determining the bytes-per-inode (mke2fs) value

Hi all,
I have a running diskarray serving as a Astronomical data server
disk. The data set is basically huge from the raido telescope, but
some others are small (descriptions). Now there will be a new
diskarray (and will copy the current one to the new) and I am
formatting this new one by mke2fs. I was told that ext3 filesystem can
be finetunned at the bytes-per-inode value according to the real file
size situations, to be 4k, 8k, 1M, 4M,,,,etc.

Now my question is: is there a benchmark method that I can run it on
my current running diskarray, and report/suggest how big the bytes-per-
inode shall be? so that I can setup the new array (mke2fs it)
accordingly?


Thanks in advance
have a nice day and nice night.


Joshua

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