what is the best way to share 200mb .DAT file (for multiple instant)

[a...@babaent.net]

Hi,

I am using node.js with redis and couchbase(no sql like mongodb)

I have multiple instant, and each one of then when the instant start - save the .DAT file on the memory,

I want to save some memory and use only one instant to save the .DAT file . (and still i need a  fast way to read from the array by index) 

the .DAT file hold uint8Array with over 10m items.

Any one has a great idea?

Thanks