MongoDB backup & restore sharded cluster

I have 3 server running mongodb shard cluster with 3 shards, 1 replicates set per shard.

I am looking for solution to backup and restore mongodb shard cluster.

Please help me and give me some idea.

Hello! These docs might be a good place to start:

http://docs.mongodb.org/manual/administration/backup-sharded-clusters/

Feel free to follow up with more specific questions.

If you are looking for an automated backup solution, MongoDirector can help.  We provide a management solution that works with your existing MongoDB servers in a public or private cloud.  Let me know if you'd like to schedule a demo or setup a trial.

Thanks for your help, but all DB server production in local and only connect via local IP, can not access internet and they can not go outside.

If you have another solution for local production, please suggest me.

I am sort of confused with the question. If you have replica sets, they are the back-ups.

A backup protects you from the application corrupting/deleting data or
from a human error for example, replica sets would not help you with
that (you can have delayed secondaries but that is only helpful if you
detect the problem within the configured delay).

replication is for availability; backup is for disaster recovery:

http://www.mongodb.com/blog/post/backup-vs-replication-why-do-you-need-both

Ok. Got it. Replica Sets are for availability only. A back-up is necessary too. Thanks for the info.