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Seagate Constellation.2 1TB 2.5-inch SAS RAID Report - Benchmarks - Everest Random Access Time

The Constellation.2 is back, this time with a SAS interface and three drives for a full on RAID Report. (NASDAQ:STX)

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

Everest Random Access Time

 

Version and / or Patch Used:4.60
Developer Homepage:http://www. lavalys.com
Product Homepage:http://www.lavalys.com

 


 

Everest Ultimate and Corporate Edition offer several different benchmarks for testing and optimizing your system or network. The Random Access test is one of very few if not only that will measure hard drives random access times in hundredths of milliseconds as oppose to tens of milliseconds.

 

Drives with only one or two tests displayed in write the write test mean that they have failed the test and their Maximum and possibly their Average Scores were very high after the cached fills. This usually happens only with controllers manufactured by JMicron.

 


TweakTown image content/3/7/3793_11.png

 

The LSI 9260-8i does a good job of keeping the access times low even when adding up to 8 drives in an array. This wasn't always the case with RAID controllers, as older SCSI RAID controllers use to add latency with each drive added. Here we see that even the RAID array configurations are very close to the latency of a single drive.

 

TweakTown image content/3/7/3793_12.png

 

The write access time has actually decreased with the RAID controller in the data path, since the controller has an onboard cache buffing system.

 

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