, please contact tngfb@microsoft.com

Windows Server  >  File Services and Storage