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SSD DC S3500 Workload Characterization in RAID Configurations
December 2013 White Paper
329903-001US 3
Contents
1.0 Revision History ................................................................................................... 5
2.0 Supporting Documentation ................................................................................... 5
3.0 About This Guide .................................................................................................. 5
4.0 Overview .............................................................................................................. 5
4.1 What Impacts SSD IO Performance................................................................. 6
4.2 Queue Depth and Latency ............................................................................. 7
4.3 Why Mixed Workload Is Important .................................................................. 7
4.4 Drive Endurance ........................................................................................... 8
4.5 Selection of RAID Controller........................................................................... 8
5.0 RAID 1 .................................................................................................................. 9
5.1 Test System Specifications ............................................................................ 9
5.2 Intel SSD DC S3500 Series in RAID 1 Performance Characterization Data ........... 10
5.3 RAID 1 Consistency ..................................................................................... 13
5.4 RAID 1 Performance Conclusions ................................................................... 13
6.0 RAID 5 ................................................................................................................ 14
6.1 Test System Specifications ........................................................................... 14
6.2 Intel SSD DC S3500 Series in RAID 5 Performance Characterization Data ........... 14
6.3 RAID 5 Performance Consistency ................................................................... 16
6.4
RAID 5 Performance Conclusions ................................................................... 17
7.0 Summary ............................................................................................................ 18
8.0 Appendix ............................................................................................................ 19
8.1 RAID Levels ................................................................................................ 19