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Seagate Constellation.2 1TB 2.5-inch SAS RAID Report - Test System Setup and ATTO Baseline Performance

By: Chris Ramseyer | RAID in Storage | Posted: Jan 24, 2011 6:32 am
TweakTown Rating: 91%Manufacturer: Seagate



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 productsin this article.


Even though we are now into 2011, we plan to use our awesome 2010 test system well into the year. Look for a few updates in the coming weeks as we are starting to make a few changes.


For testing today we are using the ultra fast LSI 9260-8i. Testing was conducted in RAID 0 and RAID 5 on this controller. The single drive (JBOD) tests were ran on an ASUS P6T7 WS SuperComputer motherboard running an onboard Marvell SAS controller without cache.


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.




The Seagate Constellation.2 reaches full speed at the 128k block range and holds both read and write speeds of around 120MB/s through the rest of the test range. This was a little slower than what we achieved on the SATA model tested on the Intel ICH, but this is due to the controller and not the drive.


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