I recently had to configure iSCSI with multipathing on RHEL 6. It wasn’t too hard and these instructions will presumably work with other Redhat based versions & distros

Used in conjunction, NginX and Node.JS are the perfect partnership for high-throughput web applications. They’re both built using event-driven design principles and are able to scale to levels far beyond the classic C10K limitations afflicting standard web servers such as Apache. Out-of-the-box configuration will get you pretty far, but when you need to start serving upwards of thousands of requests per second on commodity hardware, there’s some extra tweaking you must perform to squeeze every ounce of performance out of your servers.

Create and configure lightweight, reproducible, and portable development environments.

Tachyon is a fault tolerant distributed file system enabling reliable file sharing at memory-speed across cluster frameworks, such as Spark and MapReduce. It achieves its high performance by leveraging lineage information and using memory aggressively. Tachyon caches working set files in memory, and enables different jobs/queries and frameworks to access cached files at memory speed. Thus, Tachyon avoids going to disk to load datasets that are frequently read.