Your directory scheme is reasonable; this is similar to what CPAN uses for storing files in the authors' directory. You might check the CPAN.pm module in your installation for details on how to use this sort of scheme.

One difference is that takes the prefix of a file name, allowing the suffix to be of arbitrary length: 

123.jpg -> /1/12/123.jpg
114884.jpg -> /1/11/114884.jpg

[download]
This has the advantage of (1) having a uniform algorithm over all files to generate the file path and (2) being exapndable in your case to beyond 1_000_000 files.

-Mark

In reply to Re: Need directory scheme to store 400,000 images by kvale
in thread Need directory scheme to store 400,000 images by markjugg

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