This might be a fun one to discuss...   I'm not even sure this is problematic 
or no big deal at all.  I'm leaning towards no big deal.    I bring it up 
because the behavior is unlike any other server I have (though that doesn't 
necessarily mean it's wrong/bad).


I have a physical server running Windows 2012 R2 with 24GB of physical memory.  
Paging file is set to be managed by the OS and is currently 4.58GB in size.  
The server is not heavily used.


What's strange is, the server's paging file usage is constantly upwards of 90% 
-- which is unlike any other servers I manage, including servers that are 
running on the -same- hardware spec, -same applications-, etc.   The server in 
question with the 90%+ paging file usage is a bit of an anomaly.


Few things to note...

1. The server's Committed Bytes is always hovering around 12GB or so... which 
is way below the Commit Limit (I think is 28GB or so, (physical memory + 
virtual memory)).   So that seems to be completely normal.


2.  The server's Page Faults/sec and Pages/sec are nearly identical with other 
servers I have that are serving up the same roles/functions and with the same 
hardware specs.  So that also seems completely normal.


3. The server's Available Memory is always around 50%. So that also seems to be 
completely normal.


4. Because of the 90% Paging File Usage, the server's c: drive "Disk Write Time 
%"  is noticeably higher (averaging around 20% utilization) than other servers 
(which average around 3% utilization), but it's obviously not high enough that 
it's affecting performance.   I'd also expect to see higher Disk Write Time % 
with a more heavily utilized Page File anyways.


5. The server's Paging File Usage hovers around 90% (a reboot will lower it 
temporarily but will return back to 90% after 2-3 days) continually.  The other 
servers I have that are serving up the same roles/functions and with the same 
hardware specs usually show around 0-10% Paging File Usage.  Big difference.


6. The paging file itself, seems to be used, as far as process/bytes go, by SQL 
(there's a very -small- app using SQL on the box) and also by Java.  However, 
nearly identical servers with the same apps (and SQL too) and hardware specs, 
don't show the same high Paging File Usage results.


All in all, there's seemingly nothing wrong, but it bugs me that the Page File 
Usage on this particular server is so high.   It SEEMS like perhaps there's 
just something wonky with the SQL and/or Java apps on this particular box that 
are using the Pagefile so much versus numerous other similar servers...


I guess I'm curious... Would any else bother spending the time to figure out 
what's going on with the Pagefile? Ha.   Like I said, there's no real 
performance hits or problems so maybe it'd be a waste of time, except for 
figuring it out for curiosity's sake.




Jesse Rink

Source One Technology, Inc.

HP Partner

262 993 2231



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