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LSI MegaRAID SAS 9265-8i RAID Controller Review - Benchmarks - Test System Setup and ATTO Baseline Performance

Usually a product has to be outdated and outperformed before it gets replaced, but not those in LSI's portfolio.

| RAID/HBA in Storage | Posted: Feb 16, 2012 6:32 pm
TweakTown Rating: 94%      Manufacturer: LSI

TweakTown image content/4/5/4561_13_lsi_9265_8i_megaraid_sas_raid_controller_review.png

 

We would like to thank the following companies for supplying and supporting us with our test system hardware and equipment: AVADirect, GIGABYTE, Cooler Master, LSI, Corsair. and Noctua.

 

You can read more about TweakTown's Storage Product Testing Workstation and the procedures followed to test products in this article.

 

As we mentioned previously we'll display several arrays today with the LSI MegaRAID 9265-8i. RAID 5 and RAID 6 will use a 64k size, the default when building an array. RAID 0 performance will be shown in 8kb, 64kb, 512kb and 1MB.

 

I've wanted to write a review in this format for years and this article took a very long time to finally finish. What you see today is only a small part of the tests run. We also tested with Seagate 15,000 RPM SAS drives, Corsair Performance 3's and a few oddball arrays with and without Fast Path. We'll also show the Fast Path results as well.

 

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For the review we are using eight Crucial C300 256GB drives with and without Fast Path enabled. Fast Path is the additional software that increases the IOPS performance of MegaRAID controllers. In RAID 0, 5 and 6 you double IOPS performance when used with drives that are capable of delivering high IOPS performance. Achieving 2x performance under real-world conditions would be very difficult, unlike the targeted tests.

 

 

ATTO Baseline Performance

 

Version and / or Patch Used: 2.34

 

ATTO is used by many disk manufacturers to determine the read and write speeds that will be presented to customers.

 

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In this ATTO run we see an eight drive (8D) RAID 0 (R0) array with a 1MB build. The read performance reaches 3500 MB/s while write performance is over 2770 MB/s. The 4k write speed is over 321 MB/s.

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