I am working on requirement to host multi tenant Cassandra cluster (or set of clusters) on Amazon EC2 (AWS).
With everything else sorted out, I have below question where I am looking for recommendations: Does Amazon's recent support of EBS optimized images changes whole discussion around EBS vs. ephemeral drives and image size? * Option 1: reserved m1.xlarge (4x420GB drives) is $0.187/hr * Option 2: reserved m1.large EBS-optimized is $0.119/hr (~$50/month less than m1.xlarge, but $168/month for 4x420 standard EBS volumes): costs $120/month more, but additional recovery options Given Cassandra is designed to survive failures, combining replication factor 3 and backing-up to S3, I think should be enough for back up. Please advise. Thanks, Rahul Gupta DEKA Research & Development<http://www.dekaresearch.com/> 340 Commercial St Manchester, NH 03101 P: 603.666.3908 extn. 6504 | C: 603.718.9676 This e-mail and the information, including any attachments, it contains are intended to be a confidential communication only to the person or entity to whom it is addressed and may contain information that is privileged. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please immediately notify the sender and destroy the original message. ________________________________ This e-mail and the information, including any attachments, it contains are intended to be a confidential communication only to the person or entity to whom it is addressed and may contain information that is privileged. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please immediately notify the sender and destroy the original message. Thank you. Please consider the environment before printing this email.