sydetys Posted February 13, 2008 Report Share Posted February 13, 2008 Allocation unit size in NTFS file system is by default 4096 bytes? Is there any reason to raise that?Lowering allocation unit makes HDD slower, right? how about if set to 64 Kb? that´s maximum I can use in Windows.thanx Quote Link to comment Share on other sites More sharing options...
Mephisto Posted February 13, 2008 Report Share Posted February 13, 2008 Biger allocation unit means faster data reading/writing. But if you have a lot of small files, it wastes space.eg you have 64kB allocation unit and 10kB file, the file takes 64kB on hard drive despite of its real size is 10kB.For system partition is better lower allocation unit (because of big amount of small files) and for data partition is better higher one. Quote Link to comment Share on other sites More sharing options...
ɹəuəllıʍ ʇɐb Posted February 14, 2008 Report Share Posted February 14, 2008 Some partitioning tools (e.g. Partition Magic) have a function that analyzes an existing partition, then calculates the optimal cluster size for that partition. I have found that most average partitions do well with the default 4K, but I have one single partition that is formatted with a 64K cluster size (as it contains only one single large (Outlook PST) file). Quote Link to comment Share on other sites More sharing options...
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