Discussion Forums > Technology
NTFS or exFAT?
blubart:
--- Quote from: lMarchel on February 14, 2010, 03:34:36 PM ---Just one last question... What shoul be the Allocation Unit Size? I mean which should I choose?
And what does it mean exactly?
Sorry for being such a noob guys :P. But you're all I have...
--- End quote ---
choose "default allocation size" (that would be 4KB for NTFS if i remember right)
http://en.wikipedia.org/wiki/Allocation_unit
it's basically the unit at which space is given out to save files.
with a 4KB cluster size files ranging in size from 0 to 4KB are stored in a single cluster, from 4 to 8KB in two clusters and so on...
lowering the size results in smaller supported partition sizes as the implemented cluster limit for NTFS is 2^32 −1.
K7IA:
If this is an external hdd you are talking about, you should be careful with NTFS.
If not just ignore this.
lMarchel:
--- Quote from: enginarc on February 14, 2010, 04:08:36 PM ---If this is an external hdd you are talking about, you should be careful with NTFS.
If not just ignore this.
--- End quote ---
Thanks blubart!
But it is an external HDD, what's the difference?
Blanchimont:
--- Quote from: enginarc on February 14, 2010, 04:08:36 PM ---If this is an external hdd you are talking about, you should be careful with NTFS.
If not just ignore this.
--- End quote ---
I convert all my external drives to ntfs (after stripping out anything preloaded put in them...) before use, so care to elaborate a bit?...
K7IA:
If you are connecting the external hdd via a USB cable, make sure you use the "Safely Remove USB device" feature of windows before physical removal.
Or it might corrupt the data on the hdd.
"{Delayed Write Failed}" error message when you unplug a USB 2.0 storage device => http://support.microsoft.com/kb/818788/
--
For the "allocation unit" decision, it highly depends on what you intend to store on the hdd.
For example, if you are going to store anime (big files in general) go with something like 8KB+
Otherwise with small files, you will waste hdd space. A 25kbyte file will occupy 32kbytes of hdd space if you use an 8KB allocation unit size.
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