2730 2730t 5730 performance comparison 20 may 2008
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2730/2730T/5730 Performance Comparison 20 May 2008. NDA Notification.

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2730 2730t 5730 performance comparison 20 may 2008

2730/2730T/5730

Performance Comparison

20 May 2008


Nda notification
NDA Notification

This presentation contains information related to projects that are currently in planning and/or development stages. This information represents the current intentions of Dot Hill Systems. However, all aspects of these projects, including, but not limited to funding, availability, shipping dates, configurations, capacities, performance, and all other characteristics are subject to change and/or cancellation without notice.

This material is confidential to Dot Hill Systems and should be disclosed to external entities only under the terms of an executed non-disclosure agreement (NDA).

Distribution of this material to Dot Hill Systems Field Representatives should be done through the Dot Hill Systems NDA process.

The information contained herein is considered privileged, confidential and protected from disclosure. If you are not the intended recipient or their employee/agent responsible for its delivery, you are requested to refrain from any duplication or distribution of this message or its contents, in respect of the rights of the designated recipient and sender, and to delete it from your computer.


About this presentation
About This Presentation

  • Project Name “Neptune” refers to the 2730/2730T

  • Project Name “Krypton” refers to the 5730

  • The performance information contained in this presentation was obtained within the Engineering Verification Lab using IOMeter

  • Actual performance results within specific application use may vary from the contents of this presentation

  • This information is provided only as a reference point and no “performance tuning” has been applied




2730t vs 5730 in raid 5 6
2730T vs. 5730 in RAID 5 & 6

RAID 5 & 6 Sequential Write with 48 drives

5730’s storage controller processor accounts for the higher sequential write transaction performance both Active/Active and failed over. 5730 sustains between 150% and 220% higher write transaction performance than 2730T at deeper queued small block host request sizes.


2730t vs 5730 in raid 5 61
2730T vs. 5730 in RAID 5 & 6

RAID 5 & 6 Sequential READ with 48 drives

5730 controller read bandwidth is 800MB/s per controller versus 2730T peaking at 570MB/s. 5730 sustains 40% higher read throughput then 2730T at large block sizes.

The Active/Active 5730 read performance in the curve is limited by the four port FC host. 5730 Active/Active read performance can sustain 1600MB/s with multiple host systems accessing.


5730 scalability testing 24 60 drives
5730 Scalability Testing (24 – 60 Drives)

Active/Active Controller Random Read/Write

Drive numbers have a much larger affect on random performance. For reads there is almost a direct correlation between the total number of drives accessed and the total random transaction IOPS. The drive random access performance is the limiting factor for reads in general.

Writes top out at 48 drives. Additional drives won’t improve random write numbers. The limit becomes the controller processing and cache algorithm.


5730 max configuration 108 drive
5730 Max Configuration (108 Drive)

Sequential Reads/Writes for Active/Active (Throughput & IOPS)

The RAID50 VDisk in this configuration is 27-drives, with 3 sub-arrays of 9-drive RAID5.

In this test configuration two dual port host systems are connected through the switch to 5730. Each host accesses the 4 LUNs presented by the 5730 Active/Active RAID system. Each host issues a queue depth / LUN, therefore each LUN sees 2x the total queue depth of each host.


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