We precondition the drive for 16,000 seconds, or 4.44 hours, receiving performance data every second. We plot this data to observe the test subject's descent into steady-state. We plot both IOPS and Latency. We plot IOPS (represented by blue scatter) in thousands and Latency (represented by orange scatter) in milliseconds. We observe steady-state is achieved at 5,000 seconds of preconditioning for a single drive; 4,000 seconds for a two-drive array. We do note a significant number of outlying IO's.
An Email Server workload is a demanding 8K test with a 50 percent R/W distribution. This application gives a good indication of how well a drive will perform in a write heavy workload environment.
Intel's DC P3700 shows off its write prowess at QD8-16 where it leads the field; it is even able to outperform the DC P3608 at queue depths of up to 64. The XC100E5C shows itself to be a better choice than Samsung's XS1715 for this demanding type of workload. At queue depths of 32 and beyond, the XC100E5C array asserts its dominance over Intel's DC P3608. At QD256, the XC100E5C array outperforms Intel's DC P3608 by nearly 100K IOPS or 98%. A two-drive XC100E5C array does take an additional slot in comparison to the DC P3608, but it uses the same number of PCIe lanes (8), and cost per GB is similar.
Conclusion (TL;DR): Techman's XC100E5C is a better choice than Samsung's XS1715 with this particular type of workload. A two-drive XC100E5C array provides nearly twice the performance of Intel's DC P3608 at QD256.
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