I/O Performance Analysis of Enterprise Server using Flash-based SSDs

Abstract

Background/Objectives: Recently, enterprise computing environments require high performance storage to provide various services. For this reason, we analyze the performance of server storage used by enterprises.

Methods/Statistical analysis: HDD and SDD were used for the experiments to analyze the performance of the enterprise storage server. In addition, performance was analyzed by applying RAID technology used in storage server. We used a validated benchmark program to analyze the exact performance of the experiment.

Findings: Experimental results show that the performance of RAID configuration using SSD is about 5 times better than RAID server which is composed of HDD in read / write. This result means that the performance of SSD-based RAID is higher than that of existing HDD-based RAID when a storage server is applied to servers providing various services recently. In addition, when SSD is added to a RAID server configured as an existing HDD, the read performance rises about 4 to 5 times like a RAID configured as an SSD. Based on these results, SSDs can be cached on the primary storage server to improve performance at the lowest cost of servers with many read I/Os. Finally, RAID systems that consist solely of SSDs can be guaranteed to use the latest RAID controllers that support SSDs.

Improvements/Applications: Based on the experimental results, there is a lot of performance improvement when applying SSD-only RAID storage to a server with a lot of read/write.