An advanced rack server system design For Rotational Vibration (RV) performance

Abstract

Data center, as backbone of cloud computing, has been rapidly developing and evolving. Server with high reliability, as one of key infrastructure ingredients for computing, storage and networking segments, is obviously foremost footstone to data center robustness. Based on data collection and failure analysis from Baidu infrastructure maintenance group, 78% of server system failure comes from hard drive. So, effectively reducing hard drive failure rate is crucial to server system reliability. Within the academia as well journals not much data exists around Rotational Vibration (RV) performance with hard drive failure rate. Data collected from Baidu data center proves vibration is the major cause of hardware failure. Data collected between general server system and rack server system shows hard drive failure rate in general server system is up to 2.15%; versus 0.71 % in rack server system. This paper addresses optimal design of cooling fans, hard drive, hard drive brackets, chassis and system structure for Rotational Vibration (RV) performance. It then, introduces an advanced rack server system design optimized for Rotational Vibration performance; finally, uses comparison data to prove RV performance of rack server system design is superior to general purpose server system.