mongoDB backup and restore

Backup

-[28701]% mongodump --version

mongodump version 2.0.3

-[28680]% mongodump -d test -o /tmp/mongobackup/

connected to: 127.0.0.1
DATABASE: test   to     /tmp/mongobackup/test
        test.iwa to /tmp/mongobackup/test/masaki925.bson
                 1 objects
        test.system.indexes to /tmp/mongobackup/test/system.indexes.bson
                 3 objects

-[28699]% tree /tmp/mongobackup/

/tmp/mongobackup/
└── test
    ├── masaki925.bson
    └── system.indexes.bson

Restore

-[28702]% mongorestore --version

mongorestore version 2.0.3

-[28700]% mongorestore -d test_restore /tmp/mongobackup/test/

connected to: 127.0.0.1
Sat Feb  2 10:57:44 /tmp/mongobackup/test/masaki925.bson
Sat Feb  2 10:57:44      going into namespace [test_restore.masaki925]
1 objects found
Sat Feb  2 10:57:44 /tmp/mongobackup/test/system.indexes.bson
Sat Feb  2 10:57:44      going into namespace [test_restore.system.indexes]
Sat Feb  2 10:57:44 { key: { _id: 1 }, ns: "test_restore.masaki925", name: "_id_" }
1 objects found

More Info

Backup Strategies for MongoDB Systems — MongoDB Manual
http://docs.mongodb.org/manual/administration/backups/