16. Amazon EC2 Instance Types 32-bit = Don’t Use Typical MongoD ConfigD/ Arbiter Big MongoD 32-bit = Don’t Use High CPU not necessary
17. OS Turn off atime Raise file descriptor limits cat >> /etc/security/limits.conf << EOF * hard nofile 65536 * soft nofile 65536 EOF DO NOT use large VM pages Use ext4, xfs Use RAID RAID10 on MongoD RAID1 on ConfigbDB Warning! Known problems with Ubuntu 10.04 & EBS https://bugs.launchpad.net/ubuntu/+source/linux-ec2/+bug/614853 https://bugzilla.kernel.org/show_bug.cgi?id=16991
24. 3-Node Replica Set Your App Large Large Large MongoD (Primary) MongoD (Secondary) MongoD (Secondary) RAID 10 RAID 10 RAID 10
25. 2-Nodes + Arbiter Your App Large Large Micro MongoD (Primary) MongoD (Secondary) Arbiter RAID 10 RAID 10
26. 3-Node Replica Set Your App US West US East Large Large Large MongoD (Primary) MongoD (Secondary) MongoD (Secondary) Priority = 0 RAID 10 RAID 10 RAID 10
30. Backup / Restore EBS Snapshots Also for rapid replica provisioning LVM Snapshots Use secondaries for zero downtime backups http://www.mongodb.org/pages/viewpage.action?pageId=19562846