Earlier, a client asked a simple question…
how many subdirectories can you have in a directory?
how may files can you have in a directory?
I doing a little research, I came across some basic info to pass along regarding this;
The ext3 file system has a limit of about 32000 subdirs per dir. The maximum number of files per directory is theoretically unlimited (actually around 130 trillion), but performance becomes terrible with above 10 to 15 thousand files. The max number of total files on the file system is limited by the number of inodes you have.
For more information regarding this, please see the following informational links:
http://en.wikipedia.org/wiki/Comparison_of_file_systems
http://en.wikipedia.org/wiki/Ext3
http://answers.google.com/answers/threadview?id=122241
Just a little random info for you… 😉