would a caviar black in RAID pose speeds equal to SSD ?

garyfl

garyfl

garyfl

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ive got 1 caviar black and wanted to know if paired with another would it have any advantage. reason im saying this is because the write speeds are around 125mb/sec so in RAID the write speed would be 250mb/sec ? i dont know how raid works so if someone could explain ? :) would it be better to go SSD or get another caviar black.
 
I ran 2 WD Black 500GB drives in raid 0, but have recently upgraded to an intel 80GB SSD. I never ran any benchmark tests to say which is faster but windows loads in half the time and all my apps seem faster on my new SSD drive.
 
I have 2x2TB Caviar blacks in RAID 0 and get sustained read and writes of
300meg/second using an Asus Sabertooth motherbaord. However for acessing small files and the like my Crucial M225 64GB is a lot snappier. Defo for a boot drive I'd go for a SSD drive. My M225 is not as quick as newer SSD drives that you can get now
 
There are many types of RAID, by far the most popular on here is RAID0

In Layman's terms: If you have two WD Caviar Black HDD's in RAID0, each with a write speed of 125MB/sec then if you go to write a, let's say 500MB the RAID controller will split the file into two and write 250MB to each drive at the same time. This will take 2 seconds as each drive will be writing 250MB at 125MB/sec.
The only issue with RAID0 is that if one drive fails you lose everything with no possibility of recovery. As there would be two drives, your chances would be doubled of complete data loss.

I have two WD VelociRaptors in RAID0 which are 10,000RPM compared to your 7,200RPM Caviar. They are still not as fast as a single SSD. There was a very noticeable difference when I went from 7,200RPM drive to two Raptors in RAID0. So I can only imagine how much better a jump from a single 7,200RPM to an SSD would be.
 
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