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SSD DC S3500 Workload Characterization in RAID Configurations

White Paper December 2013

10 329903-001US

5.2 Intel

SSD DC S3500 Series in RAID 1 Performance

Characterization Data

This section provides performance characterization data for the Intel

SSD DC S3500

Series in RAID 1 configurations.

To establish baseline expectations for IOPS, the Intel SSD DC S3500 Series 480GB

drives were evaluated in RAID 1 sets of 2, 4, 6 & 8 drives. The data collected was based

on a different mix of read and write random and sequential workloads. Since higher

queue depths can sometimes yield higher IOPS, queue depths of 1, 2, 4, & 8 per drive

were chosen in the test setup. Multiple transfer sizes were tested, however, only

selected data is presented here. All tests were done using the entire LBA range of the

virtual drive. Tests were repeated at least twice to validate results.

Drives were prepared using IOMeter to fill the entire user area of the drive with data.

Then, the first workload of each type (Sequential or Random) was 100% write

performed for 120 minutes. Each subsequent workload was run for 12 minutes, with

average IOPS collected over the last 10 minutes of the run.

The following figures show the different levels of performance for a selection of

configurations.

Note: The scale of the IOPS charts is variable to clarify the changes that occur as drives are

added.

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 18 19

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Intel 240gb User Manual Page 10