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partitioning drives, cluster size?

silk186

silk186

[H]ard|Gawd
Joined
Feb 26, 2008
Messages
1,628
I've been reading up on this a bit as i'm formating drives, shuffling files and replacing drives.
What cluster (allocation unit) size do you use for your NTFS drives? It sounds to me that 64k is the best for my secondary drives that store photos, video and music files. What about the SSD with your OS, 4K?

I've done some reading and generally understand a bit about it. Smaller allocation size wastes less space and is more suitable for small files which is common in programs. Larger allocation when handling larger files. The difference in wasted space i understand is negligible, what about different in performance?
 
You're correct. Use 64k for large or contiguous files.
 
I haven't found any recent articles on this. I understand that 64k is more efficient for larger files.
Will changing from 4k to 64k make any real word difference in performance or free space? It seems that nobody is interested in mechanical hard drives and the changing the allocation size for an SSD is a bad idea because it can cause problems and it is typically an OS drive with many small files.
 
On SQL server, you can generally see a quite sizable return on your 64k investment :)
 
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