Waiting on IO: The Straw That Broke Virtualization’s Back -- Virtualization Review

Waiting on IO: The Straw That Broke Virtualization’s Back

Expert advice on the right infrastructure for your databases

Despite the increasing horsepower of modern multi-core processors and the promise of virtualization, we’re seeing relatively little progress in the amount of concurrent work they accomplish. That’s why we are having to buy a lot more virtualized servers than we expected.

On closer examination, we find the root cause to be IO-starved virtual machines (VMs), especially for heavy online transactional processing (OLTP) apps, databases and mainstream IO-intensive workloads. Plenty of compute power is at their disposal, but servers have a tough time fielding inputs and outputs. This gives rise to an odd phenomenon of stalled virtualized apps while many processor cores remain idle.

Download this paper to learn:

How to increase IO rate to keep up with the computational appetite while shaving costs?
The parallel IO technology designed to process IO across many cores simultaneously, thereby putting those idle CPUs to work
Discuss DataCore’s underlying parallel architecture
How parallel IO results in a markedly different way to address the craving for IOPS (input/output operations per second) in a software-defined world.

(PDF | 6 Pages | 600 KB)

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