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A Principled Technologies test report 6
Drive performance comparison: Dell PowerEdge R710 drive options
SYSTEM COMPARISON
Figure 7 shows a side-by-side comparison of the key hardware features of the three solutions.
Appendix A presents detailed system information, and Appendix B presents detailed internal storage
information.
Hardware
specifications
SAS HDD solution
Mainstream Performance
SATA SSD solution
High Performance SAS
SSD solution
Server platform
Dell PowerEdge R710
Dell PowerEdge R710
Dell PowerEdge R710
Processor
Intel
®
Xeon
®
Processor
X5570
Intel Xeon Processor
E5620
Intel Xeon Processor
E5620
RAID controller
Dell PERC H700
Dell PERC H700
Dell PERC H700
RAID controller
firmware
12.0.1-0083
12.3.0-0032
12.3.0-0032
Memory
24GB memory (6 x 4 GB)
24GB memory (6 x 4 GB)
24GB memory (6 x 4 GB)
Drive layout
2 x HDD OS, 6 x HDD as
Iometer target volume
2 x HDD OS, 6 x SSD as
Iometer target volume
2 x HDD OS, 4 x SSD as
Iometer target volume
Figure 7: Key hardware features of the three solutions.
WHAT WE FOUND
We ran each test three times and report results from the run that produced the median of the three
IOPS results. We calculated the normalized performance for each access specification for each RAID level
tested, in this case RAID 5 and RAID 10.
Figure 8 displays the Mainstream Performance SATA SSD solution and High Performance SAS SSD
solution specific normalized IOPS improvement in performance across RAID 5 over the SAS HDD solution.
Test access specifications and
block size across RAID 5
SAS HDD solution
Mainstream Performance
SATA SSD solution
High Performance SAS
SSD solution
DB OLTP 8K, 70/30, 100/0
1.00
7.67
20.51
Exchange email 4K, 67/33, 100/0
1.00
8.26
18.85
Exchange email 8K, 67/33, 100/0
1.00
8.01
21.52
Exchange email 64K, 50/50,
100/0
1.00
5.28
9.38
OS drive 8K, 70/30, 100/0
1.00
7.76
20.83
Web file server 4K, 95/5, 75/25
1.00
13.38
19.99
Web file server 8K, 95/5, 75/25
1.00
10.77
20.54
Web file server 64K, 95/5, 75/25
1.00
6.35
8.06
Figure 8: The Mainstream Performance SATA SSD solution and High Performance SAS SSD solution normalized IOPS improvement
in performance across RAID 5 over the SAS HDD solution. Higher numbers are better.
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