Help needed in breaking large solr index file into smaller ones

[Narsimha Reddy CHALLA]

Hi All,

      My solr server has a few large index files (say ~10G). I am looking
for some help on breaking them it into smaller ones (each < 4G) to satisfy
my application requirements. Basically, I am not looking for any
optimization of index here (ex: optimize, expungeDeletes etc.).

Are there any such tools available?

Appreciate your help.

Thanks
NRC