Hi Paul,
It depends on what you will be using geoserver for. If you are going to rely 
heavily on tile generation via geo-web-cache, you will have to deal with 
potentially many hundreds of thousands of small PNG files, just as an example, 
a map rendered as google mercator lvl 5 - lvl 17 covering a large metropolitan 
city (20km radius) will yeald around 800 files ranging from 1.5 kbytes - 50 
kbytes, depending on the transparency, number of colors etc. A 250.000 sq. km 
service will take around 22 milion tiles depending on the generated scales. 

I would leave it at the default NTFS 4 kbytes if this would be your deployment 
scenario.

Sorin RUSU
GIS 

    Pe luni, 13 august 2018, 17:34:39 EEST, Paul Wittle via Geoserver-users 
<geoserver-users@lists.sourceforge.net> a scris:  
 
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Hi folks,
 
  
 
I’d like to ask a hardware question if that is okay as my IT department have 
just asked me and I wonder if it might be of interest to others as well.
 
  
 
They have asked me if there is any official recommendation / documentation on 
the allocation size to use when configuring an NTFS disk drive for us by a 
GeoServer?
 
  
 
I’m not aware of an official recommendation myself. I’m told by my IT that our 
default is 4kb but things like exchange servers may use 64kb and the right 
choice may impact on performance depending on the application in question.
 
  
 
A similar question came up recently when we were looking at de-duplication 
options for the drives as the raw data files which our GeoServer uses are also 
used by our user network drive. We hoped that we might be able to de-duplicate 
the two drives to save on space but the results were not worth further 
investigation; it was suggested then that it might be to do with the small file 
sizes of most files in a GeoServer data directory (certainly if looking at GWC 
data).
 
  
 
I’m guessing this is all pretty specific to people deploying GeoServer in a 
corporate environment though so I hope the question is not too niche to be of 
interest.
 
  
 
Best Regards,
 
  
 
Paul Wittle
 
GIS Developer
 
Insight, Intelligence & Performance
 
Chief Executive’s Department
 
  
 
County Hall
 
Dorchester
 
Dorset. DT1 1XJ
 
Tel: 01305 228473
 
E mail: p.wit...@dorsetcc.gov.uk
 
  
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